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Table 1 Basic characteristics of the study population and difference in myopia prevalence between females and males in Fenghua city, eastern China, 2001 to 2015

From: The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey

Year N (%) Age Gender
Female/Male
Myopia prevalence
Female/Male
OR 95% CI P value
2001 2418 18.50 ± 0.65 1084/1334 81.1/78.3 1.19 0.98 to 1.46 0.087
2002 2324 18.52 ± 0.59 997/1327 86.0/81.8 1.37 1.09 to 1.71 0.007
2003 2462 18.51 ± 0.64 1062/1400 88.7/79.4 2.04 1.62 to 2.57 0.000
2004 2654 18.61 ± 0.68 1247/1407 87.7/79.0 1.90 1.53 to 2.35 0.000
2005 3072 18.48 ± 0.72 1436/1636 85.7/78.2 1.68 1.39 to 2.02 0.000
2006 2974 18.49 ± 0.73 1454/1520 85.8/78.2 1.69 1.40 to 2.05 0.000
2007 3014 18.34 ± 0.57 1497/1517 89.0/78.8 2.19 1.79 to 2.69 0.000
2008 3055 18.64 ± 0.74 1481/1574 89.5/80.7 2.03 1.65 to 2.50 0.000
2009 2930 18.56 ± 0.73 1517/1413 89.0/81.0 1.89 1.54 to 2.33 0.000
2010 3276 18.46 ± 0.70 1801/1475 89.7/84.0 1.65 1.35 to 2.03 0.000
2011 3079 18.51 ± 0.69 1655/1424 89.1/82.9 1.69 1.38 to 2.09 0.000
2012 3283 18.46 ± 0.71 1794/1489 90.1/82.2 1.97 1.60 to 2.41 0.000
2013 3234 18.41 ± 0.65 1755/1479 88.8/83.0 1.62 1.32 to 1.98 0.000
2014 3151 18.39 ± 0.62 1671/1480 90.9/85.3 1.72 1.38 to 2.14 0.000
2015 2932 18.31 ± 0.60 1564/1368 90.8/84.1 1.87 1.49 to 2.34 0.000
  1. OR odds ratio, CI confidence interval, female vs male, Chi-square test