Background: According to WHO, brucellosis is one of the 7 neglected zoonotic diseases and a major challenging issue for public health. Objectives: The aim of this study was to investigate the psychometric properties of the PRECEDE model-based scales for brucellosis prevention (PRECEDE-MSBP). Methods: In this cross-sectional study conducted in 2015, stratified random sampling was employed to recruit 420 rural residents in Ahar county, Iran. A comprehensive literature review was conducted to develop the initial draft of PRECEDE-MSBP. Face, content, and construct validity and reliability were determined. Results: Applying Exploratory Factor Analysis, the optimal solution including 37 items and 7 factors for Educational and Ecological diagnosis, 5 items and 2 factors for Environmental diagnosis, and 9 items and 3 factors for Behavioral diagnosis were emerged, which accounted for 60.43%, 56.51%, and 53.75% of the total variances, respectively. Appropriate validity, reliability, functionality, and simplicity were demonstrated for PRECEDE-MSBP. Conclusions: Researchers and health care providers interested in brucellosis prevention may apply the PRECEDE-MSBP inventory as a suitable instrument to provide the best information while conducting brucellosis prevention need assessments for their interventional efforts. However, further studies applying this instrument are needed in order to compare the different aspects of PRECEDE-MSBP in different communities.
The purpose of this model-based study was to identify behavioral and environmental prevention factors for brucellosis and to determine the causal linkage among these factors in a rural area with high prevalence of the disease. A multi-stage random sampling method was used to select villages in Ahar County, located in East Azerbaijan Province, Iran. Participants (n = 400) were recruited from these villages. Data was collected in accordance with the PRECEDE model established in March 2016. This model consists of four phases intended to assess each participant's health and quality of life. Standardized, structured questionnaires exploring different aspects of brucellosis prevention (predisposing, reinforcing, enabling, environmental, and behavioral factors) were used. Path analysis was applied to assess the pathway structure of the PRECEDE model. Overall, the model fitted the data well (χ2/df = 1.10; RMSEA = .016 (CI 95%: 0.00-0.07), SRMR = .02, CFI = .99). Significant positive associations were found among predisposing, reinforcing, and enabling factors on the one hand, and behavior, on the other hand. The predisposing factors showed significant positive associations with general health, and the reinforcing factors and general health showed significant positive associations with health-related quality of life (HRQOL). The results of this study support the use of the PRECEDE model for brucellosis prevention, and suggest that a high level of general health, in combination with reinforcing factors can increase HRQOL in an area with a high prevalence of brucellosis.
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