Review estimates mild cognitive impairment among older populations in Africa
A pooled estimate suggests a substantial burden, but study results varied widely and the reported associations need cautious interpretation.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Mild cognitive impairment was common in the older African populations studied, but prevalence estimates differed greatly between studies. Depression, hypertension and poor social support were among the associated characteristics. These findings do not establish causes, and the pooled estimate should not be treated as a prevalence figure for every African country.
The abstract reports very high variation between studies and evidence of publication bias. It omits country coverage, sample sizes and assessment methods, limiting interpretation of a single pooled prevalence estimate.
What researchers found
Pooled prevalence of mild cognitive impairment
Prevalence among the included older African populations, expressed as a percentage; no comparator applies. Assessment timeframe was not reported in the abstract.
How studies were combined
Researchers searched multiple databases, assessed study quality and pooled estimates using a random-effects model. They examined both how frequently mild cognitive impairment was identified and which characteristics were associated with it.
Associations need careful reading
The abstract also lists associations involving age, sex, literacy, income and nutrition. It does not identify the statistical scale of the association estimates, so their values cannot reliably be interpreted as changes in risk.
The original publication
Magnitude and predictors of mild cognitive impairment among older populations in Africa: a systematic review and meta-analysis.
Asnakew S, Nealon J, Semachew Kasa A et al.
Transl Psychiatry · 2025
- PubMed ID
- 41073382
- Record checked
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