Table 1 Characteristics of preterm patients with a history of retinopathy of prematurity with treatment, spontaneously regressed, and full-term healthy controls.

From: Retinal and peripapillary vascular deformations in prematurely born children aged 4–12 years with a history of retinopathy of prematurity

 

tROP

patients (n = 38)

srROP patients (n = 40)

Healthy controls (n = 43)

p value

Variables

Mean ± SD

Mean ± SD

Mean ± SD

 

Gender, male/female

18/20

23/17

24/19

0.6305a

Examination age, years

8 ± 2

7 ± 2

8 ± 3

0.1061b

Gestational age, weeks

26.00 ± 2.4

26.98 ± 2.2

 

0.0105c

Birth weight, g

867.82 ± 333.5

965.8 ± 228.8

 

0.0232c

Spherical equivalent, diopters

− 3.59 ± 2.73

0.31 ± 1.91

− 1.87 ± 3.15

< 0.0001b

Last BCVA, logMAR

0.25 ± 0.20

0.13 ± 0.15

0.03 ± 0.06

< 0.0001b

Axial length, mm

22.57 ± 1.47

22.33 ± 1.04

24.06 ± 1.89

0.0002b

ROP stage

    

Stage 1 (n, %)

0, 0

10, 25

  

Stage 2 (n, %)

0, 0

23, 58

  

Stage 3 (n, %)

38, 100

7, 18

  

Treatment

    

Laser

38 (100%)

0

  
  1. ROP, retinopathy of prematurity with laser treatment; srROP, spontaneously regressed retinopathy of prematurity; SD, standard deviation; BCVA, best-corrected visual acuity.
  2. a Chi-square test.
  3. b Kruskal–Wallis test.
  4. c Wilcoxon rank sum test.
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