Introduction: Africa is the continent most affected by human papillomavirus (HPV), the main agent responsible for cervical cancer. The aim of our systematic review was to determine the epidemiology of circulating HPV types from different anatomical sites and the factors associated with the occurrence of cervical cancer in African countries.
Methods: A systematic review and meta-analysis of studies was conducted from January 2013 to December 2023 in Africa on HR-HPV (High Risk- Human Papillomavirus), lesions grading, and determinants, as per diagnostic methods used. Following the search strategy, R software version 3.6.0 was used for the meta-analysis, with p<0.05 considered statistically significant.
Results: 38 studies carried out in Africa were selected, including 24,417 participants (mean age 37). The overall prevalence of HR-HPV was 42.01% in the general population, and 49.8% in HIV-positive populations, versus 21.2% in HIV-negative populations. In HIV-positive individuals, 14 HR-HPV genotypes were identified, the most prevalent being HPV 16 (31.58%), 18 (26.32%), 31 (26.32%) and 33 (23.69%). In contrast, only 12 types of HR-HPV were identified in HIV-negative individuals, the most prevalent genotypes being 16 (13.16%), 33 (15.79%), 35 (10.53%) and 45 (13.16%). According to the risk of CC occurrence, high-grade squamous intraepithelial lesions (HSIL) were 37.5% (9/24) in HIV-positive women versus 12.5% (3/24) in HIV-negative women, OR=3.800 [0.872-16.553], p=0.096. According to the HPV typing methods, On the 38 studies the most commonly used were Roche Linear Array® HPV (31.07%), multiplex PCR (23.7%), Hybrid Capture II (10.5%), AnyplexII28 (5.3%). Several sample types were used, with a predominance of 57.89% (22/38) cervical samples, 23.7% (9/38) biopsies, 7.89% (3/38) oropharyngeal and anal samples, 7.89% (3/38) vaginal samples and 2.63% (1/38) blood samples.
Conclusion: The high genetic diversity of HR-HPV is greater in the HIV-positive population than in the HIV-negative population. This genotypic diversity of HPV means that management depends on HIV serostatus.