Sample and settings
MAY, DISEASES
Jiaxing includes three districts, as well as two county and three county-level cities, each with 4–12 streets or towns. From May to November 2020, 12 representative streets/towns were randomly selected by stratification according to geographical location and size. Following on, all the staff of community health service centers in these streets/towns was selected. A total of 860 questionnaires were returned; 97 were excluded for being too casual in nature; e.g., their answers were all “correct” or all “wrong,” the total time taken to complete them was very short, and questionnaires were repeated or had illegible handwriting. Finally, 763 valid questionnaires were collected. Among these, 261 individuals volunteered to participate in AD-related knowledge training and were randomly divided into an offline (142) and an online (119) training group, based on the institution in which they worked.The study's inclusion criteria were as follows: (1) staff who had worked in community health service centers for more than 1 month as of March 1, 2020; staff who had good compliance, and were willing to cooperate with the investigation and training.The study's exclusion criteria were as follows: (1) staff from community health service centers who treated AD and other neuropsychiatric diseases; (2) staff who had poor compliance and refused to cooperate with the investigators.All of the participants were informed about the research purpose, agreed to participate in the study, and actively cooperated with the investigation and training.