Skip to main content

Table 1 Characteristics of the study population after matching for age, sex, and psychiatric diagnosis, and results of chi-square-tests/t-tests (suicide cases versus controls)

From: Are quantity and content of psychiatric interventions associated with suicide? A case-control study of a Swedish sample

  Suicide cases n = 101 Men4 Controls n = 101
Men4
Suicide cases n = 53 Women4 Controls n = 53
Women4
All suicide cases n = 154 All controls
n = 154
Test statistic, p
Mean age: years (SD5)
Range
45.9 (17.6)
18–84
45.9 (17.4)
17–84
49.6 (16.4)
13–96
49.4 (15.5)
13–85
47.1 (17.2)
13–96
47.1 (16.8)
13–85
t: −0.040, p = .976
Educational level1,8 n (%)        χ2: 4.085, df 2, p = .137
 Low 28 (27.7) 44 (43.6) 15 (28.3) 16 (30.8) 43 (27.9) 60 (39.0)  
 Medium 54 (53.5) 42 (41.6) 25 (47.2) 25 (48.1) 79 (51.3) 67 (43.5)  
 High 18 (17.8) 14 (13.9) 11 (0.8) 11 (21.2) 29 (18.8) 25 (16.2)  
Occupational status8 n (%)        χ2: 0.14, df 1, p = .717
 Employed 37 (36.6) 29 (28.7) 12 (22.6) 17 (32.1) 49 (32.0) 46 (30.1)  
 Unemployed 64 (63.4) 72 (71.3) 40 (75.5) 35 (66.0) 104 (67.5) 107 (69.5)  
Family status8 n (%)        χ2: 3.23, df 3, p = .367
 Cohabiting with partner (no children) 12 (11.9) 12 (11.9) 8 (15.1) 11 (20.8) 20 (13.0) 23 (14.9)  
 Cohabiting with partner and children 14 (13.9) 20 (19.8) 4 (7.5) 8 (15.1) 18 (11.7) 28 (18.2)  
 Single parent with children 11 (10.9) 5 (5.0) 5 (9.4) 8 (15.1) 16 (10.4) 13 (8.4)  
 Living alone 64 (63.4) 64 (63.4) 35 (66.0) 25 (47.2) 99 (64.3) 89 (57.8)  
Diagnoses used for matching2 n (%)
Depressive disorders
(F32–F33, F34.1)
27 (26.7) 28 (27.7) 242 (45.3) 24 (45.3) 51 (33.1) 52 (33.8) χ2: 0.047, df 7, p = 1.007
Mental and behavioural disorders due to psychoactive substance use (F10–F19) 28 (27.7) 28 (27.7) 5 (9.4) 5 (9.4) 33 (21.4) 33 (21.4)  
Neurotic, stress-related, and somatoform disorders (F40–F48) 13 (12.9) 13 (12.9) 8 (15.1) 8 (15.1) 21 (13.6) 21 (13.6)  
Schizophrenia, schizotypal, and delusional disorder (F20–29) 9 (8.9) 9 (8.9) 5 (9.4) 5 (9.4) 14 (9.1) 14 (9.1)  
Disorder of adult personality and behaviour (F60–F69) 7 (6.9) 7 (6.9) 4 (7.5) 42 (7.5) 11 (7.1) 11 (7.1)  
Bipolar disorder (F31) 32 (3) 3 (3) 4 (7.5) 4 (7.5) 7 (4.5) 7 (4.5)  
Disorder of psychological development / behavioral and emotional disorders (F80–89, F90–98) 3 (3) 3 (3) 0 0 3 (1.9) 3 (1.9)  
Psychiatric examination3 11 (10.9) 10 (9.9) 3 (5.7) 3 (5.7) 14 (9.1) 13 (8.4)  
  1. 1 Low: elementary school or grade 1–9; Medium: high school or other education below university level; High: university or university college
  2. 2 Diagnoses were mental and behavioural disorders referring to chapter V in the International Statistical Classification of Diseases, 10th Revision classifications (ICD-10)
  3. The diagnoses were registered as primary diagnoses in all but two cases and one control, where the secondary diagnoses were used (see 2 in the suicide case and control columns above)
  4. 3 Persons who received psychiatric care without being assigned a primary psychiatric diagnosis
  5. 4 A comorbid diagnosis of psychoactive substance use (F10-F19) was present in 22 patients (five male and seven female suicide cases; five male and five female controls)
  6. 5 SD = standard deviation
  7. 6 Results from Independent Samples t-test
  8. 7 Results from Pearson Chi-Square Tests
  9. 8 Number of patients with missing data: educational level: 5, occupational status: 2, family status: 2