Allergic symptoms are chronic illness among school-age children. They must have appropriate allergic symptoms preventive behaviors. The purpose of this predictive correlational research was to study the predicting factors of allergic symptoms preventive behaviors among school-age children. The study sample included 241 school-age out-patients children in allergy clinic, tertiary hospital in Bangkok Metropolitan, a stratified random sampling. The instruments used for data collection were the demographic data, knowledge, perceived symptoms, indoor environment, outdoor environment, social support and allergic symptoms preventive behaviors. All questionnaires were tested for content validities by five panel of experts. The reliability results of the questionnaires were 6, .6, .7, .7, .7, and .8, respectively. The data were analyzed by using Descriptive statistics, Pearson’s product moment correlation, and Multiple regression analysis. The results revealed that : 1.The mean score of allergic symptoms preventive behaviors among school-age children was at a high level ([x-bar] = 44.32 ,SD = 6.10). 2.Social support, indoor environment, outdoor environment and perceived symptoms were positively related to allergic symptoms preventive behaviors among school-age children (r = .42, .23, .21, and .17, respectively) While, knowledge was not related to allergic symptoms preventive behaviors among school-age children (r = .07, p > .05). 3.Social support, indoor environment, outdoor environment and perceived symptoms and knowledge were predictors for allergic symptoms preventive behaviors. Variables accounted for 20.5% of the variance in allergic symptoms preventive behaviors among school-age children (p < .05).
