Relationship between lifestyle habits and obesity based on latent category analysis among 12–18-year adolescents

Abstract

Objective To analyze the latent category characteristics of lifestyle habits of adolescents aged 12-18 years, and to explore its relationship with obesity.

Methods Data of 3 252 adolescents aged 12-18 years in the established China Nutrition and Health Survey were used for this study. The contents of the survey include basic situation, living habits, and body mass index. Latent category analysis was performed on 11 lifestyle habits on eating and exercise. Chi-square test was used to explore the relationship between the potential categories of lifestyle habits and obesity.

Results All the participants were classified into 3 categories: mixed ( n =1 092, 35.58%), passive ( n = 765, 23.52%), and healthy ( n =1 395, 42.90%) groups. Body mass index showed significant differences across three categories (χ ² = 19.66, P<0.01). In the BMI classification of adolescents, the healthy type has the highest proportion in the light type, overweight type and obesity type (41.61%, 47.87%, 50.00%).

Conclusion The lifestyle habits of adolescents aged 12-18 years show obvious classification characteristics, which have different correlations with obesity. Targeted interventions should be carried out according to the characteristics of lifestyle habits under different body mass index.

Abstract

【摘要】 目的 分析12~ 18岁青少年生活习惯的潜在类别特点及与肥胖的关联性, 以期为青少年的体质健康管理提供科 学依据。 方法 应用已建立的中国营养与健康调査数据库中2004、2006、2009、2011和2015年3 252名12~ 18岁青少年数 据进行研究。调査内容包括基本情况、生活习惯、体质量指数(BMI)。对研究对象饮食习惯和运动习惯11项生活习惯进 行潜在类别分析, 采用; χ ²检验和对应分析探讨生活习惯潜在类别与肥胖的关系。 结果 潜在类别分析将研究对象生活习 惯分为混合型1 092名(35.58%)、消极型765名(23.52%)、健康型1 395名(42.90%)3类。3个潜在类别组的BMI水平分 布特点差异有统计学意义(χ ² = 19.66, P<0.01)。青少年BMI过轻型、超重型、肥胖型均以健康型占比最髙(41.61%, 47.87%, 50.00%)。 结论 青少年的生活习惯有明显的分类特征, 不同生活习惯潜在类别与肥胖之间存在关联性。应针对 不同BMI水平青少年的生活习惯特点进行干预。