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BMC Research Notes

, 12:394 | Cite as

The prevalence and correlates of common mental disorders among prisoners in Addis Ababa: an institution based cross-sectional study

  • Alemseged Solomon
  • Getnet Mihretie
  • Getachew TesfawEmail author
Open Access
Research note
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Abstract

Objective

About one in seven prisoners is diagnosed with common mental disorders whose global prevalence ranges from 13 to 92.5%. The problem negatively affects the physical, psychological, and social well-being of prisoners. However, research into common mental disorders and associated factors among prisoners in low and middle-income countries has been limited. Therefore, this study aimed to explore the common mental disorders and associated factors among prisoners in Ethiopia to contribute the attempt to ensure optimal care for prisoners.

Results

The prevalence of common mental disorders among prisoners was found to be 58.4% [95% CI 53.70, 63.00]. In the multivariable logistic regression, poor social support [AOR = 2.4, 95% CI 1.16, 4.85], economic crisis [AOR = 3, 95% CI 1.84, 4.85], secondary school education [AOR = 2.3, 95% CI 1.04, 5.20], unemployment before arrest [AOR = 1.7, 95% CI 1.04, 2.80], and history of psychiatric illness [AOR = 4.3, 95% CI 1.21, 15.56] were factors significantly associated with the problem.

Keywords

Common mental disorder Prisoner Correctional Institution 

Abbreviations

AOR

adjusted odds ratio

CMD

common mental disorders

CIDI

composite international diagnostic interview

OR

odds ratio

SRQ

Self Reporting Questionnaire

WHO

World Health Organization

UOG

University of Gondar

Introduction

Common mental disorder (CMD) is a term used to describe a group of mental disorders that frequently include depression, anxiety, and somatoform which are highly prevalent in low and middle-income countries [1, 2, 3]. According to estimation, over 450 million people in the world suffer from some form of mental disorder and one in four whom met the criteria in their lives have had mental disorders [1, 4].

The prevalence of the CMD which is 14% today, is predicted will rise to 15% by 2020, becoming the second leading cause of ill health in low-income countries [5, 6]. Over 10.2 million people held in penal institutions with restricted freedom, autonomy, and communication with their families have their physical, psychological, and social well-being affected throughout the world [6, 7]. The magnitude of CMD is higher among prisoners than in the general public [8, 9, 10]. Common mental disorders which may be present before arrest might be further aggravated after imprisonment [3, 6].

Many prisoners, at least one CMD and nearly one in seven of those have such history, suffering from CMDs [11, 12]. The overall magnitude, of CMD among prisoners ranges from 13 to 92.5% [11, 13]. In addition to imprisonment, the variety of other factors, like the prison environment, educational status, overcrowding, crime type, term of sentence and isolation from social networks have roles in the development of CMDs [1, 6, 8, 14].

Evidence suggests that the presence of mental illness among prisoners contributes to an increased in the risk of suicide, violence, morbidity, and mortality [1, 10, 12]. Prisoners who have psychiatric disorders need to have access to mental health treatment and support at all stages of criminal justice [15]. Timely identification, treatment, and rehabilitation are almost missing in many prisons, particularly in developing countries [6]. However, research into common mental disorders and associated factors among prisoners in low and middle-income countries is limited. Therefore, this study aimed to assess the prevalence and associated factors of common mental disorders among prisoners in the correctional institution in Ethiopia with a view of informing the development of interventions.

Main text

Methods

Study setting and design

An institution-based cross-sectional study was conducted at Addis Ababa correctional centers from May to June 2015, Addis Ababa, Ethiopia.

Study population

All sampled prisoners with jailed at Addis Ababa correctional centers were excluded. Prisoners critically ill were excluded.

Sampling procedures

The sample size was determined by using the single population proportion formula with the assumptions of 35.5% prevalence of CMD from a study conducted in Southwest Ethiopia, Jimma [16], with 95% CI, and a 4% margin of error. Assuming a 10% non-response rate, 452 prisoners were recruited randomly by using the systematic sampling technique. The sampling interval was determined by dividing the total study population by the total sample size; then, the starting point was randomly selected.

Data collection

Data were collected using a pre-tested, interviewer-administered questionnaire which contained CMD, socio-demographic characteristics, clinical, and prison-related factors. We used a face to face interviewer administered questionnaire to collect data. Common mental disorders were measured by using Self Reporting Questionnaires-20 (SRQ-20), developed by the World Health Organization to screen CMD in primary health care settings in low-income countries [17]. However, owing to high illiteracy rate in Ethiopia and other countries of the same status, the tool was used in an interview format, validated and subsequently used for epidemiological, clinical and community settings in the country. The scales used as cutoff scores for CMD were ≥ 8 [17].

Social support was assessed by the Oslo 3-item social support scale which had a 3-item questionnaire commonly used to assess social support and used in several studies. The sum score scale ranges from 3 to 14 with three broad categories: “poor support” 3–8, “moderate support” 9–11, and “strong support” 12–14 [18].

Data were entered into Epi-info 7 software after checking for completeness and transferred to the statistical package for social sciences version 20 for analysis. Bi-variable and multivariable logistic regression analyses were done to see the association of each independent variable with the outcome variable. The strength of the association was evaluated using the adjusted odds ratio with a 95% CI, and less than 0.05 P-values were considered statistically significant.

Results

Socio-demographic characteristics

A total of 452 respondents took part with a response rate off 98.9%. The mean age of the respondents was 26 (± 10) years; almost half (50.1%) were female, 171 (38.3%) were single, and 303 (67.8%) were between the ages of 18 and 27 years (Table 1).
Table 1

Distribution of prisoners by socio-demographic characteristics at Addis Ababa correctional center, Addis Ababa, Ethiopia, in 2015 (n = 447)

Variables

Categories

Frequency

Percent

Sex

Male

223

49.9

Female

224

50.1

Age in years

18–27

303

67.8

28–37

83

18.6

38–47

40

8.9

48–57

15

3.3

≥ 58

6

1.5

Marital status

Single

301

67.3

Married

98

21.9

Othersa

48

10.8

Religions

Orthodox

334

74.7

Muslim

56

12.5

Protestant

49

11.0

Othersb

8

1.8

Ethnicity

Amhara

206

46.1

Oromo

95

21.1

Tigray

84

18.9

Othersc

64

13.9

aDivorce, widowed

bJobba, Catholic

cGurage, afar, and Somali

Psychosocial characteristics

Of the participants, 48.8% had poor social support; only 65 (14.5%) had chronic physical illnesses; 29 (6.5%) were diagnosed with psychiatric illnesses, and 23 (5.1%) were convicted once (Table 2).
Table 2

Distribution of psychosocial factors of prisoners at Addis Ababa correction center, Addis Ababa, Ethiopia, in 2015 (n = 447)

Variables

Categories

Frequency

Percent

Social support

Poor

218

48.8

Moderate

162

36.2

Strong

67

15.0

Having a chronic physical disease

Yes

65

14.5

No

382

85.5

Seriously illness, injury or assault of a prisoner in last 6 months

Yes

93

21.0

No

353

79.0

Death of relative in the last 6 months

Yes

37

8.3

No

410

91.7

Break up of friendship or relationship in the last 6 months

Yes

77

17.2

No

370

82.8

The financial crisis in the last 6 months

Yes

268

60.0

No

179

40.0

Ever diagnosis psychiatric illness

Yes

29

6.5

No

418

93.5

A family history of mental illness

Yes

38

8.5

No

409

91.5

Problem with police/court in the last 6 months

Yes

73

16.3

No

374

83.7

No job before arrested

Yes

204

45.6

No

243

54.4

Suffered from violence in the last 6 months

Yes

63

14.1

No

384

85.9

Ever convicted

Yes

29

6.5

No

418

93.5

How often do you convict

Once

23

5.1

Twice

2

0.4

≥ 3 times

3

0.7

Prisoner characteristics

More than half (55%) of the study participants were accused of shoplifting, and for 233 (52.1%) the length of sentences were from 1 to 3 years duration. Over two in five (43.2%) have stayed in prison for 1 to 3 years (Additional file 1).

Prevalence of CMD among prisoners

This study revealed that the prevalence of CMD among the study participants was found to be 58.4% with 95% CI (53.7, 63.0) (Additional file 2).

Factors associated with CMD

Among all explanatory variables, poor social support, educational status, history of psychiatric illness, and economic crisis had less than 0.2 P value in the bi-variable logistic regression considered as the multivariate logistic regression model.

The multivariate analysis suggested that poor social support was about 2.4 times more risky for CMD compared to patients with good social support (95% CI 1.16, 4.85). Economic crises in the last 6 months was 3.95 times (95% CI 1.84, 4.85) more likely to lead to CMDs compared to its absence.

Similarly, secondary school education was two times (95% CI 1.04, 5.20) more likely to lead to CMD compared to tertiary level of graduates, and the odds of CMD increased by 1.7 times (95% CI 1.04, 2.80) for participants who had no jobs before arrest compared their counterparts. The odds of developing CMD were 4.3 times (95% CI 1.21, 15.56) higher among participants who had history of mental illness compared with those who had such no history (Table 3).
Table 3

Factors associated with common mental disorders among prisoners in Addis Ababa correctional center, Addis Ababa, Ethiopia, in 2015. (n = 447)

Variables

Categories

Common mental disorder

COR, 95% (CI)

AOR, 95% (CI)

Yes

No

Level of educational

Illiterate

37

17

2.96 (1.37, 6.41)

2.34 (0.87–6.32)

Primary

116

89

1.78 (0.99, 3.18)

1.5 (0.70–3.38)

Secondary

83

46

2.45 (1.31, 4.61)

2.3 (1.04, 5.20)*

Above tertiary

25

34

1:00

1:00

Social support

Poor

147

71

3.1 (1.74, 5.40)

2.4 (1.16, 4.85)**

Moderate

87

75

1.72 (0.96, 3.10)

1.8 (0.80–3.17)

Strong

27

40

1:00

1:00

Financial crisis

No

67

112

1:00

1:00

Yes

194

74

4.4 (3.00, 6.57)

3 (1.84, 4.85)***

Job before arrested

Yes

117

126

1:00

1:00

No

144

60

2.6 (1.75, 3.83)

1.7 (1.04, 2.80)*

Ever diagnosed psychiatric illness

No

236

182

1:00

1:00

Yes

25

4

(1.64, 14.10)

4.3 (1.21, 15.56)*

Significant association (* P-value < 0.05, ** P-value < 0.01 and *** P-value < 0.001), n = sample size P-value for Hosmer and Lemeshew test = 0.56 common mental disorder

Discussion

In the current study, the prevalence of common mental disorders and its possible association with various factors was assessed. The results showed that a remarkable proportion of prisoners had common mental disorders. The prevalence of CMDs among prisoners was found to be 58.4%. Regarding prevalence, our result is consistent with those of other studies carried out in South Africa, Nigeria, Zambia, Brazil, and Iran where it was estimated at 55.4%, 57%, 63.1%, 56.1%, and 57%, respectively [9, 19, 20, 21, 22].

On the other hand, our finding far higher than those of studies did in two areas of Ethiopia, Kenya, and Iran and reported 35.5, 50, 28.9, and 43.4%, respectively [8, 14, 16, 23]. The variation might be due to distinctions in the sample sizes, measurement tools, and the socio-culture distinctions between Ethiopia and the other counties.

In Dilla (south Ethiopia), Jimma (southwest Ethiopia), and Iran, a clinical outcomes, and the symptoms check list-90-revised questionnaire were utilized to screen and assess CMDs among prisoners, respectively [8, 14, 16]. On top of that, crime type and length of sentences could be considered as sources of variations.

The present study finding was lower than those of studies done in Egypt, the United States, South Wales, Australia, Iran, and Pakistan where the magnitude was estimated at 81.5%, 70%, 74%, 80%, 88%, and 85%, respectively [12, 20, 24, 25, 26, 27]. The discrepancy might be due to measurement tools and sample sizes. In Egypt, 88 prisoners were included in the study to assess depression and anxiety disorders [12]. In Australian, 916 prisoners were studied using the Composite International Diagnostic Interview (CIDI) to test psychiatric illnesses [25], but in the US taking the global severity index of the brief symptom inventory was employed to assess psychiatric disorders [21]. More than twice as many participants of the current study were enrolled in South Wales to assess common mental illnesses by using CIDI among prisoners [20]. In Iran, the fourth edition of the diagnostic and statistical manual criteria was put to use to assess a lifetime diagnosis of psychiatric disorders among prisoners [22], and in Pakistan the beck depression inventory scale was used to test depression in people [24].

Regarding factors, CMDs were 2.3 times higher among respondents who had secondary school education compared to prisoners who had above tertiary level education. This finding supported by that of study done in the southern parts of Ethiopia [14].

Poor social support was 2.4 times more likely to develop CMD compared with good social support. The reason might be that poor social support is one cause of mental illness which affects the treatment outcomes of the problem.

Economic crises in the last 6 months were three times more likely to be a risk factor for CMD compared to situations with such crises. The reason might be that serious economic crises and financial problems are major socioeconomic risk factors for mental health disorders. Such crisis among prisoners contributes to declining quality of life, depression, suicide, and homicide.

Prisoners who were not employed before arrest were 1.7 times more likely to develop CMD than prisoners who had jobs. Unemployment is one of the factors for mental illnesses lead prisoners to CMD and repeated arrests. This finding is consistent with that of a study done in Nigeria [22].

Finally, history of psychiatric illness was 4.3 times more likely to cause CMD compared with such no history. This result is consistent with that of a study done in Egypt [12]. The reason might be that just like antisocial personality disorder, substance use disorder, and history of mental illnesses are strongly associated with criminals in that such history may aggravate CMDs during imprisonment.

Conclusion

In study, the overall magnitude of common mental disorder was 58.4%. Poor social support, economic crisis in the last 6 months, history of mental illness, secondary level education, and unemployment before arrest were significantly associated with common mental disorders.

Limitations

A cross-sectional study design, we cannot permit conclusions about some variables, for example, about deciding whether common mental disorder symptoms are at risk or a consequence. This finding of this work is likely only to hint at the complex interactions between CMDs and explanatory variables. Further research should be conducted on risk factors for CMDs to strengthen and broaden our results.

Notes

Acknowledgements

The authors acknowledge Amanuel Mental Specialized Hospital, Ethiopia, for funding the study. The authors appreciate the respective study institutions and the study participants for their cooperation in providing the information.

Authors’ contributions

AS conceived the study and involved in the study design, reviewed the article, analysis, report writing and drafted the manuscript GM, and GT also involved in the study design, analysis and drafted the manuscript. All authors read and approved the final manuscript.

Funding

The study was funded by the University of Gondar and the funders only involved by giving the funding for the design of a study, data collection, analysis, and interpretation only.

Ethics approval and consent for participant data

Ethical clearance was obtained from the Institution of Review Board of the University of Gondar and Amanuel Mental Specialized Hospital. After approval, a formal letter of permission was obtained from Amanuel Mental Specialized hospital. All prisoners were given information sheets and were included in the study only after they provided written consents. Confidentiality of information was maintained by using anonymous copies. Participants who had severe CMDs were considered for linking them with psychiatrists for further interventions and treatment.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

Supplementary material

13104_2019_4425_MOESM1_ESM.docx (12 kb)
Additional file 1. Distribution of criminal and prison-related characteristics of prisoners in Addis Ababa correctional center, Addis Ababa, Ethiopia, in 2015. (n = 447).
13104_2019_4425_MOESM2_ESM.docx (14 kb)
Additional file 2. Prevalence of common mental disorders among prisoners in Addis Ababa correctional center, Addis Ababa, Ethiopia, in 2015. (n = 447).

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Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

Authors and Affiliations

  • Alemseged Solomon
    • 1
  • Getnet Mihretie
    • 2
  • Getachew Tesfaw
    • 2
    Email author
  1. 1.Department of Non-communicable DiseasesAddis Ababa Correctional InstitutionAddis AbabaEthiopia
  2. 2.Department of Psychiatry, College of Medicine and Health SciencesUniversity of GondarGondarEthiopia

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