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. 2019 May 10;9(5):e027212. doi: 10.1136/bmjopen-2018-027212

Table 3.

Unadjusted mean values of refraction and ocular biometrics by quartiles of height, weight and BMI

Range n SER (D) AL (mm) CCT (μm) ACD (mm)
Height (cm)
 1st quartile 100.0~130.0 127 −0.48±1.13* 23.09±0.78 542.11±30.93 2.97±0.24
 2nd quartile 130.1~140.0 136 −1.08±1.46 23.58±0.98 544.96±32.69 3.05±0.28
 3rd quartile 140.1~150.7 99 −1.86±1.80 24.15±1.01 550.04±32.31 3.16±0.23
 4th quartile 150.8~182.5 120 −2.68±2.06 24.56±1.14 554.58±32.76 3.18±0.22
 P for trend† P<0.01 P<0.01 P<0.05 P<0.01
Weight (kg)
 1st quartile 20.0~30.0 129 −0.59±1.19 23.19±0.80 541.27±32.75 3.02±0.26
 2nd quartile 30.1~36.1 112 −1.12±1.30 23.58±1.00 547.64±31.34 3.04±0.26
 3rd quartile 36.2~45.0 128 −1.75±1.92 24.02±1.12 544.17±31.56 3.12±0.24
 4th quartile 45.1~82.3 113 −2.54±2.14 24.52±1.12 558.92±31.65 3.16±0.24
 P for trend P<0.01 P<0.01 P<0.01 P<0.01
BMI (kg/m2)
 1st quartile 14.0~16.5 121 −1.19±1.62 23.55±1.05 543.79±31.55 3.09±0.25
 2nd quartile 16.6~18.4 120 −1.39±1.69 23.80±1.14 545.79±32.26 3.05±0.28
 3rd quartile 18.5~20.8 120 −1.59±1.88 23.90±1.12 547.12±32.16 3.09±0.25
 4th quartile 20.9~30.6 121 −1.74±2.05 24.00±1.16 533.90±33.26 3.11±0.25
 P for trend P<0.05 P<0.01 P<0.05 P=0.32
Range n LT (mm) VCD (mm) CC (mm) AL/CC ratio
Height (cm)
 1st quartile 100.0~130.0 127 3.55±0.19 16.57±0.74 7.75±0.25 2.98±0.09
 2nd quartile 130.1~140.0 136 3.48±0.23 17.07±0.96 7.79±0.27 3.03±0.11
 3rd quartile 140.1~150.7 99 3.42±0.18 17.58±0.99 7.81±0.26 3.09±0.13
 4th quartile 150.8~182.5 120 3.41±0.19 17.97±1.12 7.78±0.25 3.16±0.14
 P for trend P<0.01 P<0.01 P=0.36 P<0.01
Weight (kg)
 1st quartile 20.0~30.0 129 3.51±0.20 16.64±0.77 7.75±0.25 2.99±0.10
 2nd quartile 30.1~36.1 112 3.49±0.21 17.07±0.97 7.78±0.28 3.03±0.11
 3rd quartile 36.2~45.0 128 3.45±0.21 17.46±1.10 7.80±0.24 3.08±0.13
 4th quartile 45.1~82.3 113 3.40±0.19 17.95±1.08 7.81±0.25 3.14±0.15
 P for trend P<0.01 P<0.01 P=0.08 P<0.01
BMI (kg/m2)
 1st quartile 14.0~16.5 121 3.45±0.18 17.01±1.05 7.73±0.26 3.05±0.12
 2nd quartile 16.6~18.4 120 3.51±0.23 17.23±1.04 7.81±0.26 3.05±0.13
 3rd quartile 18.5~20.8 120 3.46±0.20 17.38±1.11 7.81±0.26 3.06±0.14
 4th quartile 20.9~30.6 121 3.44±0.20 17.46±1.13 7.79±0.24 3.08±0.14
 P for trend P=0.37 P<0.01 P=0.19 P<0.05

*Data are expressed as means±SD.

†Tests for linear trend is performed by entering the median value of each category of the anthropometric indicator as a continuous variable in the models.

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.