Journal of clinical periodontology · 2026
Prevalence of Periodontitis in Africa: A Systematic Review and Meta-Analysis of Epidemiological Studies Up to 2025.
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Diarra Abdoulaziz, Sabri Hamoun, Bandre Estelle Flore, Youl Estelle Noëla Hoho, Agossa Kevimy, Huck Olivier
Аннотация
AIM: To provide updated and comprehensive estimates of the changes in prevalence of periodontitis in Africa, based on epidemiological data up to 2025.
METHODS: A systematic literature search was conducted through MEDLINE, Embase, Scopus, Web of Science and Google Scholar. Meta-analyses were performed to estimate the prevalence of periodontitis across population subgroups and diagnostic criteria.
RESULTS: Twenty-three studies met the inclusion criteria. Among children (< 10 years), prevalence was 1.9% (95% CI: 0.9%-3.9%; I2 = 77.7%) and among adolescents (10-19 years), it was 11.2% (95% CI: 4.7%-24.3%; I2 = 98.1%). In young adults (20-25 years), prevalence was 12.8% (95% CI: 2.8%-42.8%; I2 = 98.9%), in adults (25-49 years), 20.0% (95% CI: 11.9%-31.7%; I2 = 99.1%) and in older adults (≥ 50 years) 23.1% (95% CI: 12.2%-39.3%). Substantial variation was observed across diagnostic definitions and thresholds. Geographic region and urban versus rural origin emerged as significant modifiers of prevalence.
CONCLUSION: Epidemiological studies on periodontitis in Africa often overrepresent younger populations and rely on non-confident diagnostic criteria, likely underestimating true prevalence. Nevertheless, updated estimates suggest a concerning burden among younger age groups. More comprehensive research is needed to enhance the accuracy of prevalence estimates of periodontitis in Africa.
METHODS: A systematic literature search was conducted through MEDLINE, Embase, Scopus, Web of Science and Google Scholar. Meta-analyses were performed to estimate the prevalence of periodontitis across population subgroups and diagnostic criteria.
RESULTS: Twenty-three studies met the inclusion criteria. Among children (< 10 years), prevalence was 1.9% (95% CI: 0.9%-3.9%; I2 = 77.7%) and among adolescents (10-19 years), it was 11.2% (95% CI: 4.7%-24.3%; I2 = 98.1%). In young adults (20-25 years), prevalence was 12.8% (95% CI: 2.8%-42.8%; I2 = 98.9%), in adults (25-49 years), 20.0% (95% CI: 11.9%-31.7%; I2 = 99.1%) and in older adults (≥ 50 years) 23.1% (95% CI: 12.2%-39.3%). Substantial variation was observed across diagnostic definitions and thresholds. Geographic region and urban versus rural origin emerged as significant modifiers of prevalence.
CONCLUSION: Epidemiological studies on periodontitis in Africa often overrepresent younger populations and rely on non-confident diagnostic criteria, likely underestimating true prevalence. Nevertheless, updated estimates suggest a concerning burden among younger age groups. More comprehensive research is needed to enhance the accuracy of prevalence estimates of periodontitis in Africa.