Background: Despite robust evidence of the huge burden of caregiving amongst caregivers of patients with schizophrenia, there is a paucity of data in Africa on the interventions to address this enormous burden of caregiving.Aim: This study aimed to determine the effect of structured psychoeducation intervention on the burden of caregiving in comparison with ‘care as usual’ in a Nigerian Psychiatric Hospital.Setting: This study was done at the out-patient and in-patient units of the Federal Neuropsychiatric Hospital, Enugu, Nigeria.Methods: Caregivers of inpatients who fulfilled the International Classification of Diseases (ICD-10) criteria for diagnosis of schizophrenia were recruited for the study. The caregivers were then allocated into two groups (Group A received structured psychoeducation intervention in addition to ‘care as usual’ whilst group B received only ‘care as usual’). After the baseline assessment, the caregivers were followed up every 4 weeks for a period of 12 weeks. At each interval of follow-up, caregivers were assessed for caregivers’ burden using the Zarit Burden Interview (ZBI). Repeated measures analysis of variance (mixed type) was used to determine the effects of the interventions on caregivers’ burden in the two arms of the study across the intervals of follow-up.Results: The attrition rate at week 12 was 10.7%; leaving 130 for the assessment of outcome variable at the end of follow-up. Structured psychoeducation intervention was significantly better than ‘care as usual’ in ameliorating caregivers’ burden [F (1, 123) = 21.75, p 0.001, Partial Eta Squared = 0.39].Conclusion: These findings seem to suggest that caregivers who received structured psychoeducation intervention experienced a greater reduction in caregiver burden than those who received ‘care as usual’. Whilst the study addressed short-term effect, the findings of this study are in accord with other studies that have supported the impression that psychoeducational family-based intervention is useful with regard to caregiver burden.

IntroductionThere is a dearth of data on heritability of schizophrenia in Africa. The few African studies that addressed familial psychiatric morbidity in schizophrenia involved relatively small sample sizes and addressed psychiatric morbidity only in first-degree relatives. The present study sought to improve upon the methodology of previous African studies, and widen the scope to second- and third-degree relatives with a view to enriching the field of genetic epidemiology in Africa.MethodsThis study elicited information on the morbid risk of schizophrenia amongst 5259 relatives of schizophrenia probands (n = 138) and 6734 relatives of healthy controls (n = 138) through direct interview of patients, available relatives of patients and controls. Diagnosis of probands was confirmed using Mini International Neuropsychiatric Interview. Through a direct interview of 138 patients and their available relatives, a family history approach using the Family Interview for Genetic Studies was utilised to obtain information on the morbid risk for all relatives that could be recalled. The same approach was utilised for the interview of the controls (aged 45 years and above) and their relatives. Morbid risk estimates were calculated using the Weinberg shorter method.ResultsMorbid risk for schizophrenia in the first-, second- and third-degree relatives of schizophrenia probands was 10.9% (95% confidence interval [CI] = 10.6–11.2), 4.2% (95% CI = 4.1–4.3) and 3.9% (95% CI = 3.6–4.2), respectively, compared with 2.6% (95% CI = 2.5–2.7), 1.6% (95% CI = 1.5–1.7) and 1.5% (95% CI = 1.4–1.6), respectively, of the healthy control group.ConclusionThe findings support the widely noted impression that schizophrenia significantly aggregates in families of schizophrenia probands more than healthy controls.

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