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Table 2 Association with risk factors for the pediatric myopia and high myopia

From: Factors associated with myopia in Korean children: Korea National Health and nutrition examination survey 2016–2017 (KNHANES VII)

 Non-myopia (−0.50 < SE)Myopia (SE ≤ -0.5)OR (95% CI)P-valueHigh myopia (SE ≤ -6.0)OR (95% CI)P-value
Number340643  68  
Age (years)  1.27 (1.18, 1.37)<.001 1.44 (1.26, 1.64)<.001
 Mean (SD)9.39 (0.31)13.31 (0.16)  15.40 (0.30)  
 Median (IQR)7.71 (5.65, 11.30)13.45 (10.39, 15.66)  15.36 (13.31, 16.65)  
BMI (kg/m2)  1.04 (0.97, 1.12)0.239 1.19 (1.04, 1.36)0.009
 Mean (SD)17.76 (0.28)20.33 (0.21)  22.58 (0.61)  
 Median (IQR)16.83 (15.17, 19.53)19.77 (17.37, 22.63)  21.80 (19.56, 24.72)  
Parental myopia, n (%)210 (61.76)477 (74.18)1.84 (1.27, 2.68)0.00256 (82.35)3.48 (1.28, 9.46)0.015
Near work, n (%)
  ≤ 1 h/D60 (51.25)54 (48.75)Reference 4 (5.88)Reference 
 1–2 h/D139 (38.56)181 (61.44)1.05 (0.6, 1.85)0.85617 (25.00)0.98 (0.31, 3.09)0.970
 3 h/D68 (24.64)145 (75.36)1.53 (0.86, 2.7)0.14412 (17.65)0.77 (0.18, 3.22)0.717
 4 h/D ≤73 (18.85)263 (81.15)1.38 (0.77, 2.49)0.28235 (51.47)1.12 (0.35, 3.56)0.852
Accompanying disease, n (%)
 Atopic dermatitis56 (16.47)100 (15.55)1.04 (0.72, 1.5)0.838156 (15.87)0.62 (0.21, 1.9)0.403
 Sinusitis20 (5.88)41 (6.38)0.70 (0.28, 1.75)0.44161 (6.21)0.63 (0.11, 3.44)0.588
  1. All data are expressed as n (%) for categorical variables or mean (SD), median (IQR) for continuous variables
  2. SE spherical equivalent; OR odds ratio; CI confidence interval; SD standard deviation; IQR interquartile range; BMI body max index;
  3. P-values are calculated using the multivariavle logistic regression