Shared sanitation facilities have replaced open defecation in many areas, improving sanitation access. Although a broad body of literature has been published regarding the importance of shared sanitation services, it is still unclear how to assess their quality. The objective of this review was to synthesize evidence on the use of shared sanitation facilities in informal settlements and identify indicators for assessing their quality. We conducted a systematic review of relevant studies and a total of 248 studies were included in the final analysis. Findings include a proposed list of indicators for evaluating the quality of shared sanitation such as the number of people sharing facilities, cleanliness, privacy, facility location, accessibility, and safety, and a tool for distinguishing between sanitation facilities that are improved shared, basic shared and unimproved shared. We recommend incorporating the proposed indicators in primary data collection, and routine national and global sanitation monitoring.

在许多地区，共享卫生设施已经取代了露天排便，改善了卫生设施的可及性。尽管已经发表了大量关于共享卫生服务重要性的文献，但如何评估其质量仍不清楚。本综述的目的是综合非正规住区使用共享卫生设施的证据，并确定评估其质量的指标。我们对相关研究进行了系统评价，最终分析共纳入 248 项研究。研究结果包括一份拟议的指标清单，用于评估共享卫生设施的质量，例如共享设施的人数、清洁度、隐私、设施位置、可达性和安全性，以及用于区分改进的共享、基本共享和未改进的共享卫生设施的工具。我们建议将拟议的指标纳入原始数据收集以及常规的国家和全球环境卫生监测中。