Table 5.
Age-specific results of the associations of anthropometric indicators with both refraction and ocular biometrics
| 6–8 years old (n=170) | 9–11 years old (n=158) | 12–15 years old (n=154) | |
| b | b | b | |
| Height (per 10 cm) | |||
| SER (D) | −0.31 (−0.59 to –0.03)* | −0.48 (−0.71 to –0.24)** | 0.35 (−0.52 to 1.22) |
| AL (mm) | 0.17 (−0.02 to 0.35) | 0.25 (0.11 to 0.38)** | −0.25 (−0.69 to 0.18) |
| CCT (μm) | 2.01 (−5.59 to 9.60) | 0.77 (−3.82 to 5.36) | 10.49 (−5.41 to 26.39) |
| ACD (mm) | 0.04 (−0.02 to 0.10) | 0.03 (−0.01 to 0.06) | −0.09 (−0.17 to –0.01) |
| LT (mm) | −0.03 (−0.08 to 0.02) | −0.01 (−0.04 to 0.01) | 0.07 (−0.02 to 0.15) |
| VCD (mm) | 0.18 (−0.004 to 0.36) | 0.23 (0.09 to 0.36)** | −0.23 (−0.69 to 0.23) |
| CC (mm) | −0.01 (−0.07 to 0.05) | −0.01 (−0.05 to 0.03) | 0.01 (−0.09 to 0.12) |
| AL/CC | 0.03 (0.003 to 0.05)* | 0.04 (0.02 to 0.05)** | −0.04 (−0.09 to 0.02) |
| Weight (per 10 kg) | |||
| SER (D) | −0.37 (−0.67 to –0.07)* | −0.48 (−0.74 to –0.23)** | 0.39 (−0.23 to 1.01) |
| AL (mm) | 0.13 (−0.08 to 0.33) | 0.29 (0.15 to 0.44)** | −0.09 (−0.41 to 0.22) |
| CCT (μm) | 1.43 (−6.93 to 9.79) | 3.00 (−1.99 to 7.99) | 10.83 (−0.38 to 22.04) |
| ACD (mm) | −0.002 (−0.06 to 0.06) | 0.03 (−0.01 to 0.07) | −0.06 (−0.11 to 0.002) |
| LT (mm) | 0.02 (−0.03 to 0.08) | −0.03 (−0.06 to 0.001) | 0.02 (−0.05 to 0.08) |
| VCD (mm) | 0.11 (−0.09 to 0.31) | 0.29 (0.14 to 0.44)** | −0.06 (−0.39 to 0.28) |
| CC (mm) | 0.02 (−0.05 to 0.08) | 0.003 (−0.04 to 0.04) | 0.04 (−0.04 to 0.11) |
| AL/CC | 0.01 (−0.01 to 0.04) | 0.04 (0.02 to 0.06)** | −0.03 (−0.07 to 0.01) |
| BMI (per 10 kg/m2) | |||
| SER (D) | −0.46 (−1.10 to 0.17) | −0.63 (−1.38 to 0.13) | 0.96 (−1.02 to 2.93) |
| AL (mm) | 0.06 (−0.36 to 0.48) | 0.47 (0.05 to 0.90)* | 0.03 (−0.98 to 1.03) |
| CCT (μm) | 0.84 (−16.31 to 17.99) | 9.14 (−5.10 to 23.37) | 28.47 (−7.47 to 64.41) |
| ACD (mm) | −0.07 (−0.19 to 0.06) | 0.04 (−0.07 to 0.15) | −0.10 (−0.28 to 0.09) |
| LT (mm) | 0.10 (−0.01 to 0.21) | −0.07 (−0.16 to 0.01) | −0.03 (−0.23 to 0.17) |
| VCD (mm) | 0.01 (−0.40 to 0.43) | 0.51 (0.08 to 0.93)* | 0.15 (−0.91 to 1.21) |
| CC (mm) | 0.05 (−0.09 to 0.19) | 0.03 (−0.08 to 0.14) | 0.13 (−0.11 to 0.37) |
| AL/CC | −0.01 (−0.06 to 0.04) | 0.05 (−0.003 to 0.11) | −0.05 (−0.17 to 0.08) |
Each value represents a separate regression model with height, weight or BMI used as the independent variable and the refraction or individual ocular biometrics used as the dependent variable. We controlled for gender, parental myopia, family income, reading and writing distance and time spent outdoors. Data in parentheses represents the 95% CI.
*P<0.05; **p<0.01.
ACD, anterior chamber depth; AL, axial length; BMI, body mass index; CC, corneal curvature; CCT, central corneal thickness; LT, lens thickness; SER, spherical equivalent refraction; VCD, vitreous chamber depth.