Participants
BLIND
In the first stage, 8 rural communities with similar economic conditions were selected as the target communities for sampling to facilitate the sampling. In order to avoid contamination, 6 communities in Yingxiu Town (In the second stage, paper strips with the names of the 6 village committees in Yingxiu Town were placed into an opaque container, and then they were taken twice in order. The two communities of the intervention group selected. There were 118 MS patients in the two villages.In the third stage, the intervention group and the control group were selected from the 4 research communities selected in the first and second stages. The random sampling method was performed using Stata/MP14.0 software to generate a random number generator according to the ratio of experimental group: control group = 1:1 for randomized sample extraction.Blind method: data collectors, data entry and statistical analysis personnel were blinded.