Distribution of cervical abnormalities detected by visual inspection with acetic acid in Swaziland, 2011–2014 : a retrospective study

Background: Cervical cancer is the fourth most common cancer worldwide among women, with the number of new cases increasing from 493 243 in 2002 to 527 000 in 2012. These numbers are likely to be underestimated because given the lack of registration resources, cervical cancer deaths are usually under-reported in low-income countries.Aim: To describe the distribution of and trends in visual inspection with acetic acid (VIA) to detected cervical abnormalities in Swaziland by reviewing records of VIA examinations performed at two main hospitals in Swaziland between 2011 and 2014. Setting: Mbabane Government Hospital and Realign Fitkin Memorial (RFM).Methods: Records of cervical screening using VIA at the Mbabane government hospital and RFM hospital between 2011 and 2014 were retrieved. Positivity rates (PRs) of VIA with 95% confidence intervals (95% CI) were calculated and used as proxies of cervical abnormalities. Odds ratios of the association between VIA-detected cervical abnormalities and human immunodeficiency virus (HIV) status were estimated using logistic regressions.Results: VIA was positive in 1828 of 12 151 VIA records used for analysis (15%, 95% CI: 14.4– 15.7). VIA was positive in 9% (36 of 403) women under the age of 20, in 15.5% (1714 of 11 046) of women aged 20–49 years and in 11.1% (78 of 624) of women aged 50–64 years. A decreasing trend of VIA positivity was observed over time at both screening centres (p for trend