Analysis of Secondhand Smoke Exposure and Myopia Among Children Aged 6 to 8 Years in Hong Kong.

Autor:	Zhang Y; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; The Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong SAR, China., Zhang XJ; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China., Yuan N; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; Kunming Bright Eye Hospital, Kunming, China., Zhang Y; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China., Wang YM; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; Department of Neurobiology, Interdisciplinary Center for Neurosciences, Heidelberg University, Heidelberg, Germany., Tang F; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China., Ng MP; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China., Wong ICK; Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China., Ip P; Department of Paediatrics and Adolescent Medicine, University of Hong Kong, Hong Kong SAR, China., Kam KW; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China., Young AL; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China., Chen LJ; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China.; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China.; Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China., Tham CC; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China.; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China.; Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China.; Hong Kong Eye Hospital, Hong Kong SAR, China.; Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong SAR, China., Pang CP; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China.; Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China., Yam JC; Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China.; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China.; Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China.; Hong Kong Eye Hospital, Hong Kong SAR, China.; Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong SAR, China.
Jazyk:	angličtina
Zdroj:	JAMA network open [JAMA Netw Open] 2023 May 01; Vol. 6 (5), pp. e2313006. Date of Electronic Publication: 2023 May 01.
DOI:	10.1001/jamanetworkopen.2023.13006
Abstrakt:	Importance: Secondhand smoke (SHS) exposure potentially threatens ocular health; however, its association with myopia is unknown. Objective: To examine the association between SHS exposure and childhood myopia. Design, Setting, and Participants: Cross-sectional data from the population-based Hong Kong Children Eye Study were used. Data were collected from March 5, 2015, to September 12, 2021, at The Chinese University of Hong Kong Eye Center. Participants included children aged 6 to 8 years. Secondhand smoke exposure was evaluated using a validated questionnaire. All participants underwent comprehensive ophthalmic and physical examinations. Exposure: Secondhand smoke exposure. Main Outcomes and Measures: Generalized estimating equations were constructed to examine the association of SHS exposure with spherical equivalent and axial length; logistic regression models, with myopia rate; and linear regression models, with myopia onset. Results: A total of 12 630 children (mean [SD] age, 7.37 [0.88] years; 53.2% boys) were included in the analysis. Among the participants, 4092 (32.4%) had SHS exposure. After adjusting for age, sex, parental myopia, body mass index, near-work time, outdoor time, and family income, SHS exposure was associated with greater myopic refraction (β = -0.09 [95% CI, -0.14 to -0.03]) and longer axial length (β = 0.05 [95% CI, 0.02-0.08]). Children with SHS exposure were more likely to develop moderate (odds ratio [OR], 1.30 [95% CI, 1.06-1.59]) and high myopia (OR, 2.64 [95% CI, 1.48-4.69]). The association of SHS exposure with spherical equivalence and axial length was magnified in younger children. For each younger year of a child's exposure to SHS, SHS exposure was associated with a 0.07-D decrease in spherical equivalence (β = 0.07 [95% CI, 0.01-0.13]) and a 0.05-mm increase in axial length (β = -0.05 [95% CI, -0.08 to -0.01]). Exposure to SHS was associated with an earlier mean (SD) age at onset of myopia (72.8 [0.9] vs 74.6 [0.6] months; P = .01). Every increase in SHS exposure in units of 10 cigarettes per day was associated with greater myopic refraction (β = -0.07 [95% CI, -0.11 to -0.02]), axial length (β = 0.04 [95% CI, 0.01-0.06]), and likelihood of developing moderate (OR, 1.23 [95% CI, 1.05-1.44]) and high myopia (OR, 1.75 [95% CI, 1.20-2.56]), and earlier myopia onset (β = -1.30 [95% CI, -2.32 to -0.27]). Conclusions and Relevance: The findings of this cross-sectional study suggest that SHS exposure was associated with greater myopic refraction, longer axial length, greater likelihood of developing moderate and high myopia, and earlier myopia onset. The larger the quantity of SHS exposure and the younger the child, the more advanced myopia development and progression with which SHS exposure is associated.
Databáze:	MEDLINE
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