Suicide rates in Lusaka, Zambia: preliminary observations

Suicide in Blantyre, Malawi (2000-2003)

In an attempt to identify at risk individuals, we analysed available information for individuals who committed suicide in Blantyre, Malawi. A retrospective audit of suicides autopsied at the Queen Elizabeth Central Hospital and the University of Malawi College of Medicine mortuaries between January 2000 and December 2003 was analysed by age, sex, residential location, and mode of suicide. Eighty-four suicide cases (65 males, 19 females) represented 17% of all autopsies. The major mode of suicide in Blantyre was chemical poisoning using an agricultural pesticide, accounting for 66 cases (79%)-49 males (76%), 17 females (89%). There were no cases of poisoning by therapeutic medicines, self-immolation or incised wounds. The majority of cases were from one major urban area, Limbe, and one peri-urban area, Chileka. The demographics of suicide in Malawi differ from those reported for other African countries (e.g., lower proportion of females, no use of therapeutic medicine in poisoning, few gunshots). This audit highlights a need for investigations into the sale and use of agricultural pesticides. A prospective study of social and demographic factors around suicide should be undertaken to target groups at highest risk.

Seasonal distribution of suicide in alcoholism

OBJECTIVE

To investigate the seasonal distribution of suicide in alcohol dependence and to make a comparison with unnatural death in alcoholism and suicide in other diagnostic groups.

METHOD

Multiaxial ratings of all patients admitted to the Department of Psychiatry in Lund enabled the selection of patients with alcohol dependence (n=1312) during 1949-1969. When followed up to 1997 a total of 102 (99 men) alcoholic patients had taken their own life. Reference groups were patients with severe depression and autopsy cases with other diagnoses.

RESULTS

The alcoholic patients showed a peak during the second quarter of the year (34%, P < 0.05). Other diagnostic groups of suicide and unnatural death in alcoholism did not show any overrepresentation in the spring.

CONCLUSION

Male alcoholics showed a spring peak of suicide as opposed to other diagnostic groups.

Suicide in women

This article reviews research into suicide in women during the last 25 years. National rates vary between the extremes of 19/10(5) per year in Sri Lanka and < 1/10(5) per year in the Philippines and Egypt, but almost everywhere rates for women are much lower than male rates, with a median ratio of 2.8/1. The exceptions are in India and China, which report higher rates in young married women. The reproductive process has some influence. While menstruation, hormonal treatment, pregnancy and the puerperium have no major effect, unwanted pregnancy may still lead to suicide under certain circumstances, and severe labour can occasionally do so. Having children protects, but the relative risk is no more than 2.0 in nulliparous women. Social factors also have a limited effect. There are higher rates of suicide in divorced women, but the evidence on widowhood is equivocal. Prosperity and employment have no effect. Sexual abuse, rape and domestic violence undoubtedly lead to suicide attempts, but the evidence on completed suicide is lacking. There are many unanswered questions, especially why rates of completed suicide for women (with a greater prevalence of overt depression) are lower than for men, and why Chinese and Indian women have higher rates. More research is required, especially from developing nations.

Ethnic differences in the presentation of bipolar affective disorder

There have been repeated reports that Afro-Caribbean people living in the UK are more prone than white people to be diagnosed as having schizophrenia and mania, along with some evidence that they are less likely to receive a diagnosis of depression. We attempted to replicate these findings in a population of patients on lithium prophylaxis. We therefore assessed the clinical characteristics of people under the age of 55 from three ethnic groups attending a lithium clinic in south London, those of (1) white British (n = 88); (2) Afro-Caribbean (n = 31); and, (3) African (n = 15) origin. Nineteen of the white patients met DSM-IV criteria for unipolar depression (UP) and eight met the criteria for bipolar II disorder (BP II); in contrast, only two black patients met the criteria for unipolar depression and none met the criteria for BP II. Among patients diagnosed as BP I, Africans were significantly more likely than whites to show exclusively or mainly manic presentations while Afro-Caribbeans were more likely to have had mood-incongruent delusions. On the other hand, white patients were significantly more likely than Afro-Caribbeans to have had suicidal ideas or actions, and showed a similar but not significant excess when compared with Africans. Our findings could reflect either genuine ethnic differences in the presentation of severe affective disorder or be produced by the failure of British doctors to detect depression and deliver appropriate treatment to their black patients. The frequency with which Afro-Caribbean patients with mania present mood-incongruent delusions probably contributes to the high rates of diagnosed schizophrenia in this population.

Domestic violence and mental health: correlates and conundrums within and across cultures

Gender-based violence, only recently emerging as a pervasive global issue, contributes significantly to preventable morbidity and mortality for women across diverse cultures. Existing documentation suggests that profound physical and psychological sequelae are endemic following intimate partner violence. The presentation of domestic violence is often culture specific. A new lexicon, prompted by the expansion of human rights analysis, describes particular threats to local women including dowry deaths, honor murder, saiti, and disproportional exposure to HIV/AIDS as well as globally generic perils including abuse, battering, marital rape, and murder. While still fragmentary, accruing data reveal strengthening associations between domestic violence and mental health. Depression, stress-related syndromes, chemical dependency and substance (ab)use, and suicide are consequences observed in the context of violence in women's lives. Emerging social, legal, medical, and educational strategies, often culture specific, offer novel local models to promote social change beginning with raising the status of women. The ubiquity, gravity, and variability of domestic violence across cultures compel additional research to promote the recognition, intervention, and prevention of domestic violence that are both locally specific and internationally instructive.

Seasonal variation of suicide in South Africa

Seasonal trends in South African suicide incidence were investigated with a view to ascertaining whether they are consistent with those in the northern hemisphere regarding: (1) the existence of the expected pattern; (2) this pattern being more pronounced for less urbanized groups; and (3) the presence of a secondary fall peak for youth and females. Log-linear modelling was performed to investigate the effect of month and relevant demographic variables on the suicide counts. The 16,389 nationally registered suicide deaths during 1980-1989 were analysed. The expected pattern, with a peak in the spring (that is, in September/October) or summer and a trough in winter, was present. This pattern was more pronounced for a sub-group that is less urbanized and for another sub-group with a relatively low standard of living. The secondary peak in autumn was not present for youth or females. In the northern hemisphere, this secondary peak has been ascribed to sociodemographic factors associated with the commencement of the academic year and (for females) bioclimatic factors associated with gender-specific biological circannual rhythms. The fact that the academic year commences in summer in South Africa indicates that the present findings are consistent with the former explanation.

Mental health in Africa: II. The nature of mental disorder in Africa today. Some clinical observations

Aspects of clinical psychiatric syndromes described in Africa which are discussed include the issue of schizophrenic disorders having a better prognosis in developing countries; controversy over this is by no means at an end. There is an increasing realisation as to the frequency of affective disorders in Africa; while somatisation is common, cherished beliefs, such as the absence of guilt, have not been confirmed by more recent research. Nor is suicide as infrequent as has been suggested. The relationship of background physiological abnormalities of cerebral functioning may be relevant to some of the clinical issues that are currently under discussion in African psychiatry.

The monthly and weekly distribution of suicide

First a review of recent studies of the monthly and weekly distribution of suicide is given. Then the results of an analysis of the mortality figures for Lower Saxony from 1968 to 1977 are presented in which age, sex and means of suicide are taken into consideration. The monthly distribution of all suicides (ICD8 E950-E958) shows a maximum incidence in spring and early summer and a minimum in winter, the weekly distribution a maximum on Monday and minimum at the weekend. In contrast to suicides by hanging, strangulation and suffocation (ICD8 E953) which follow the same pattern, the figures for suicide by poisoning with solid and fluid substances (ICD8 E950) show practically no heterogeneity in both, monthly and weekly distributions. The results are interpreted using Durkheim's concept of 'anomia', drawing an analogy between the days of the week and the months of the year.

Mellowing with age: factors influencing the nonwhite suicide rate

The age patterning of white and nonwhite suicide rates reveals a marked and consistent divergence: white suicide rates increase with age; however, nonwhite suicide rates peak in youthful years and decline during middle and older ages. Six explanatory hypotheses are proposed to account for the divergence: 1) differential life expectancy; 2) deviant burnout; 3) screening out of the violence-prone; 4) role and status of the elderly; 5) traditional values; and 6) age-specific motives. Discussion and analysis of the proposed hypotheses indicate that they do operate in the direction of reducing the suicide rates of elderly nonwhites, thereby contributing to the observed age discrepancy in white and nonwhite suicide rates.