This study assessed latrine characteristics and maintenance practices associated with an extended pit latrine lifetime in an informal settlement in Kampala, Uganda. Data were obtained from 306 respondents on sociodemographic characteristics, their private pit latrine characteristics and latrine lifetime. A modified Poisson regression was used to model the latrine characteristics and maintenance practices associated with the pit latrine lifetime. All analyses were performed using Stata 14 software. Approximately 23.5% of the pit latrines had a lifetime of less than 2 years, and most latrines were reportedly desludged (64.7%) or regularly cleaned for maintenance (27.1%) as a way of extending lifetime. Pit latrine lifetime extension was higher in male-headed households (prevalence ratio (PR) 1.12, 95% confidence interval (CI) 1.00–1.25), households with a smaller number of users (unshared vs shared latrines) (PR 1.15, 95% CI 1.02–1.29) and where desludging of pits was regularly done (PR 1.53, 95% CI 1.17–1.99), while post-primary education level was negatively associated with extended latrine lifetime (PR 0.88, 95% CI 0.77–0.99). Deliberate efforts, including sensitizing communities on desludging and provision of non-shared household sanitary facilities, are needed to improve latrine maintenance and consequently extend latrine lifetime.

本研究评估了与乌干达坎帕拉非正规住区延长坑式厕所寿命相关的厕所特征和维护做法。数据来自 306 名受访者，涉及社会人口学特征、他们的私人坑厕特征和厕所寿命。修改后的泊松回归用于模拟与坑式厕所寿命相关的厕所特征和维护实践。所有分析均使用Stata 14软件进行。大约 23.5% 的坑式厕所的使用寿命不到 2 年，据报道，大多数厕所被清除污泥 (64.7%) 或定期清洁维护 (27.1%)，以延长使用寿命。男户主家庭的坑厕寿命延长率更高（患病率 (PR) 1.12，95% 置信区间 (CI) 1.00–1.25），使用较少的家庭（非共用厕所与共用厕所）（PR 1.15，95% CI 1.02–1.29）并且定期清理坑内淤泥（PR 1.53，95% CI 1.17–1.99），同时小学后教育水平与延长厕所寿命呈负相关（PR 0.88，95% CI 0.77–0.99）。需要慎重努力，包括提高社区对清除污泥和提供非共用家庭卫生设施的认识，以改善厕所维护，从而延长厕所寿命。