Background
Lost to follow-up among pediatric human immune deficiency virus infected patients is a major challenge for the global scale-up of lifesaving antiretroviral therapy (ART). It is considerable obstacle for effectiveness of the program which negatively impacted on immunological benefits of ART and drug adherence. Additionally, it increases drug toxicity, resistance and acquired immune deficiency syndrome related morbidity and mortality. Therefore, it is very crucial to identify the incidence and determinants of loss to follow up among children in study area.
Objectives
To determine incidence and determinants of lost to follow-up among human immune deficiency virus-infected children on Anti-Retroviral Treatment.
Method
A retrospective cohort study was conducted among 269 randomly selected children who had been on ART in the health facilities of Shashemene Town from January 1, 2015 to December 30, 2020. Data on patients’ medical records such as patient intake form and the registers were collected using standardized checklist. Data were coded and entered by Epidata version 3.1 and analyzed by Statistical Product and Service Solutions (SPSS) version 25. The Cox proportional hazard assumption was checked using Schoenfeld residual test (global test > 0.05). Finally, adjusted hazard ratio with 95% confidence interval was computed, and variables with P-values < 0.05 in multivariable analysis were taken as significant predictors of lost to follow up.
Results
Of 269 HIV-infected children included in the final analysis, 43 (16%) were loss to follow up. The overall incidence rate of loss to follow up was 3.3 with (95% CI: 2.4–4.4) per 100 Child-Year of observation. Age less than 5 years (AHR:0.03 95% CI: 0.003–0.361), non-orphan status of the child (AHR = 0.13(0.048–0.340), < 30-minute distance from health facility (AHR:0.24 95% CI:0.077–0.728), disclosed HIV status (AHR :0.32 95% CI :0.126–0.795), history of opportunistic infection (AHR: 3.54, 95%CI :1.152–10.866) and CD4 below threshold (AHR:5.17 95%:CI:2.082–12.8490) were significant determinants of loss to follow up.
Conclusion
The incidence density of loss to follow up in this study was low as compared to other studies. The finding indicated that older children, orphan, low immune status, undisclosed HIV status and distance from health facility were independent determinants of loss to follow up. Giving special attention to older, orphan and those with low CD4 count is mandatory. Age-appropriate disclosure should also be encouraged.