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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