The Shona Symptom Questionnaire: the development of an indigenous measure of common mental disorders in Harare

Cultural factors and international epidemiology

The debate on the role of culture on psychiatric epidemiology has evolved considerably in the past two decades. There is now a general consensus that the integration of the universalist and culturally relativist approaches, and their methodologies, is required to generate a truly international psychiatric epidemiology. The large body of research investigating the influence of culture on the epidemiology of depression has produced a number of key findings: the clinical presentation of depression in all cultures is associated with multiple somatic symptoms of chronic duration; psychological symptoms, however, are important for diagnosis and can be easily elicited. The diagnostic differentiation between depression and anxiety in general health care settings is not clinically valid. Culturally appropriate terminology for depression can be identified and their use may improve levels of recognition and treatment compliance. It is also evident that culture is only one factor in the difference between, and within, human societies which has a bearing on the epidemiology of depression. Other factors, which may interact with culture, such as gender and income inequality, are major risk factors for depression. Future international research must focus on two themes: (i) intervention studies including cost-effectiveness outcomes; and (ii) research aiming to bridge the gap between regional public health priorities and the concern that psychiatrists have about depression.

Women, poverty and common mental disorders in four restructuring societies

BACKGROUND

Poverty and female gender have been found to be associated with depression and anxiety in developed countries. The rationale behind this paper was to bring together five epidemiological data sets from four low to middle income countries to examine whether key economic and development indicators such as income and poor education, and female gender, were associated with common mental disorders.

METHOD

The paper is based on five datasets: three based on primary care attenders in Goa, India; Harare, Zimbabwe and Santiago, Chile; and two based on community samples in Pelotas, Brazil and Olinda, Brazil. All five studies estimated prevalence of common mental disorders along with variables to measure economic deprivation and education.

FINDINGS

In all five studies, female gender, low education and poverty were strongly associated with common mental disorders. When income was divided into tertiles, with the lowest tertile as a reference value, there was a significant trend for reduced morbidity for the lower two tertiles.

DISCUSSION

These findings have considerable implications since the rapid economic changes in all four societies have been associated with rising income disparity and economic inequality. Examples of population based prevention strategies based on increasing the proportion of those who complete schooling and on high-risk strategies such as providing loan facilities to the impoverished are potential outcomes of these findings. Development agencies who focus on women as a priority group have failed to recognize their unique vulnerability to common mental disorders and need to reorient their priorities accordingly.

Predicting postnatal mental disorder with a screening questionnaire: a prospective cohort study from Zimbabwe

BACKGROUND

Postnatal mental disorders are common causes of morbidity but are rarely diagnosed or treated in busy primary care clinics in developing countries.

OBJECTIVE

To determine whether a brief psychiatric screening questionnaire used in the 8th month of pregnancy can predict postnatal mental disorder.

STUDY DESIGN

Prospective cohort study. SITE: A peri-urban settlement in Zimbabwe.

POPULATION

500 women in the 8th month of pregnancy identified by traditional birth attendants and primary care clinics.

SAMPLE

"High risk" cohort consisted of all women who scored 8 or more on the Shona Symptom Questionnaire (SSQ), an indigenous psychiatric questionnaire (n = 95). Low risk cohort consisted of 105 women randomly selected from the remainder of the sampling frame.

OUTCOME MEASURE

Revised Clinical Interview Schedule at six to eight weeks postpartum; scores of 14 or more indicate psychiatric caseness.

RESULTS

The prevalence of postnatal mental illness was 16%. Odds ratios (95% confidence intervals) for high risk women becoming cases in the postnatal period were 10.6, 4.8, 23.9, p < 0.0001 after adjustment for age, marital status, and occupation.

CONCLUSIONS

A brief method of detecting women at high risk of developing a postnatal mental disorder can be used with reasonable accuracy in the 8th month of pregnancy. Further research is needed to determine whether interventions applied to this high risk group can reduce their postnatal morbidity.

Outcome of common mental disorders in Harare, Zimbabwe

BACKGROUND

Little is known about the outcome of common mental disorders (CMD) in primary care attenders in low income countries.

METHOD

Two and 12 month (T1 and T2) follow-up of a cohort of cases of CMD (n = 199) recruited from primary health, traditional medical practitioner, and general practitioner clinics in Harare, Zimbabwe. The Shona Symptom Questionnaire (SSQ) was the measure of caseness.

RESULTS

The persistence of case level morbidity was recorded in 41% of subjects at 12 months. Of the 134 subjects interviewed at both follow-up points, 49% had recovered by T1 and remained well at T2 while 28% were persistent cases at both T1 and T2. Higher SSQ scores, a psychological illness model, bereavement and disability predicted a poor outcome at both times. Poorer outcome at T1 only was associated with a causal model of witch-craft and an unhappy childhood. Caseness at follow-up was associated with disability and economic deprivation.

CONCLUSIONS

A quarter of cases of CMD were likely to be ill throughout the 12 month follow-up period. Targeting risk groups for poor outcome for interventions and policy interventions to reduce the impact of economic deprivation may provide a way of tackling CMD in primary care in low income countries.

Common mental disorders in primary care in Harare, Zimbabwe: associations and risk factors

BACKGROUND

This study aimed to investigate the associations for common mental disorders (CMD) among primary care attenders in Harare.

METHOD

This was an unmatched case-control study of attenders at primary health clinics, general practitioner surgeries and traditional medical practitioner clinics; 199 cases with CMD as identified by an indigenously developed case-finding questionnaire, and 197 controls (non-cases), were interviewed using measures of sociodemographic data, disability, care-giver diagnoses and treatment, explanatory models, life events and alcohol use.

RESULTS

CMD was associated with female gender (P = 0.04) and older age (P = 0.02). After adjustment for age, gender and site of recruitment, CMD was significantly associated with chronicity of illness; number of presenting complaints; beliefs in "thinking too much" and witchcraft as a causal model; economic impoverishment; infertility; recent unemployment; an unhappy childhood for females; disability; and consultations with traditional medical practitioners and religious priests.

CONCLUSIONS

Mental disorders are associated with female gender, disability, economic deprivation, and indigenous labels of distress states.