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Table 5 Comparisons between cases of different changes of axial length

From: Factors associated with faster axial elongation after orthokeratology treatment

 

Decreased AL

Increased AL

P

Gender

2 M/7F

24 M/40F

0.335*

Parental myopia(1/2/3)

7/2/0

41/8/15

0.099*

Baseline age (years)

11.89 ± 1.90

10.00 ± 1.60

0.007†

Baseline SE (D)

−4.33 ± 0.85

−3.06 ± 1.15

0.002†

Baseline corneal power (D)

43.86 ± 1.19

42.96 ± 1.11

0.028‡

Baseline CCT (μm)

520.78 ± 30.94

536.30 ± 30.73

0.161‡

Baseline ACD (mm)

3.76 ± 0.19

3.69 ± 0.19

0.364†

Baseline AL (mm)

24.86 ± 0.66

24.86 ± 0.68

0.995‡

Change of AL (mm)

−0.06 ± 0.04

0.22 ± 0.15

<0.001†

  1. SE Spherical equivalent, D Diopter, CCT Central corneal thickness, ACD Anterior chamber depth, AL Axial length
  2. * Chi-square test
  3. †Mann-Whitney U test
  4. ‡One-way ANOVA