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- Model 1: modified to own sex and you will decades. Model dos: modified to own gender, age, peak, degree level, economic reputation, physical exercise.
- Design step 1: adjusted to have sex and you will ages. Model dos: adjusted to own sex, many years, top, education level, financial reputation, physical exercise. Harsh And myopia and large myopia is actually 0.87 (0.81–0.92) and you will 0.88 (0.80–0.98).
- Model step one: modified having gender and age. Model 2: modified to have sex, ages, peak, education top, monetary position, exercise.
- PA, physical working out; CI, depend on interval.
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006). This association is also seen in two other findings in this study: the risk for myopia was decreased by 10% per hour increase in sleep (p = 0.012), and the refractive error was increased by 0.1 D per 1 hr increase in sleep (p = 0.004). Findings in our study are consistent with a previous study in which children with 9 hr of sleep, in a randomly selected group of children from 19 schools (Gong et al. 2014 ).
We found that the odds of myopia were 41% less in subjects with >9 hr of sleep compared with those with <5 hr of sleep after adjusting for sex, age, education levels, economic status, height and physical activity (p = 0
An average sleep cycle in today’s analysis are 7.1 hours/big date, which is below advised years having adolescents. The us National Sleep Foundation advises 8.5–9.2 hr out of sleep (Carskadon et al. 2001 ). Korean adolescents have been shown to has persistent sleep starvation opposed on their colleagues far away (Yang ainsi que al. 2005 ), and something you’ll explanation because of it in search of ’s the high-intensity of education when you look at the Korea. Inside the Korea, secondary school and you will senior high school begin at the up to eight:00–8:31 and you will stop at –. Furthermore, of many Korean teenagers attend individual educational institutions, usually up to – (Yang mais aussi al. 2005 ). This type of style end up being such noted about retirement and they are consistent with the abilities acquired to your bed course. The outcome of one’s establish studies mean that persistent bed deprivation for the Korean adolescents is actually associated with the high incidence out-of myopia when you look at the Korea.
Higher myopia was not of sleep years in both linear and logistic regression analyses in the modern research, just after changes having covariates. This might suggest that sleep deprivation simply has an effect on the onset of myopia and never these development so you can higher myopia, possibly indicating your method with the development of myopia was not the same as compared to the fresh evolution so you’re able to large myopia. For example, this new associated affairs to own myopia and higher myopia have been some other within the this research. Whereas the chance circumstances getting myopia was in fact sleep course, years, peak and you will financial position, the danger activities to own highest myopia were females gender and you can level. That it dichotomy ranging from myopia onset and you can advancement has also been advertised various other degree (Jones-Jordan et al. 2012 ; Wu mais aussi al. 2013 ). Next scientific studies are ergo needed seriously to evaluate this new biologic elements and you will risk situations active in the growth of myopia and you will high myopia, it will likely be listed you to French et al. ( 2013 ) keeps argued this particular could be an analytical problem on the brand new slim set of behavioural variation present in myopic students and you may that training into seasonal and you will local variations in progression speed recommend the close performs and you may time external ; Fujiwara mais aussi al. 2012 ; Cui mais aussi al. 2013 ).
