Table 1 Means of age, ocular biometrics and stature measurements by gender group
From: Association between body stature with ocular biometrics and refraction among Chinese preschoolers
Total | Male | Female | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Variables | N | Mean ± SD | Range(Min ~ Max) | N | Mean ± SD | Range(Min ~ Max) | N | Mean ± SD | Range(Min ~ Max) | t-value | P-value | |
Age(years) | 373 | 4.91 ± 0.79 | 3.02 ~ 6.97 | 182 | 4.98 ± 0.79 | 3.28 ~ 6.86 | 191 | 4.85 ± 0.79 | 3.02 ~ 6.97 | 1.62 | 0.11 | |
Height(cm) | 373 | 110.45 ± 7.03 | 87.00 ~ 130.00 | 182 | 111.71 ± 6.74 | 96.50 ~ 130.00 | 191 | 109.26 ± 7.11 | 87.00 ~ 127.00 | 3.41 | < 0.01 | |
Weight(kg) | 373 | 18.81 ± 3.03 | 11.50 ~ 27.50 | 182 | 19.32 ± 2.81 | 13.00 ~ 27.00 | 191 | 18.32 ± 3.16 | 11.50 ~ 27.50 | 3.23 | < 0.01 | |
BMI(kg/m2) | 373 | 15.36 ± 1.58 | 8.06 ~ 20.74 | 182 | 15.44 ± 1.43 | 11.57 ~ 19.95 | 191 | 15.29 ± 1.71 | 8.06 ~ 20.74 | 0.96 | 0.34 | |
SER(D) | 373 | 1.33 ± 0.79 | -2.00 ~ 4.75 | 182 | 1.18 ± 0.71 | -1.13 ~ 3.88 | 191 | 1.48 ± 0.84 | -2.00 ~ 4.75 | -3.71 | < 0.01 | |
AL(mm) | 373 | 22.27 ± 0.69 | 19.90 ~ 24.69 | 182 | 22.57 ± 0.60 | 20.94 ~ 24.69 | 191 | 21.97 ± 0.64 | 19.90 ~ 23.45 | 9.35 | < 0.01 | |
CCT(mm) | 373 | 0.55 ± 0.03 | 0.47 ~ 0.62 | 182 | 0.55 ± 0.03 | 0.47 ~ 0.62 | 191 | 0.54 ± 0.03 | 0.47 ~ 0.62 | 3.54 | < 0.01 | |
ACD(mm) | 373 | 3.49 ± 0.21 | 2.79 ~ 4.09 | 182 | 3.56 ± 0.20 | 3.05 ~ 4.09 | 191 | 3.43 ± 0.19 | 2.79 ~ 4.02 | 6.29 | < 0.01 | |
LT(mm) | 373 | 3.54 ± 0.14 | 3.12 ~ 3.92 | 182 | 3.52 ± 0.15 | 3.19 ~ 3.90 | 191 | 3.56 ± 0.14 | 3.12 ~ 3.92 | -2.95 | < 0.01 | |
VCD(mm) | 373 | 14.68 ± 0.65 | 12.46 ~ 17.04 | 182 | 14.94 ± 0.59 | 13.51 ~ 17.04 | 191 | 14.44 ± 0.61 | 12.46 ~ 15.75 | 8.10 | < 0.01 | |
CR(mm) | 360 | 7.77 ± 0.23 | 7.25 ~ 8.61 | 175 | 7.83 ± 0.22 | 7.25 ~ 8.44 | 185 | 7.71 ± 0.22 | 7.31 ~ 8.61 | 5.15 | < 0.01 | |
AL-to-CR ratio | 360 | 2.87 ± 0.07 | 2.64 ~ 3.09 | 175 | 2.88 ± 0.07 | 2.74 ~ 3.09 | 185 | 2.85 ± 0.07 | 2.64 ~ 3.04 | 4.72 | < 0.01 | |