乌鲁木齐市3~5岁儿童龋病相关因素的主成分分析

Principal component analysis of dental caries related factors among 3-to 5-year-old children in Urumqi City

目的 探讨乌鲁木齐市3~5岁儿童龋病相关影响因素,为当地儿童龋病病因研究及一级预防提供依据。方法 运用多阶段分层整群抽样的方法,随机抽取乌鲁木齐市8个区16所幼儿园3~5岁儿童为研究对象,对其进行口腔检查、体格检查及问卷调查,回收专业检查表及问卷调查表,整理数据并采用SPSS23.0软件进行主成分Logistic回归统计分析。结果 主成分分析结果显示7个公因子的特征根值大于1,分别为:口腔卫生习惯因子、家庭教育背景因子、糖分摄入影响因子、睡前饮食习惯因子、年龄因子、胎龄因子、喂养方式因子,累计贡献率达66.486%。经主成分Logistic回归分析与低龄儿童龋相关且具有统计学意义的为口腔卫生习惯因子(OR=0.795,P=0.044)、家庭教育背景因子(OR=0.667,P=0.019)、糖分摄入影响因子(OR=1.260,P=0.006)、睡前饮食习惯因子(OR=5.432,P<0.001)及年龄因子(OR=0.676,P=0.015)。结论 经主成分分析,乌鲁木齐市3~5岁儿童龋病相关因素有口腔卫生习惯因子、家庭教育背景因子、糖分摄入影响因子、睡前饮食习惯因子及年龄因子。

Objective To explore dental caries-related factors among children aged 3-5 years in Urumqi City and to provide evidence for the etiological study and primary prevention of caries among local children.Methods A multistage stratified cluster sampling method was used to randomly select children aged 3-5 years in Urumqi City for oral examination, physical examination and questionnaire survey. Data were collected and analyzed by principal component logistic regression using SPSS 23.0 software.Results Principal component analysis showed that there were seven risk factors whose characteristic root value was greater than 1: oral hygiene habits, family education level, sugar intake, bedtime eating habits, age, gestational age, feeding mode, and cumulative contribution were 66.486% of the total variance. Principal component logistic regression analysis indicated that five factors, namely, oral hygiene habits(OR = 0.795, P =0.044), family education level(OR = 0.667, P = 0.019), sugar intake(OR = 1.260, P = 0.006), bedtime eating habits(OR = 5.432, P<0.001) and age(OR = 0.676, P = 0.015), were closely related to early childhood caries, and they were statistically significant(P<0.05).Conclusion According to the principal component analysis, oral hygiene habits factor, family education level factor, sugar intake factor, bedtime eating habits factor and age factor were dental caries related factors among 3-to 5-year-old children in Urumqi City.