- Research article
- Open Access
- Open Peer Review
Main clinical features in patients at their first psychiatric admission to Italian acute hospital psychiatric wards. The PERSEO study
© Ballerini et al; licensee BioMed Central Ltd. 2007
- Received: 11 May 2006
- Accepted: 19 January 2007
- Published: 19 January 2007
Few data are available on subjects presenting to acute wards for the first time with psychotic symptoms. The aims of this paper are (i) to describe the epidemiological and clinical characteristics of patients at their first psychiatric admission (FPA), including socio-demographic features, risk factors, life habits, modalities of onset, psychiatric diagnoses and treatments before admission; (ii) to assess the aggressive behavior and the clinical management of FPA patients in Italian acute hospital psychiatric wards, called SPDCs (Servizio Psichiatrico Diagnosi e Cura = psychiatric service for diagnosis and management).
Cross-sectional observational multi-center study involving 62 Italian SPDCs (PERSEO – Psychiatric EmeRgency Study and EpidemiOlogy).
253 FPA aged <= 40 were identified among 2521 patients admitted to Italian SPDCs over the 5-month study period. About half of FPA patients showed an aggressive behavior as defined by a Modified Overt Aggression Scale (MOAS) score greater than 0 Vs 46% of non-FPA patients (p = 0.3651). The most common was verbal aggression, while about 20% of FPA patients actually engaged in physical aggression against other people. 74% of FPA patients had no diagnosis at admission, while 40% had received a previous psychopharmacological treatment, mainly benzodiazepines and antidepressants. During SPDC stay, diagnosis was established in 96% of FPA patients and a pharmacological therapy was prescribed to 95% of them, mainly benzodiazepines, antipsychotics and mood stabilizers.
Subjects presenting at their first psychiatric ward admission have often not undergone previous adequate psychiatric assessment and diagnostic procedures. The first hospital admission allows diagnosis and psychopharmacological treatment to be established. In our population, aggressive behaviors were rather frequent, although most commonly verbal. Psychiatric symptoms, as evaluated by psychiatrists and patients, improved significantly from admission to discharge both for FPA and non-FPA patients.
- Aggressive Behavior
- Brief Psychiatric Rate Scale
- Verbal Aggression
- Brief Symptom Inventory
International studies show a growing recognition that subjects presenting with psychotic symptoms for the first time need specialized management . However, few data are available about the clinical characteristics of patients at their first psychiatric admission (FPA), their management, and their subjective well-being.
In Italy, a 1978 law provides that psychiatric patients can only be admitted to hospital psychiatric wards, no other admission (i.e. to psychiatric hospitals, which were in fact abolished) shall be allowed. Very few epidemiological studies have been carried out on psychiatric in-patients since then. Acute hospital psychiatric wards are specific structures (called SPDCs in Italy, Servizio Psichiatrico Diagnosi e Cura = psychiatric service for diagnosis and management), located within general hospitals, for referral of acute patients with psychiatric-related illnesses. Patients stay in SPDCs only during the acute phase. At discharge, they usually receive therapeutic prescriptions and are no longer followed by SPDC services but by district health facilities, which are not part of general hospitals . SPDCs could be the perfect setting for the study of mentally ill patients at their first presentation to hospital, although, in such emergency situations, the implementation of clinical research and epidemiology programs is rather difficult. In fact, poor information is available about clinical characteristics and behaviors of first admitted patients. Moreover, little is known about the treatments administered in SPDCs.
Aggression in psychiatric wards is common and represents a growing concern for mental health professionals, due to the increasing number of incidents [3–5]. However, recent data suggest the importance of distinguishing between different types of aggression [6, 7]. Foley and co-workers showed that individuals with first episode psychosis are at high risk of demonstrating aggression at the time of presentation to hospital, but at relatively low risk of developing a behavior likely to cause injury to other people .
PERSEO – Psychiatric EmeRgency Study and EpidemiOlogy – is a large observational multi-center study involving 62 Italian SPDCs, aimed at assessing the prevalence and incidence of aggressive behavior in patients admitted to SPDCs and at describing the clinical features and the management of such patients. Within the admitted psychiatric patients, the PERSEO study aimed at giving a detailed description of FPA patients too. PERSEO follows EPICA, a pilot study on 728 psychiatric cases enrolled in 15 Italian SPDCs, where the Italian version of two psychometric scales, namely the Modified Overt Aggression Scale (MOAS) and the NOSIE (Nurses' Observation Scale for In-patient Evaluation), were validated .
This report analyzes FPA patients only, among the PERSEO population, with the objective of describing their clinical and treatment characteristics and their management inside the SPDC.
PERSEO is a cross-sectional observational multi-center study aimed at assessing some clinical and epidemiological features of patients referring to Italian SPDCs, and in particular: their socio-demographic characteristics, the distribution of diagnoses, the prevalence of aggressive behavior, the clinical picture at presentation to SPDCs and the overall management and pharmacological treatment approach in the emergency setting. Following approval by the Ethics Committees of the participant institutions and obtaining of the patients' written informed consent, a cohort of 2521 consecutive subjects aged 18 years or more presenting to 62 SPDCs distributed throughout Italy between September 2003 and April 2004 was enrolled into the study. Patients were admitted to the study only once over the enrolment period, and subjects at their FPA were identified. Diagnosis at admission and discharge was assessed according with ICD-9 CM criteria and then grouped by diagnosis group .
The patients' clinical status was evaluated at admission, then for the first three days of hospital stay and at discharge or at day 30, whichever came first. Psychometric evaluations included the 24 items Brief Psychiatric Rating Scale (BPRS) , the Brief Symptoms Inventory (BSI) , and the MOAS.
The MOAS  has been recently validated in Italian by Margari et al. . The MOAS records the onset, rates the severity of aggression episodes and can be filled out by nursing staff or physicians, on the basis of direct observation and clinical history of the 24 hours before the index visit according with previous use by other authors [8, 14, 15]. This scale includes four domains: verbal aggression, aggression against property, autoaggression, and aggression towards others. Each subject was rated on a scale between zero (no aggression) and four (maximum score) on each domain. The scores were weighted as described by Kay et al.  to calculate the total MOAS score. Only scales thoroughly filled out both at admission and discharge were considered for analysis. The prevalence of aggressive patients was then calculated as the proportion of patients receiving a total MOAS score greater then zero at admission (i.e. having shown at least one aggressive behavior within 24 hours before admission) among all patients evaluated for that scale. This dichotomization separates patients with no aggression from those ones who had any severity and type of aggression, either verbal, physical against self, others or objects.
Psychopathology was evaluated from the psychiatrist's and the patient's point of view, by means of the BPRS and the BSI respectively. The BPRS version 4.0 is a widely recognized symptomatic scale for the psychopathological evaluation of patients and was validated in Italian by Morosini et al . It records the severity of symptoms on a qualitative scale with 7 levels, ranging from 'absent' to 'very serious'. The total score and the domains' scores, namely anxiety-depression, thought disorders, isolation-motor retardation, hostility-suspiciousness, hyperactivity, mania, were calculated . BSI  is a self-evaluation scale for general psychiatric symptoms. It covers 53 items, which evaluate 9 elements: somatization, obsessive-compulsive symptoms, interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, paranoid ideation, psychoticism. The internal scores for each dimension of the scale were calculated on the scales which were fully completed.
Among the overall PERSEO population, we focused on FPA patients no older than 40. The 40 years age limit was decided in order to exclude FPA due to late onset disorders and to cognitive impairment or dementia, and also with the aim of obtaining data possibly useful for the identification of psychopathological risk factors and the characteristics of the clinical onset.
Socio-demographic and anamnestic data, life habits, reason for hospital admission, referring person, clinical evaluations, concomitant diseases, previous and ongoing psychiatric treatment, admission and discharge diagnoses and treatments administered in SPDC were recorded on case record forms . Specific data were recorded for FPA patients only, such as symptoms at onset, patient management at onset, pharmacological and non-pharmacological treatment at onset and risk factors for the psychiatric disease. Project and data management other than statistics were conducted by MediData Studi e Ricerche. Data were analyzed using SAS for Windows, release 8.2. All quantitative variables were described by means, standard deviations and ranges. Absolute and relative frequency distributions were given for qualitative variables. Comparisons were performed by Student's t test for mean values, chi-square test, or Fisher exact test. When multiple comparisons were performed Bonferroni's correction was applied.
Socio-demographic characteristics of FPA patients
Gender (1) , N (%)
FPA patients (N = 253)
Non-FPA patients (N = 2219)
Age, mean (SD)
Occupational status (2) , N (%)
Marital status (2) , N (%)
Life habits, N (%)
Admission status (1) , N (%)
Age distribution of FPA patients only, stratified by gender. Percentages are referred to the total number of FPA patients within gender
Age classes, N (%)
Diagnoses at admission to hospital psychiatric wards and at discharge. The percentage is calculated on patients with an established diagnosis at admission and at discharge within each group of patients.
Admission N (%)
Discharge N (%)
Admission N (%)
Discharge N (%)
Affective psychosis, depression, depressive status
Schizophrenia, paranoid status, other non-organic psychosis
Substance abuse, dependence
Affective psychosis, manic episodes, excitement status
Dementia and psycho-organic syndromes
Acute stress reactions, adaptation reactions
Total N. of patients with diagnosis
Psychopharmacological treatment before admission to hospital psychiatric wards and at discharge. Percentages are calculated on patients on treatment, at symptoms onset (FPA only) and at discharge.
At symptoms onset N (%)
Discharge N (%)
FPA patients only
Total N. of patients on treatment
As far as risk factors are concerned, 65 FPA patients (26%) had relatives with psychiatric disease, most commonly the mother (47.7%), followed by the father (41.5%), then brothers (21.5%), and sisters (15%). More than half of FPA patients (57%) had experienced at least one stressful event before the onset of psychiatric symptoms. Of these stressful events, 63% were emotional or family-related, 17% were financial problems, and 10% were health problems.
Prevalence of aggressive behavior in FPA patients, as expressed by MOAS. Percentages are calculated on patients valuable for MOAS, i.e. with MOAS fully compiled both at admission and discharge.
FPA patients (N = 236)
Non-FPA patients (N = 2089)
MOAS scores, N (%)
Against Other People
Scores of main BPRS domains and BSI symptom scales at admission and discharge.
Admission score Mean (SD)
Discharge score Mean (SD)
Admission score Mean (SD)
Discharge score Mean (SD)
BPRS domains (items)
Thought disorders (10-11-15)
Isolation-Motor retardation (16-17-18)
BSI symptom scales (items)
Interpersonal sensitivity (20+21+22+42)/4
Phobic anxiety (8+28+31+43+47)/5
Paranoid ideation (4+10+24+48+51)/5
Treatment at discharge for FPA patients was mainly benzodiazepines (69% of cases), followed by atypical and typical antipsychotics (51% and 38% respectively). This pattern was not significantly different from the non-FPA cases enrolled in the study (from the overall PERSEO population), given that, at discharge, 69% and 53% of non-FPA patients were respectively on benzodiazepines and atypical antipsychotics (p > 0.05, with Bonferroni correction for 5 multiple comparisons). A higher, though not significant, proportion of non-FPA with typical antipsychotics (46%) was found. A much lower proportion of mood stabilizers was observed in FPA cases (21% Vs 35% of non-FPA cases; p < 0.001, with Bonferroni correction for 5 multiple comparisons); whereas a higher, though not significant, percentage of antidepressants (41%) was found in FPA by comparison with non-FPA patients (34%; p = 0.2, with Bonferroni correction for 5 multiple comparisons).
When psychiatric diagnosis is taken into account, benzodiazepines are still the most widely prescribed drugs in FPA patients (ranging from 60% for "substance abuse" diagnosis to 76% for personality disorders). Atypical and conventional antipsychotics are frequently given to FPA patients diagnosed with schizophrenia, paranoid status or other non organic psychoses (66% atypical, 55% typical). Atypical drugs are administered also in case of personality disorders (44%; 42% typical) or affective psychoses/depressive episode-status (45%; 25% typical). Antidepressants, as expected, were frequently prescribed to affective psychoses, neurotic disorders and patients diagnosed with acute stress/adaptive reaction (not shown).
To our knowledge, there are very few large epidemiological studies describing the socio-demographic and clinical characteristics as well as the aggressive behavior of first admitted patients to Italian psychiatric emergency structures, the SPDCs. The epidemiology of first episode psychoses and first psychiatric admissions is poorly understood because of the paucity of systematic studies. Yet, it is considered crucial for understanding psychiatric disorders and aggressive behaviors at presentation to hospital, in order to establish proper management [8, 17, 18]. A major problem is that, in emergency situations, the implementation of clinical research and epidemiology programs is rather difficult. Thus, little data are available about clinical characteristics and behaviors of first episode psychosis and FPA patients, as well as about the conduct in psychiatric wards, both in Italy and in Europe. A few years ago, the paucity of epidemiological studies carried out in psychiatric emergency structures prompted some Authors to stress the need to focus on the quality of diagnosis and management in such structures, as it happens for community structures . For this study, from the overall 2521 cases collected by the PERSEO (Psychiatric EmeRgency Study and EpidemiOlogy) project – a large Italian observational multi-center study involving 62 SPDCs, aimed at assessing the prevalence and incidence of aggressive behavior in patients admitted to a SPDC and at describing the clinical features and management of such patients – we selected a sample of 253 patients aged ≤ 40 years at FPA, which represents the largest studied population of first admitted patients in Italian psychiatric emergency structures. A comparison between FPA and non-FPA patients is given here. However it is noteworthy that the comparison between groups is not the aim of the study, which is not a case-control. In fact, non-FPA patients were not selected according to any pairing criterion.
A delay in the occurrence of the first psychotic episode in females by comparison with males has been reported by several authors, at least for schizophrenia, and the role of estrogens in modulating serotoninergic function has been discussed by numerous authors [20–23]. In our population, there was no significant difference in age distribution at FPA between males and females, though the frequency peak actually occurred about 5 years later among women [30–34 years) than among men (25–29 years). The percentage of smokers was quite high among our patients (54.6%), not surprisingly, as it is well known that psychiatric patients are more vulnerable to nicotine-dependence and that people with mental illness are about twice as likely to smoke as others [24, 25].
The most frequent diagnoses were depression and schizophrenia both at admission and at discharge, even though in an inverted frequency order, i.e. more depression diagnoses at admission, more schizophrenia at discharge. This is consistent with the 8-year interim results of an Irish epidemiological long term prospective study, the Cavan-Monaghan study on first-episode psychosis , which outlined that three are the primary diagnostic nodes at the first psychotic episode, i.e. schizophrenia spectrum psychoses, bipolar disorder, and major depressive disorder, around which there are numerous additional and overlapping diagnostic categories, that are distinct only in terms of their operational definition.
Psychiatric patients and individuals with schizophrenia in particular are reported to engage in frequent and sometimes severe acts of aggression [26–28]. However, the importance of distinguishing between different types of aggression has been pointed out , and recent data by Foley and co-workers, on 157 patients with a first episode of DSM-psychosis presenting to a secondary referral psychiatric service over a 4-year period, have shown that subjects with first episode psychosis are at high risk of demonstrating an aggressive behavior at the time of presentation, but at relatively low risk of engaging aggression against other people . Our observational study seems to confirm that FPA patients have more commonly a verbally aggressive behavior, rather than a physical one against self, properties or other people. However, the prevalence of aggression against other people observed in our survey is higher (22.5%) than that reported by Foley (14%)  and by other authors. A 5-year Italian study on 1534 acute psychiatric in-patients reports 21% rate of aggressive episodes, with 7.5% prevalence of physical attacks , while a 3-year study on 934 psychiatric acute ward patients in Norway reports 10.5% aggressive patients .
In our study population, no significant difference was observed, in terms of aggressive behavior, between FPA and non-FPA patients, or between males and females. Previous data about gender differences in aggressive patients are controversial: the Norwegian study by Mellesdal et al.  reported no significant sex difference by total rate of aggression, but a trend for female patients to have higher rates of assaults, while Foley et al.  observed that males had significantly higher MOAS total scores by comparison with females, which does not exactly means a different prevalence of aggressive behavior. Concerning the possible correlation between aggression and diagnosis or first versus repeated admission, the Italian study by Grassi et al.  reported that most aggressive patients had a diagnosis of schizophrenia and/or delusional syndromes (55%) and previous psychiatric admissions (92%). Also in our study, the most frequent diagnosis among aggressive patients was schizophrenia, even though at a lower extent (32%), while no difference was registered in FPA versus non-FPA patients. In our study patients, a higher percentage of involuntarily admitted individuals showed at last one aggressive behavior, and this seems to definitely confirm previous observations that compulsory admission is associated with aggression [8, 29, 30].
The differences we have shown between the PERSEO study and other studies are difficult to interpret, as such studies differ in study design, inclusion criteria, or methods for evaluation. In fact, while Grassi et al  used the SOAS and defined aggressive all patients with a moderate or severe aggression, in the PERSEO study the MOAS was used and its total score was transformed into binary form in order to have patients with no aggression vs patients with any degree of aggression. Moreover Foley et al  used the MOAS, but a different classification criteria of aggressive behavior was applied: an individual was considered non-aggressive even when it scored greater than zero on the subscale for verbal aggression.
An interesting aspect to be underlined is that, despite the lack of a clearly defined diagnosis in the majority of our FPA patients before admission, almost half of them had received some kind of psychopharmacological treatment. This finding seems to mirror those of other reports from US studies [31, 32] stating that many patients receiving psychopharmacological treatment have not completed a previous adequate clinical assessment and that only about half of them actually meet the diagnostic criteria for a mental disorder. During SPDC stay psychiatric diagnoses were defined and pharmacological therapy was established for almost all patients. Comparing the treatments prescribed at discharge with those received by the patients before admission, a high increase in the prescription of antipsychotics, mainly atypical, and mood stabilizers is observed. This may be explained by the fact that an adequate clinical and diagnostic assessment, as performed in the hospital setting, led to a more specific therapeutic approach. Moreover, the trends in drug use from 1993 to 2002, as reported in several American and Italian pharmacoepidemiological studies [33–36], show that there is an increasing use in atypical antipsychotics prescription, especially among psychiatric in-patients. Unfortunately, we were unable to assess the adequacy of treatment, because our study design and duration of follow-up were insufficient for such an analysis.
In conclusion, our findings suggest that individuals presenting at their first psychiatric ward admission have often not undergone previous adequate psychiatric assessment and diagnostic procedures. In our population, aggressive behaviors were rather frequent, although more commonly verbal. The first hospital admission allowed diagnosis and psychopharmacological treatment to be established in almost the totality of patients.
The strength of this study lies in the relatively large number of FPA patients, although their description is limited to an Italian sample of psychiatric patients. This particular setting might be the reason of some differences we have found in treatment and patient management. Therefore, future surveys on psychiatric ward patients should address two further objectives: first, the identification of possible patient-staff interactions and of situations favoring or precipitating the aggressions; secondly, the assessment of the adequacy of the established therapy.
The following centers have collaborated to the study:
▪ Barale F, Bonzano A, Scioli R – Neurol. Inst. of Mondino Pavia
▪ Bellomo A, De Giorgi A, Cammeo C – Osp.Riuniti Hospital Foggia
▪ Cao A, Zara B – San Francesco Hospital Nuoro
▪ Conforti I, Chillemi C – Psychiatric Department Parma
▪ Dagnino L, Ponzoni M – Ospedali Riuniti Hospital Bergamo
▪ Della Pietra F, Benettazzo M – Azienda USL 16 Hospital Padova
▪ Esposito V, Sposito M – Psychiatric Department Palermo
▪ Fato M, Signorello G – Hospital department of Ponente Genova
▪ Fiorenzoni S, Singali A – Ponte Nuovo Hospital Firenze
▪ Margari F, Sicolo M – Policlinico Consorziale Hospital Bari
▪ Martino C, Leria G – Santa Croce Hospital Torino
▪ Tavolaccini L, Nigro G – Martini Hospita lTorino
▪ Russo V, La Rovere R – SS. Immacolata Hospital Chieti
▪ Righi R, Mazzo M – Hospital of Adria Rovigo
▪ Rocchetti R, De Martiis L – Umberto I Hospital Ancona
▪ Rodighiero S, Morello M – Hospital of Monselice Padova
▪ Vescera M, Pisciotti D G. – Iannelli Hospital Cosenza
▪ Villari V, Barzegna G – Molinette S. G. Battista Hospital Torino
▪ Annicchiarico V, Cosmai MG – Hospital of Venere Bari
▪ Rossi G, Baraldi E C. – Poma Hospital Mantova
▪ Casacchia M, Ruggiero D – San Salvatore Hospital L'Aquila
▪ Galimberti P, Fellini F A. – Angelucci Hospital Roma
▪ Francobandiera G – Civil Hospital Sondrio
▪ Gaspari D, Turati – SSS. Trinità Hospital Novara
▪ Matacchieri BG. Moscati – Hospital Taranto
▪ Mautone A, Casale M – Hospital of Sant'Arsenio Salerno
▪ Mellado C, Scaramelli B- L. Sacco Hospital Milano
▪ Filippo A, Miccichè M – Beato Angelo Hospital Cosenza
▪ Minervini L, Banzato C – Azienda USL 16 Hospital Padova
▪ Orengo S, Alisio G – San Paolo Hospital Savona
▪ Picci RL, Venturello S – S. Luigi Gonzaga Hospital Torino
▪ D'Aloise A, Vaira F- S. Timoteo Hospital Campobasso
▪ Boccalon RM, Cavrini L – Sant' Anna Hospital Ferrara
▪ Cogrossi S, Prato K – Osp. Maggiore Hospital Cremona
▪ Cremonese C, Menardi A – Azienda Hospital Padova
▪ Parisi M, Mentastro C – Umberto I Hospital Enna
▪ Prosperini P, Binda V – Magg. della Carità Hospital Novara
▪ Romano G, Materzanini A – Mellino Mellini Hospital Brescia
▪ Crudele A, Stella G – Hospital of Barletta Bari
▪ Petio C, Fuà B – Ottonello Institute Bologna
▪ Laich L, Miori M – Hospital department of Arco Trento
▪ Salteri A, Catania G – Vimercate Civil Hospital Milano
▪ Achena M, Fara FM – Hospital of Sassari Sassari
▪ Padoani W, Compagno S – Hospital of Conegliano Treviso
▪ Ballerini A, Pecchioli S, Moretti S. – S.M.N. Hospital Firenze
▪ Bacchi L, Vicari E – Hospital of Partinico Palermo
▪ Arvizzigno C, Minunni P – F. Iaia Hospital Bari
▪ Rossi E, Zaiti MF – L. Pierantoni Hospital Forlì Cesena
▪ Boncompagni G, Selleri M S. – O. Malpighi Hospital Bologna
▪ Minnai GP, Loche AP – San Martino Hospital Oristano
▪ Russo F, Antonucci A – Nuovo R. Margherita Hospital Roma
▪ Chiurco L, Amendola R – G. Compagna Hospital Cosenza
▪ De Giovanni MG, Martano A – V. Fazzi Hospital Lecce
▪ Borsetti G, Santone G – Umberto I Hospital Ancona
▪ Pettolino AR, Lisanti F – Umberto I Hospital Foggia
▪ Parodi A, Ciammella L, Botto G. – Villa Scassi Hospital Genova
▪ Gillotta S, Florio G – Cannizzaro Hospital Catania
▪ Fiore F, Santangelo E – A. Landolfi Hospital Avellino
▪ Fucci G, Ricci M – Psychiatric Department Ravenna
▪ Ciaramella A, Della Porta A – S. Sebastiano M. Hospital Roma
▪ Sittinieri M, D'Asta L – Paternò Arezzo Hospital Ragusa
▪ Triolo S, Spatola A – ARNAS Civil Hospital Palermo
▪ Frediani S, Rossi A, Macchi S, Giovannini L, Germani S, Fabbri L – Eli Lilly Italia, Florence, Italy
▪ Fiori G (project leader), Sala S (clinical project manager assistant), Sgarbi S (clinical project manager), Simoni L (statistics), Zanoli M (clinical data manager) – MediData Studi e Ricerche, Modena, Italy.
This study was fully supported by an educational grant issued by Eli Lilly, Italy.
The Authors thanks MediData for project management, statistical analyses and medical writing and Stefania Germani for her support in the study management.
- Spencer E, Birchwood M, McGovern D: Management of first-episode psychosis. Advances in Psychiatric Treatment. 2001, 7 (2): 133-142. 10.1192/apt.7.2.133.View ArticleGoogle Scholar
- Mosher LR: Italy's revolutionary mental health law: an assessment. Am J Psychiatry. 1982, 139 (2): 199-203.View ArticlePubMedGoogle Scholar
- Preti A, Miotto P: Increase in first admissions for schizophrenia and other major psychoses in Italy. Psychiatry Res. 2000, 94 (2): 139-152. 10.1016/S0165-1781(00)00136-0.View ArticlePubMedGoogle Scholar
- Hubschmidt T: The prosecution of violent psychiatric inpatients: one respectable intervention. Psychiatrische Praxis. 1996, 23: 26-28.Google Scholar
- Poster EC: A multinational study of psychiatric nursing staffs' believes and concerns about working safety and patient assault. Arch Psychiatr Nurs. 1996, 10: 365-373. 10.1016/S0883-9417(96)80050-1.View ArticlePubMedGoogle Scholar
- Ng B, Kumar S, Ranclaud M, Robinson E: Ward crowding and incidents of violence on an acute psychiatric inpatient unit. Psychiatr Serv. 2001, 52 (4): 521-525. 10.1176/appi.ps.52.4.521.View ArticlePubMedGoogle Scholar
- Troisi A, Kustermann S, Di Genio M, Siracusano A: Hostility during admission interview as a short-term predictor of aggression in acute psychiatric male inpatients. J Clin Psychiatry. 2003, 64: 1460-1464.View ArticlePubMedGoogle Scholar
- Foley SR, Kelly BD, Clarke M, McTigue O, Gervin M, Kamali M, Larkin C, O'Callaghan E, Browne S: Incidence and clinical correlates of aggression and violence at presentation in patients with first episode psychosis. Schizophr Res. 2005, 72: 161-168. 10.1016/j.schres.2004.03.010.View ArticlePubMedGoogle Scholar
- Margari F, Matarazzo R, Casacchia M, Roncone R, Dieci M, Safran M, Fiori GG, Simoni L, the EPICA study group: Italian validation of MOAS and NOSIE: a useful package for psychiatric assessment and monitoring of aggressive behaviours. Int J Met Psych Res. 2005, 14: 109-118. 10.1002/mpr.22.View ArticleGoogle Scholar
- Ballerini A, Boccalon RM, Boncompagni G, Casacchia M, Margari F, Minervini L, Righi R, Russo F, Salteri A, Frediani S, Rossi A, Germani S, Fiori G, Sgarbi S, Simoni L: Lo studio PERSEO: evoluzione di un'indagine sui servizi psichiatrici di diagnosi e cura italiani. obiettivi e metodologia. Giornale Italiano di Psicopatologia. 2006, 12: 20-30. In ItalianGoogle Scholar
- Ventura J: Training and quality assurance with the Brief Psychiatric Rating Scale: 'the Drift Busters'. Int J Met Psych Res. 1993, 3: 221-224.Google Scholar
- Derogatis LR, Melisaratos N: The Brief Symptom Inventory: an introductory report. Psychol Med. 1983, 13: 595-605.View ArticlePubMedGoogle Scholar
- Kay SR, Wolkenfield F, Murrill LM: Profiles of aggression among psychiatric patients. I. Nature and prevalence. J Nerv Ment Dis. 1988, 176: 530-546.View ArticleGoogle Scholar
- Grassi L, Peron L, Marangoni C, Zanchi P, Vanni A: Characteristics of violent behaviour in acute psychiatric in-patients: a 5-year Italian study. Acta Psychiatr Scand. 2001, 104: 273-279. 10.1034/j.1600-0447.2001.00292.x.View ArticlePubMedGoogle Scholar
- Mellesdal L: Aggression on a psychiatric acute ward: a three year prospective study. Psychol Rep. 2003, 92: 1229-1248. 10.2466/PR0.92.4.1229-1248.View ArticlePubMedGoogle Scholar
- Morosini PL: Presentazione dell'adattamento italiano della Brief Psychiatric Rating Scale versione 4.0 ampliata (BPRS 4.0). Rivista di Riabilitazione Psichiatrica e Psicosociale. 1995, III: 195-226.Google Scholar
- Inch R, Crossley M, Keegan D, Thorarinson D: Use of the Brief Psychiatric Rating Scale to measure success in a psychosocial day program. Psych Services. 1997, 48: 1195-1911.View ArticleGoogle Scholar
- McGorry PD, Bell RC, Dudgeon PL, Jackson HJ: The dimensional structure of first episode psychosis: an exploratory factor analysis. Psychol Med. 1998, 28: 935-947. 10.1017/S0033291798006771.View ArticlePubMedGoogle Scholar
- Baldwin P, Browne D, Scully PJ, Quinn JF, Morgan MG, Kinsella A, Owens JM, Russell V, O'Callaghan E, Waddington JL: Epidemiology of first-episode psychosis: illustrating the challenges across diagnosis boundaries through the Cavan-Monaghan study at 8 years. Schizophr Bull. 2005, 31: 624-38. 10.1093/schbul/sbi025.View ArticlePubMedGoogle Scholar
- Ford F, Durcan G, Warner L, Hardy P, Muijen M: One day survey by the Mental Health Act Commission of acute adult psychiatric inpatient wards in England and Wales. BMJ. 1998, 317: 1279-1283.View ArticlePubMedPubMed CentralGoogle Scholar
- Szymanski S, Liebermann JA, Alvir JM, Alvir JM, Mayerhoff D, Loebel A, Geisler S, Chakos M, Koreen A, Jody D, Kane J: Gender differences in onset of illness, treatment response course, and biologic indexes in first-episode schizophrenic patients. Am J Psychiatry. 1995, 152: 698-703.View ArticlePubMedGoogle Scholar
- Joffe H, Cohen LS: Estrogen, serotonin, and mood disturbance: where is the therapeutic bridge?. Biol Psychiatry. 1998, 44: 798-811. 10.1016/S0006-3223(98)00169-3.View ArticlePubMedGoogle Scholar
- Hafner H: Gender differences in schizophrenia. Psychoneuroendocrinology. 2003, 28 (Suppl 2): 17-54. 10.1016/S0306-4530(02)00125-7.View ArticlePubMedGoogle Scholar
- Lasser K, Boyd JW, Woolhandler S, Himmelstein DU, McCormick D, Bor DH: Smoking and mental illness: a population-based prevalence study. JAMA. 2000, 284: 2606-2610. 10.1001/jama.284.20.2606.View ArticlePubMedGoogle Scholar
- Salin-Pascual RJ, Alcocer-Castillejos NV, Alejo-Galarza G: Nicotine dependence and psychiatric disorders. Rev Invest Clin. 2003, 55: 677-693.PubMedGoogle Scholar
- Rossi AM, Jacobs M, Monteleone M, Obsen R, Surber RW, Winkler EL, Wommack A: Violent or fear-inducing behavior associated with hospital admission. Hosp Community Psychiatry. 1985, 36: 643-647.PubMedGoogle Scholar
- Pearson M, Wilmot E, Padi M: A study of violent behaviour among in-patients in a psychiatric hospital. Br J Psychiatry. 1986, 149: 232-235.View ArticlePubMedGoogle Scholar
- Tardiff K, Marzuk PM, Leon AC, Portera L: A prospective study of violence by psychiatric patients after hospital discharge. Psychiatr Serv. 1987, 48: 678-681.Google Scholar
- Soliman AE, Reza H: Risk factors and correlates of violence among acutely ill adult psychiatric inpatients. Psychiatr Serv. 2001, 52: 75-80. 10.1176/appi.ps.52.1.75.View ArticlePubMedGoogle Scholar
- Serper MR, Goldberg BR, Herman KG, Richarme D, Chou J, Dill CA, Cancro R: Predictors of aggression on the psychiatric inpatient service. Compr Psychiatry. 2005, 46: 121-127. 10.1016/j.comppsych.2004.07.031.View ArticlePubMedGoogle Scholar
- Wang PS, Berglund P, Kessler RC: Recent care of common mental disorders in the United States: prevalence and conformance with evidence-based recommendations. J Gen Intern Med. 2000, 15: 284-292. 10.1046/j.1525-1497.2000.9908044.x.View ArticlePubMedPubMed CentralGoogle Scholar
- Kessler RC, Demler O, Frank RG, Olfson M, Pincus HA, Walters EE, Wang P, Wells KB, Zaslavsky AM: Prevalence and treatment of mental disorders 1990 to 2003. N Engl J Med. 2005, 352: 2515-2523. 10.1056/NEJMsa043266.View ArticlePubMedPubMed CentralGoogle Scholar
- Centorrino F, Eakin M, Bakh WM, Kelleher JP, Goren J, Salvatore P, Egli S, Baldessarini RJ: Inpatient antipsychotic drug use in 1993, and 1989. Am J Psychiatry. 1998, 159: 1932-1935. 10.1176/appi.ajp.159.11.1932.View ArticleGoogle Scholar
- Tempier RP, Pawliuk NH: Conventional, atypical, and combination antipsychotic prescriptions: a 2-year comparison. J Clin Psychiatry. 2003, 64: 673-679.View ArticlePubMedGoogle Scholar
- Tognoni G: Pharmacoepidemiology of psychotropic drugs in patients with severe mental disorders in Italy. Italian Collaborative Study Group on the Outcome of Severe Mental Disorders. Eur J Clin Pharmacol. 1999, 55: 685-690. 10.1007/s002280050694.View ArticlePubMedGoogle Scholar
- Trifiro G, Spina E, Brignoli O, Sessa E, Caputi AP, Mazzaglia G: Antipsychotic prescribing pattern among Italian general practitioners: a population-based study during the years 1999–2002. Eur J Clin Pharmacol. 2005, 61: 47-53. 10.1007/s00228-004-0868-3.View ArticlePubMedGoogle Scholar
- The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1471-244X/7/3/prepub
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.