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Table 1 Baseline data characteristics of the 168 participants and comparison among the PPAL, FPAL, and SVL groups

From: Two-year longitudinal change in choroidal and retinal thickness in school-aged myopic children: exploratory analysis of clinical trials for myopia progression

Parametera

Total (n = 168)

PPALs (n = 59)

FPALs (n = 48)

SVLs (n = 61)

P

Age (years)

9.3 ± 1.1

9.2 ± 1.1

9.4 ± 1.1

9.2 ± 1.1

0.472

Male, n (%)

88 (52.4%)

32 (54.2%)

23 (47.9%)

33 (54.1%)

0.849

SER (D)

− 2.38 ± 0.61

− 2.41 ± 0.68

− 2.34 ± 0.56

− 2.39 ± 0.57

0.852

VA (logMAR)

0.00 ± 0.02

0.00 ± 0.02

− 0.01 ± 0.02

− 0.01 ± 0.03

0.222

AL (mm)

24.58 ± 0.72

24.55 ± 0.71

24.58 ± 0.78

24.61 ± 0.69

0.900

Subfoveal CT (µm)

231.03 ± 54.04

231.60 ± 51.84

230.46 ± 57.36

231.65 ± 56.77

0.981

RT (µm)

251.12 ± 15.91

250.58 ± 15.15

252.31 ± 17.11

251.18 ± 15.73

0.853

ΔSER1 (D)

− 1.02 ± 0.43

− 1.08 ± 0.42

− 1.00 ± 0.37

− 0.99 ± 0.48

0.376

ΔSER2 (D)

− 0.47 ± 0.38

− 0.47 ± 0.36

− 0.48 ± 0.37

− 0.45 ± 0.40

0.923

ΔAL1 (mm)

0.36 ± 0.15

0.38 ± 0.14

0.35 ± 0.13

0.36 ± 0.17

0.688

ΔAL2 (mm)

0.29 ± 0.13

0.29 ± 0.12

0.29 ± 0.13

0.30 ± 0.13

0.936

ΔCT1 (µm)

− 7.98 ± 23.61

− 12.01 ± 25.97

− 8.15 ± 22.06

− 3.67 ± 21.85

0.155

ΔCT2 (µm)

− 16.64 ± 25.631

− 17.42 ± 26.45

− 13.43 ± 27.03

− 18.46 ± 23.72

0.578

  1. PPALs= personalized progressive addition lenses; FPALs= fixed progressive addition lenses; SVLs= single vision lenses; n= number; D= dioptre; SER= spherical equivalent of refraction; logMAR= logarithm of the minimum angle of resolution; VA= visual acuity; AL= axial length; CT= choroidal thickness; RT= retinal thickness
  2. aThe means ± standard deviations for age, SER, VA, and AL; P values based on ANOVA. ΔSER1, the change of spherical equivalent of refraction in the first year; ΔSER2, the change of spherical equivalent of refraction in the second year; ΔAL1, the change of axial length in the first year; ΔAL2, the change of axial length in the second year; ΔCT1, the change of subfoveal choroidal thickness in the first year; ΔCT2, the change of subfoveal choroidal thickness in the second year