RESUMEN
INTRODUCTION: Brucellosis is one of the common diseases between humans and animals. The purpose of this study was to investigate behavioral determinants of brucellosis incidence among stockbreeders and their family members in a rural area based on the PRECEDE model. MATERIALS AND METHODS: This cross-sectional study was carried out among 540 stockbreeders and their family members in Northeastern Iran in 2019. Sampling was done in two stages including stratified sampling and random sampling method. Data collection was conducted by a valid and reliable questionnaire developed based on the PRECEDE model. Data were analyzed using SPSS16 through Pearson correlation coefficient, independent t-test, and ANOVA. Furthermore IBM SPSS AMOS version 20 was used for the path analysis. RESULTS: The mean age of the participants was 39.02 ± 16.41 years, of whom 53.1% and 46.9% were men and women, respectively. About 23.9% of the participants had a history of brucellosis in their families. Enabling factors were the most important determinant of self-efficacy and self-efficacy was the most important determinants of behavior. Evaluation of the chi-square indicators, chi-square ratio to degree of freedom, root mean square error of approximation, adjusted goodness of fit index, parsimony comparative fit index, comparative fit index, incremental fit index, and parsimonious normed fit index indices indicated that the model was well fitted and there was a positive and significant relationship between the predisposing, enabling, and reinforcing factors on the one hand and behavior on the other. chi-square indicators, chi-square ratio to degree of freedom, root mean square error of approximation, adjusted goodness of fit index, parsimony comparative fit index, comparative fit index, incremental fit index, and parsimonious normed fit index. CONCLUSION: Designing and implementing health plans based on the PRECEDE model with more emphasis on self-efficacy as the most important behavioral determinants can bring about a positive effect on enhancing the brucellosis preventing behaviors.
RESUMEN
INTRODUCTION: Brucellosis is one of the most prevalent diseases in Torbate Heidarieh, Iran; it is a common disease between human and animals. The present study aimed to review the psychometric properties of a questionnaire on brucellosis prevention behaviors based on the PRECEDE model among rural farmers and their family members (PRECEDE-QBPB). MATERIALS AND METHODS: The study was a combination of qualitative and quantitative stages. In the qualitative stage, an 86-item questionnaire including interviews with 30 farmers, their family members and other effective people, as well as literature review, was designed. In the quantitative stage, psychometric properties of the PRECEDE-QBPB including the face, content, and constructs validities, as well as reliability measurement of the questionnaire were evaluated. Item impact, content validity ratio (CVR) and content validity index (CVI) for all items were calculated. Besides, confirmatory factor analysis (CFA) was done to evaluate the construct's validity; AMOS 20 was used for this purpose. In this stage, a cross-sectional study was conducted on 500 rural farmers and their family members. To estimate the internal consistency of this questionnaire, Cronbach's alpha was used for each variable. Further, descriptive statistics and Kaiser-Meyer-Olkin and Bartlett's test of sphericity were used to describe the characteristics of the participants and collect samples, respectively. RESULTS: Based on the results of face validity and content validity (CVR, CVI and CFA 9), 19 and 22 items were removed, respectively, leaving the final questionnaire with 36 items and eight subscales including knowledge, attitude, self-efficacy, social support, enabling factors, environmental factors, behavioral factors, and reinforcing factors. The Cronbach's coefficient alpha was calculated for the total questionnaire (α= 0.92, 0.69-0.87 for subscales). The evaluation of model fit indices showed that all indices confirmed the suitability of the final model fit; therefore, the questionnaire has suitable construct validity. CONCLUSION: A questionnaire, as a valid tool, was designed in the present study. Healthcare providers, policymakers, planners, researchers may use this tool to find a comprehensive understanding of enabling, reinforcing, environmental and behavioral factors that affect brucellosis before implementing health education and health promotion programs.
