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Prevalence and correlates of suicidal behavior in primary care settings in Mozambique

Abstract

Background

This study assessed the prevalence of suicidal behavior and associated risk factors in public primary health care in Mozambique.

Methods

The Mini International Neuropsychiatric Interview was used to evaluate suicidal behavior among 502 adults attending three Primary Health Care (PHC) settings.

Results

In the past month, 13% (n = 63) of PHC attendees expressed suicidal ideation, 8% (n = 40) had made a suicide plan, 4% (n = 20) had made a suicide attempt, and 5% (n = 25) reported a lifetime suicide attempt. Females had 2.8-fold increased odds of suicide plan (95% CI: 1.5, 5.5) and 3.3-fold increased odds of suicide attempt in the past month (95% CI: 1.2, 9.1). Each 10-year increase in age was associated with 0.61-fold the odds of suicide plan (95% CI: 0.38, 0.98) and 0.09-fold the odds of suicide attempt (95% CI: 0.01, 0.69) in the past month. People living with HIV (PLWHA) had 2.2-fold increased adjusted odds of past month suicide attempt (CI: 1.1, 4.1).

Conclusion

Suicidal behaviors are common among adults attending PHC clinics in Mozambique. Screening and linkage to effective preventive interventions are urgently needed in PHC settings. Females, younger individuals, and PLWHA are at elevated risk for suicidal behavior in PHC.

Peer Review reports

Introduction

Suicide is a serious global public health issue and is among the top twenty leading causes of death worldwide, with more deaths due to suicide than malaria, breast cancer, or war and homicide [1,2,3]. The reduction of suicide mortality is an important priority of the World Health Organization (WHO) and is included as an indicator in the United Nations Sustainable Development Goals (SDGs) [4] and in the WHO Mental Health Action Plan 2013–2030 [5]. About 800,000 people die from suicide annually [6,7,8], representing a global mortality rate of 16 people per 100,000 population or one death every 40 s [6]. Due to the COVID-19 pandemic and associated mental health concerns, there is global concern that suicidal behavior may increase during and after pandemic [9]. Worldwide, suicide is the second leading cause of premature mortality in people aged 15—29 years after traffic accidents and the third leading cause for those between 15—44 years old [8, 10].

Due to stigma around suicidal behavior, estimates of suicidal behavior may be largely underestimated in some countries – especially in countries where suicide is illegal [11]. The WHO estimates that for each suicide, there are more than 20 suicide attempts. Suicide occurs globally, although 79% of all global suicides occur in low- and middle-income countries (LMICs) [12]. Rates of suicidal ideation, suicide planning and suicide attempts in the last year show significant variability across LMICs in patients attending in primary health care. One study carried out in five LMICs (India, Nepal, Ethiopia, Uganda, South Africa) found that an average of 10.3% of those who sought primary health care reported suicidal ideation in the past 12 months [13]. This study found large variability, however, with suicidal ideation ranging from 14.8% of primary care attendees in South Africa to 5.0% in Uganda. During the last 12 months, in Nepal and South Africa, younger individuals had increased prevalence of suicidal ideation and in Ethiopia and Nepal, females had double the prevalence of suicidal ideation in primary health care outpatient settings [13]. Another study on suicidal ideation in Morocco reported a rate of 5.3% per year [14]. A complicating factor in evaluating and comparing these statistics across countries is a lack of uniformity in the assessment and reporting of suicidal thoughts and behaviors. For example, a study conducted in one Kenyan general medicine outpatient facility assessed frequency of suicidal ideation and suicide attempts in the previous month instead of the previous 12. It found that the rate of suicidal ideation was 20%, suicide planning was 10%, and that 4% of participants reported a suicide attempt [15]. This creates some challenges when comparing to a study in Morocco that found 1.2% of those surveyed had attempted suicide in the previous 12 months [14].

In Mozambique, over 90% of the population receives health care through the centralized public-sector Ministry of Health system of over more 1,300 public clinics [16]. The centralized nature of the Mozambican health system presents an opportunity to integrate screening for suicidal behavioral in routine activities as a strategy for suicide prevention. In 2014, the WHO estimated Mozambique to have an age-standardized suicide rate of 27.4/100,000, which put Mozambique’s suicide rate at a significantly higher rate than the global average and made it the highest rate in Africa [8]. However, in 2019, the WHO revised this estimate to 8.4/100,000 citing concerns about “data quality” of suicide estimates for Mozambique and noted that these numbers may not be reliable. It would not be surprising if the prevalence of suicidal behavior in Mozambique were greatly elevated considering that its population has endured decades of trauma due to anti-colonial struggles (1964—1975) and another protracted war (1976 to 1992), which lead to equally protracted political instability and destruction of health systems. These historical traumas have been compounded by severe natural disasters such as cyclones Idai and Kenneth in 2019 which left hundreds of thousands of people homeless and contributed to widespread destruction of the health system [17].

Mozambique has generated limited research on suicidal behavior; a literature search uncovered only three peer-reviewed publications focused on suicide in the country. The first study conducted in legal medicine settings on deaths due to suicide in Sofala Province showed that 10% of over 1,000 violent deaths were due to suicide, with a mean age of 31 years. The most common methods were hanging (43%) followed by use of unspecified substance (28%) and use of rat poison (26%) [18]. In the same study, data on suicide attempts showed that 18% of emergency room psychiatric visits were for suicide attempts, that females represented the majority (68%), and the mean age was 27 years. The most common method for attempts was rat poison (66% of attempts) [18]. Another population-based household survey done in central Mozambique (3,060 individuals across Manica and Sofala Provinces) reported a 30-day prevalence of suicidal ideation of 5.9% [19]. The third study reported on patients with suicide attempts treated at Nampula Central Hospital from 2014 to 2016, in which more than half of the patients were aged 15—24 years old and suggested that impulsivity was the main pathway to suicidal behavior [20].

To date, there are no previous studies of suicidal behavior amongst primary care populations in Mozambique. Primary health care in this context provides a range of care, including co-located but specialized mental health services. Suicidal behavior and other mental health problems are not routinely tracked among primary healthcare attendees but instead individuals seen as needing mental health services are referred to co-located mental health specialists. The lack of integration of mental health within primary healthcare – including routine screening for suicidal behavior – constitutes a great missed opportunity for suicide prevention and treatment in Mozambique. Primary care settings are often seen as an optimal setting to screen at-risk patients for suicidal ideation and link patients to suicide prevention interventions. Identifying these high-risk individuals and providing them with follow-up care and support should be a key component of all comprehensive suicide prevention strategies evaluation of suicide prevention strategies. The aim of this study is to provide information about the prevalence of suicidal behavior and associated factors for adults attending primary care clinics in Mozambique. Information from this study can aid in the development and implementation of screening, identification, and suicide prevention interventions.

Methods

Study setting and participants

This study was conducted in Sofala Province (see Fig. 1), located in the central region of Mozambique, with a population of approximately 2.4 million. The official language is Portuguese, but the most common languages spoken in rural areas are ​​Cisena and Cindau. Sofala has a literacy rate of 56%, an infant mortality rate of 62 per 1,000 live births, a life expectancy of 57 years, and an HIV prevalence of 14% [21]. Sofala province has 166 health facilities, of which 27 (16%) have trained mental health staff. These staff include 3 Psychiatrists, 37 Clinical Psychologists, 42 Psychiatric Technicians (mid-level health professionals specialized in mental health care), 1 Social Worker, and 3 Occupational Therapist [22]. The present study was conducted across three health facilities: two in Beira City (Macurungo and Chingussura), and one in Dondo (Dondo Health Facility). Beira is the capital of Sofala Province and the second largest city in Mozambique after the national capital of Maputo. Beira City has a population of approximately 600,000 individuals with a health system comprised of 13 health facilities and 1 quaternary level Central Hospital. Dondo is the closest city to Beira (35 km), with 8 primary care health facilities serving a population of approximately 210,000 [21]. We selected the above-mentioned three facilities for this study, representative of a typical primary health care in Mozambique, because they: 1) had at least 1 psychiatric technician and 1 clinical psychologist; 2) were high-volume facilities providing general primary healthcare; 3) provided comprehensive maternal and child healthcare (to capture women in the perinatal period who may be at high risk); and 4) were generally representative of other urban and peri-urban primary care health facilities in Mozambique.

Fig. 1
figure 1

Political map of Mozambique including provincial capital cities. Focal area of Beira City and surrounding Dondo highlighted by the red box. Figure sourced from: Fernandes QF, Wagenaar BH, Anselmi L, Pfeiffer J, Gloyd S, Sherr K. Effects of health-system strengthening on under-5, infant, and neonatal mortality: 11-year provincial-level time-series analyses in Mozambique [23]

Tools and data collection

Data were collected using the Mini International Neuropsychiatric Interview (MINI 5.0-MZ) adapted to the Mozambican context [24] from the existing Brazilian Portuguese version of the MINI 5.0 [25]. The MINI 5.0-MZ includes a structured psychiatric interview for all common mental disorders and one section for suicide risk screening. The suicide screening section consists of dichotomous questions with “no” or “yes” answers, subdivided into two parts, the first referring to the assessment of suicide risk in the past month and the second part assessing suicide attempts over the lifetime. Four questions provided our primary outcome variables: (1) (C2, Suicidal Ideation) In the past month did you think you would be better off dead or wish you were dead? (Portuguese translation: durante o último mês, pensou que seria melhor estar morto ou desejou estar morto?); (2) (C5, Suicide Plan) In the past month did you make a suicide plan? (Portuguese translation: durante o último mês, pensou numa maneira de se suicidar?); (3) (C8, In the past month did you attempt suicide?) (Portuguese translation: durante o último mês, tentou o suicídio?); (4) (C9, In your lifetime did you ever make a suicide attempt) (Portuguese translation: ao longo da sua vida, já fez alguma tentativa de suicídio?).

Sociodemographic characteristics measured included: age, sex, purpose of visit (outpatient primary care; post-partum consultation; pre-natal consultation), marital status, education, self-reported income earned per month and HIV testing status (HIV positive; HIV negative; never tested). See Table 1 for detailed sub-categories of included sociodemographic variables.

Table 1 Demographic and suicidal behavior from the Mozambican adapted MINI International Neuropsychiatric Interview (MINI 5.0—MZ, Suicide Section) administered to 502 Patients in primary care settings in Sofala, Mozambique

Patients were recruited from the consultation waiting room of pre-natal, post-partum, and general outpatient consultations from October 2018 to February 2019. While in the waiting room, a trained Health Alliance International research assistant gave a presentation to all individuals sitting in the room and asked them if they would be willing to participate in the study. The research assistant directed interested individuals to a private consultation room to administer the consent form and the short sociodemographic survey in RedCap. Inclusion criteria were 18 years of age or over and agreeing to participate in the study by signing an informed consent form; those who could not read had the consent form read to them. Patients were excluded if they had an acute health condition, a disability impeding their ability to complete the survey, or were less than 18 years of age. Following the sociodemographic survey, a trained Ministry of Health mental health professional (psychologist or psychiatric technician) administered the adapted MINI 5.0-MZ.

Data analysis procedures

We calculated the prevalence for four key outcomes including: (1) Suicidal ideation in the past month; (2) Suicidal plan in the past month; (3) Attempted suicide in the past month; and (4) Lifetime attempted suicide. Regression analyses examined unadjusted (OR) and adjusted odds ratios (aOR) obtained by including all sociodemographic variables simultaneously in one model for each primary outcome. Standard errors were adjusted for clinic clustering using the clustered sandwich estimator. Analyses were conducted using Stata 15 and significance was set at a two-sided alpha value of 0.05.

Results

Sociodemographic characteristics

The total number of participants approached was 536, 33 (6.2%) declined to participate, and 1 (0.19%) was excluded due to having age less than 18 years old. As described in Table 1, the majority of the 502 participants were female (74%), with a mean age of 28. Regarding marital status, most of the sample was in a civil union (71%, n = 355). Twenty percent were single (20%, n = 100). More than half (59%, n = 295) of patients had either some high school or had finished high school. The average income per month in US Dollars was $117, which is very high relative to the gross domestic per capita per month of $47 in Mozambique as would be expected given the urban and peri-urban setting, relative to rural settings [26]. Overall, 28% (n = 140) of the sample reported testing HIV + , with only 5% (n = 27) reporting having never been tested for HIV.

Prevalence and correlates of suicidal ideation in the past month

The overall prevalence of suicidal ideation in the past month was 12.5% (Table 1). Compared to those attending outpatient primary care visits, those attending post-partum consultations were about 68% less likely to report suicidal ideation in the past month (aOR = 0.32; 95% CI: 0.16—0.65) and those attending pre-natal consultations were about 87% less likely (aOR = 0.13; 95% CI: 0.05—0.35). Women had an elevated but not statistically significant adjusted odds ratio for increased odds of suicidal ideation compared to men (aOR = 2.59; 95% CI: 0.94 – 7.20). Those with a post-graduate education had 50% lower odds of suicidal ideation (aOR = 0.50; 95% CI: 0.39—0.64). Those who had never been tested for HIV had 58% lower odds of reporting suicidal ideation (aOR = 0.42; 95% CI: 0.19—0.89) (Table 2).

Table 2 Correlates of Demographic and Suicidal Ideation (Past Month) Suicidal Plan (Past Month) of Mozambican adapted MINI International Neuropsychiatric Interview (MINI 5.0—MZ, Suicide Section) administered to 502 Patients in primary care settings in Sofala, Mozambique

Prevalence and correlates of suicidal plan in the past month

The overall prevalence of making a suicide plan in the past month was 8.0% (n = 40) (Table 1). Younger individuals had higher odds of a suicide plan in the past month: each 10-year increase in age was associated with 0.61-fold decreased odds in reporting having made a suicide plan (aOR = 0.61; 95% CI: 0.38—0.98). Eighty-seven percent of individuals aged 18–24 who reported suicidal ideation in the past month had made a suicide plan (20/23). Females had 2.8 times the odds of suicide plan in the past month compared to men (aOR = 2.82; 95% CI: 1.45—5.51). Compared to those patients attending outpatient primary care, those attending post-partum consultations or pre-natal consultations had about 91% (aOR = 0.09; 95% CI: 0.06—0.14) and about 87% (aOR = 0.13; 95% CI: 0.02—0.77) lower odds of reporting suicide plan in the past month, respectively (Table 2).

Prevalence and correlates of attempted suicide in the past month

As described in Table 1, the overall prevalence of a suicide attempt in the past month was 4.0% (n = 20). Older individuals had significantly lower odds of a suicide attempt in the past month. Each 10-year increase in age was associated with 91% decreased odds of reporting a suicide attempt in the past month (aOR = 0.09; 95% CI: 0.01–0.69). Fifty-six percent of those aged 18–24 who reported suicidal ideation in the past month had made a suicide attempt in the past month (13/23) and 65% of those with a suicide plan had made a suicide attempt in the past month (13/20). Females had 3.26 times the odds of suicide attempt in the past month (aOR = 3.26; 95% CI: 1.17 – 9.07). Compared to those patients attending outpatient primary care, those attending post-partum consultations or pre-natal consultations had 96% (aOR = 0.04; 95% CI: 0.01—0.27) and 98% (aOR = 0.02; 95% CI: 0.01—0.19) lower odds of suicide plan in the past month, respectively. Individuals reporting to be formally married had 5.5 times the odds of suicide attempt (aOR = 5.5; 95% CI: 3.6–8.5). Each 50 USD per month earned was associated with 12% increased odds of reporting a suicide attempt (aOR = 1.12; 95% CI: 1.08 – 1.15). Individuals testing positive for HIV had 2.2 times the odds of reporting a suicide attempt in the past month (aOR = 2.2; 95% CI: 1.14 – 4.09) (Table 3).

Table 3 Correlates of Demographic and Suicide Attempt in the Past Month, Suicide Attempt in the Lifetime of Mozambican adapted MINI International Neuropsychiatric Interview (MINI 5.0-MZ, Suicide Section) administered to 502 Patients in primary care settings in Sofala, Mozambique

Prevalence and correlates of lifetime attempted suicide

As described in Table 1, the overall prevalence of lifetime suicide attempts was 5.0% (n = 25). Compared to those patients attending outpatient primary care, those attending post-partum consultations had 90% lower odds of lifetime suicide attempt (aOR = 0.10; 95% CI: 0.01 – 0.92). Females had an elevated point estimate but not statistically significant increased odds of lifetime suicide attempt (aOR = 2.9; 95% CI: 0.88 – 9.8). Compared to those who had some high school, those who finished primary, finished high school, or had post graduate education had elevated odds of lifetime suicide attempt (Table 3).

Discussion

Suicidal behavior appears to be common among primary care attendees in Mozambique. Overall, one in every eight (12.5%) patients expressed suicidal ideation in the past month. This increased to one in five (18.8%) among patients attending outpatient primary care. Sixty three percent of those with suicidal ideation in the past month had made a suicide plan (40/63) and 50% of those who had a suicide plan had made a suicide attempt in the past month (20/40). These numbers were particularly elevated when considering younger individuals aged 18–24. Over 85% of individuals aged 18–24 who had suicidal ideation made a suicide plan (20/23) and 65% who made a suicide plan made a suicide attempt (13/20). Together, these data show the opportunity for intervening in the prevention of suicide attempts, especially for younger individuals attending primary care visits in Mozambique. While lower than outpatient primary care, those attending post-partum consultations and pre-natal consultations still had high rates of suicidal ideation at 10% (14/138) and 5% (7/140) of attendees, respectively. In terms of high-risk groups for suicidal behavior in primary care, our study identified younger individuals, females, individuals attending outpatient primary care, and people living with HIV/AIDS at increased risk of suicidal behavior. These high rates of suicidal behavior among primary care patients – including suicide attempts – highlights the urgent need to integrate screening and effective prevention approaches for suicidal behavior into primary care.

The rates of suicidal ideation in the past month among primary care attendees in the present study (12.5%; 63/502) are similar [13] to a recent study in Kenya finding past month suicidal ideation of 20%, suicide plan of 10%, and suicide attempt of 4% [15]. Comparing our findings to previous community-level samples, the present study suggests that suicidal ideation may be over twice as prevalent among primary care attendees compared to the general population in community settings in Mozambique [19] as observed in high income countries (HICs) [27]. The risk factors of female gender, younger age, and being positive for HIV for suicidal behavior are in line with previous cross-national studies in LMICs [13, 28, 29]. Another study done in China found that PLWHA are at increased risk for suicidal ideation, especially when those patients present with depression, low self-esteem, and poor social support [30]. In another study done in an African country, PLWHA who were unmarried, unemployed, with HIV status non-disclosure were more at risk for presenting suicidal ideation [31].

The dramatically increased risk for suicidal ideation to progress to suicide plan and suicide attempt among younger individuals in our setting bears additional mention. While individuals aged 18–24 made up only 37.8% of our sample (190/502), they accounted for 50% of suicide plans made (20/40), and 65% of suicide attempts (13/20). The fact that 56% of individuals aged 18–24 with suicidal ideation in the past month also attempted suicide in the past month shows the potential for early and frequent screening for suicidal ideation in primary care as a potential avenue for preventing suicide attempts and deaths. In addition, individuals living with HIV were not over-represented in terms of suicidal ideation compared to our overall sample – however – of those individuals living with HIV who did express suicidal ideation in the past month, 60% had made a suicide plan and 67% of those with a suicide plan had attempted suicide in the past month (Table 1). Thus, the integration of screening for suicidal ideation for PLWHA in Mozambique and the recognition that without linkage to effective care over 40% of these individuals may go on to attempt suicide within the next month should be considered an urgent priority. This result is in line with the findings found in a Chinese study where suicidal ideation was very common in PLWHA and emphasizing the need for early screening for this problem in this high-risk group and urgent provision of adequate psychosocial support [30].

The present study is not without its limitations. First, this study was conducted in three primary care health centers in the central region in Mozambique and thus may not generalize to other regions in Mozambique. Second, our study sampling method recruited willing participants from primary care waiting rooms and thus was a sample of convenience. Notwithstanding these limitations, our study has a number of notable strengths. To our knowledge this is the first evaluation of suicidal behavior among primary care attendees in Mozambique. Patients were sourced from routine primary care centers run by the Ministry of Health which constitute usual care for general clinical care in the country. We utilized a structured clinical questionnaire adapted to the local context and delivered by local Mozambican psychologists and psychiatric technicians working at the primary care centers of interest, thus increasing the quality of the data.

Conclusion

In this study suicidal behavior was common among individuals seeking primary healthcare in Mozambique. Females, younger individuals, and people living with HIV may be at particularly elevated risk for suicidal behavior in this context. Younger individuals made up only 38% of the sample yet represented 65% of suicide attempts. Our finding that over 56% of individuals aged 18–24 reporting suicidal ideation in the past month had a suicide attempt shows the urgent need to provide routine screening for suicidal ideation during primary care contacts and link individuals to effective prevention interventions. The Ministry of Health in Mozambique should focus on strategies for integrating suicide screening and prevention activities in primary healthcare and could focus specific efforts on younger individuals, women, and those living with chronic illnesses such as HIV/AIDS.

Availability of data and materials

The datasets used and/or analyzed during the current study are available from Health Alliance International, Mozambique under reasonable request addressed to corresponding author Vasco FJ Cumbe (vcumbe@gmail.com) or to Bradley H. Wagenaar (wagenaarb@gmail.com).

Abbreviations

AIDS:

Acquired Immunodeficiency Syndrome

aOR:

Adjusted Odds Ratio

CI:

Confidence Interval

HIV:

Human Immunodeficiency Virus

INE:

Instituto Nacional de Estatística (National Institute of Statistician)

LMICs:

Low-and Middle-Income Countries

MINI:

Mini International Neuropsychiatric Interview

OR:

Odds Ratio

HIC:

High Income Countries

PHC:

Primary Health Care

PLWHA:

People Living With HIV

SA:

Suicide Attempt

SDGs:

Sustainable Development Goals

SI:

Suicidal Ideation

SP:

Suicidal Plan

SD:

Standard Deviation

MZ:

Mozambique

N/A:

Not Applicable

WHO:

World Health Organization

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Acknowledgements

The authors would like to thank the Beira and Seattle Health Alliance International team for their support in coordinating the implementation of the study and the Beira / Dondo Mental Health Ministry of Health teams for their support in the fieldwork.

Funding

This work was supported by grant number K01MH110599 and D43TW009675 from the National Institute of Mental Health. The content of this paper is solely the responsibility of the authors and does not represent the official views of the National Institutes of Health.

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BHW and VFJC conceived the idea, led the organization of the study and data collection. AM supervised data collection in health facilities with input from NM, BHW, and VFJC. LH helped with overall study coordination. All authors contributed to writing the paper and provided critiques and scientific input. BHW led the analyses, with input from DLA, VFJC. VFJC wrote the first version of the paper with support from BHW and all other authors. All authors have read and approved the final version of this manuscript.

Corresponding author

Correspondence to Vasco F. J. Cumbe.

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Ethics approval and consent to participate

This study was approved by the institutional review boards at the University of Washington and the Mozambican National Committee of Bioethics in Health, Ministry of Health (CNBS) with registration IRB00002657. The study participants were informed about the objectives of the study and written informed consent was received from each participant. All methods were carried out in accordance with relevant guidelines and regulations.

Consent for publication

Not applicable.

Competing interests

Dr. Oquendo receives royalties from the Research Foundation for Mental Hygiene for the commercial use of the Columbia Suicide Severity Rating Scale and owns shares in Mantra, Inc. She serves as an advisor to Alkermes, Otsuka, ATAI, St. George’s University and Fundacion Jimenez Diaz. Her family owns stock in Bristol Myers Squibb. The other authors report no conflict of interest.

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Cumbe, V.F.J., Manaca, M.N., Atkins, D.L. et al. Prevalence and correlates of suicidal behavior in primary care settings in Mozambique. BMC Psychiatry 22, 423 (2022). https://doi.org/10.1186/s12888-022-04059-y

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Keywords

  • Suicidal behavior
  • Suicidal ideation
  • Suicidal plan
  • Suicide attempt
  • Primary health care
  • Mozambique