ArticleBMJ open2026
Socioeconomic and environmental disparities in childhood unintentional injury risk in urban households in Chongqing, China: a latent profile analysis of cross-sectional survey data.
Article in BMJ open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesWhile the social determinants of the home environment and childhood unintentional injuries (UIs) are well established, their association within the context of rapid urbanisation in China remains understudied. Given its rapid urban growth and unique housing landscape, Chongqing provides a valuable context for this investigation. This study aimed to investigate how socioeconomic and home environmental factors collectively shape the risk of childhood UIs in urban households in Chongqing.
designCross-sectional study.
settingData were collected in April 2023, in Jiangbei District, Chongqing Municipality, China.
participantsA total of 1282 parents of children aged 0-14 years were recruited by stratified convenience sampling by the local Center for Disease Control and Prevention. Ultimately, 1186 valid questionnaires were included in the data analysis. OUTCOME MEASURES: Various indicators, including family demographics, home environmental characteristics and in-home environmental UI risk assessment, were examined.
resultsThree risk levels were identified by latent profile analysis: the Secure Environment Profile (70.91%), the Intermediate-Risk Profile (24.20%) and the High-risk Multi-hazard Profile (4.89%). Key determinants were identified through ordinal logistic regression. An increase in living area per child (m²) was associated with a reduced likelihood of being classified within a higher risk profile (OR=0.995, 95% CI 0.990 to 1.000). Furthermore, compared with households with a monthly per capita income of ≥15 000 yuan, those earning <4000 yuan and 4000-6999 yuan had 2.004 (95% CI 1.177 to 3.408) and 1.893 (95% CI 1.168 to 3.068) times the odds, respectively, of being classified within a higher-risk profile.
conclusionsThis study identifies significant heterogeneity in childhood UI risk among urban households in Chongqing, effectively characterised by distinct risk profiles. Living area per child (m
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