Based on the given data, the prevalence of HIV in Nigeria, indicated as a percentage of persons aged 15-49, showed a gradual decline from 2013 to 2023. In 2013 and 2014, the prevalence was stable at 1.6%. A slight decrease began in 2015, reaching 1.5%, and continued to decline steadily each year. By 2023, the prevalence had dropped to 1.3%. Forecasts predict a further decline, stabilizing at 1.2% from 2024 through 2028.
The year-on-year percentage variations highlight the trends more distinctly, with notable decreases in 2015 (-6.25%), 2018 (-6.67%), and 2021 (-7.14%). The Compound Annual Growth Rate (CAGR) over the last five years up to 2023 averaged -1.47%, reflecting the consistent reduction in HIV prevalence.
Future trends to watch for include the effectiveness of ongoing public health interventions, potential medical advancements, changes in the rate of new infections, and the impact of socio-economic factors. Monitoring these variables will provide insights into whether the decline will continue or stabilize further.
