This quasi-experimental study aimed to assess effect of behavioral modification for opisthorchiasis prevention by participation of family health leader in village beside Lam pao dam, Huaimek district, Kalasin province. The activity participation was application of health belief model and Social Support. The participants were 80 family health leader: 40 subjects were randomly assigned to an experimental group and the other 40 to a control group. The experimental group received behavioral modification program to prevent Opisthorchiasis. The activities include Awareness about the Opisthorchiasis, discussions and modeling about the prevention of Opisthorchiasis. Learning from like model assessment of behavioral risk of liver fluke manually. The exchange of learning, group discussions and activities to participate in home visits to the promptings of friends, the assessment "attentive friends". the control group received only the health education information that usually provided by health service staff. The duration of implementation was 12 weeks. and data were collected by means questionnaires and stool specimens for liver fluke tasting. Demographic data were summarized using descriptive statistics, and differences within and between the two groups were analysis using paired sample and independent t-test, and 95% confidence were the level of significant at 0.05.
The results showed that after intervention the experimental group had higher mean scores of knowledge, the perceived susceptibility, the perceived severity, the perceived benefits of prevention and practice, that were significantly higher than those of the comparison group (p-value