Association of Myopia with cognitive function among one million adolescents

BMC Public Health

Table 1 Myopia Prevalence by Sociodemographic Variables, Univariable Logistic Regression Analysis

Variable		Adolescents with Myopia, No./Total No. (%)	P Value
Gender	Female	154857/452874 (34.2)	<.001
Gender	Male	174016/569551 (30.6)	<.001
Country of origin	Western	98543/296049 (33.3)	<.001
	North-African	81563/278154 (29.3)
	Asia	92034/268265 (34.3)
	Former USSR	26481/82488 (32.1)
	Ethiopia	1697/8927 (19.0)
	Israel	28555/88542 (32.3)
Socioeconomic status^a	Low	81185/235072 (34.5)	<.001
	Medium	169265/546684 (31.0)
	High	78423/240669 (32.6)
Years of education	< 9	2478/12793 (19.4)	<.001
	10–11	13632/53825 (25.3)
	> 12	312763/955807 (32.7)
BMI^b	Underweight	33874/100070 (33.9)	<.001
	Normal weight	250232/787254 (31.8)
	Overweight	28127/86113 (32.7)
	Obese	16640/48988 (34.0)
Height^c	Short	19128/54717 (35.0)	<.001
	Normal	298836/934926 (32.0)
	Tall	10909/32782 (33.3)
Total		328873/1022425 (32.2)

Abbreviations: USSR Union of Soviet Socialist Republics, BMI Body mass index
^aAccording to the Israeli Ministry of Interior classification: low (1st-4th deciles), medium (5th–7th deciles) and high (8th–10th deciles)
^bBody mass index. Sex- and Age- (by months) adjusted percentiles of BMI and height according to the United States Centers for Disease Control and Prevention (CDC) 2000 growth charts. BMI classification: underweight (BMI <5th percentile), normal weight (5th percentile < BMI < 85th), overweight (85th percentile < BMI < 95th), and obese (BMI > 95th percentile)
^cHeight classification: short (Height < 5th percentile), normal (5th percentile < Height < 95th), and tall (Height > 95th percentile)

ISSN: 1471-2458