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目的探讨游泳水平对农村儿童非致死性溺水交互作用的影响。方法采取多阶段分层整群抽样方法随机抽取2个镇的全部3~9年级的中小学生,对调查对象的基本情况、父母文化程度及家庭关系、学生的游泳水平、学生溺水认知情况、高危行为、环境、溺水发生情况等进行调查,采用对数线性模型对性别、年龄和游泳水平等危险因素进行多元统计分析其与非致死性溺水的关系,并对数据拟合的结果进行显著性检验。对性别、年龄和游泳水平等因素的主效应和交互效应进行分析。结果本次共调查学生8 390人,有效问卷8 317份。男生4 367人,女生3 950人,分别占52.5%、47.5%,年龄为8~18岁,41.7%(3 470/8 317)的调查对象不会游泳。发生非致死性溺水1 013人,非致死溺水发生率为12.2%。对数线性模型结果显示,模型拟合优度高(似然比X~2=5.414,P>0.05;PearsonX~2=5.422,P>0.05),游泳水平与性别,游泳水平与年龄,游泳水平与性别、年龄间存在着显著的交互作用(P<0.05或P<0.01)。结论游泳水平对非致死性溺水的发生有显著影响,提示游泳水平对溺水的发生有更高的保护性。
Objective To explore the effect of swimming level on the non-lethal drowning interaction in rural children. Methods The multi-stage stratified cluster sampling method was adopted to randomly select primary and secondary school students from grade 3 to grade 9 in 2 towns. Based on the survey, the parents’ educational level and family relationship, the level of swimming, the cognition of student drowning, High risk behavior, environment and drowning were investigated. The logarithm linear model was used to analyze multivariate statistical analysis of risk factors such as sex, age and swimming level and nonfatal drowning. The data fitting results were significant test. The main effects and interaction effects of factors such as gender, age and swimming level were analyzed. Results A total of 8 390 students were surveyed and 8 317 valid questionnaires were completed. 4 367 boys and 3 950 girls, accounting for 52.5% and 47.5%, respectively. The age group of 8-18 years old and 41.7% (3 470/8 317) did not swim. There were 1 013 nonfatal drowning and 12.2% non-fatal drowning. The results of log-linear model showed that the fitness of the model was high (the likelihood ratio X ~ 2 = 5.414, P> 0.05; Pearson X ~ 2 = 5.422, P> 0.05). The swimming level and gender, swimming level and age, swimming level There was a significant interaction with gender and age (P <0.05 or P <0.01). Conclusion The level of swimming has a significant impact on the occurrence of non-fatal drowning, suggesting that the level of swimming has a higher protective effect on the occurrence of drowning.