Competency building for lay health workers is an intangible force driving basic public health services in Southwest China

Background Providing universal basic public health services (BPHS) for residents is the main goal of the new health reform in China. Lay health workers (LHWs) in primary health care (PHC) sectors play key roles in BPHS delivery. The competency of LHWs is critical to quality BPHS. This study assessed LHWs’ competency to deliver BPHS and related training in resource-limited Southwest China.