Skip to main content

Table 5 One-way comparison of the risk factors in the amblyopia risk group versus the non-amblyopia risk group of preterm infants with corrected gestational age of 12 months

From: Analysis of risk factors associated with the high incidence of amblyopia in preterm infants at the corrected gestational age of 12 months

 

Risk factor

ARF group

Non-ARF group

Statistical value

P

 

Number of cases

30

98

  

General perinatal

factors

Age of mother (years)a

32.66 ± 3.49

33.26 ± 3.77

0.773

0.441

Father’s age (years)a

33.86 ± 3.91

34.94 ± 4.68

1.148

0.253

Maternal hyperemesisb

10 (33.3)

24 (24.5)

0.921

0.337

GDMb

7 (23.3)

37 (37.8)

2.118

0.146

Twin pregnanciesb

8 (26.7)

30 (30.6)

0.171

0.679

SGAb

5 (16.7)

6 (6.1)

3.251

0.071

LGAb

0 (0)

2 (2.0)

 

1.000

Complications during hospitalization

Neonatal asphyxiab

12 (40.0)

19 (19.4)

5.317

0.021*

NRDSb

17 (56.7)

57 (58.2)

0.021

0.885

BPDb

10 (33.3)

10 (10.2)

7.648

0.002**

IVHb

12 (40.0)

18 (18.4)

5.990

0.014*

Hydrocephalusb

1 (3.3)

0 (0)

 

0.234

Brain damage in white matterb

3 (10.0)

1 (1.0)

 

0.040*

Electroencephalogram abnormalitiesb

13 (43.3)

35 (35.7)

0.569

0.451

Septicaemiab

10 (33.3)

13 (13.3)

6.276

0.012*

Meningitisb

2 (6.7)

3 (3.1)

 

0.334

NECb

4 (13.3)

6 (6.1)

0.569

0.369

ROPb

5 (16.7)

6 (6.1)

6.276

0.012*

Treatment during hospitalization

Hormonesb

3 (10.0)

7 (7.1)

0.015

0.610

Blood transfusionb

10 (33.3)

16 (16.3)

4.104

0.043*

PSb

16 (53.3)

28 (28.6)

6.243

0.012*

Levothyroxineb

14 (46.7)

21 (21.4)

7.545

0.006**

Ventilator useb

23 (76.7)

71 (72.4)

0.209

0.647

Invasive ventilatorb

16 (53.5)

19 (19.4)

13.322

0.000***

Surgeryb

0(0.00)

6 (6.1)

 

0.335

Length of stay in hospital (days)a

38.36 ± 24.49

29.24 ± 19.33

-1.869

0.069

  1. Note: a is represented by \(\overline x\)±s, and the statistical value is the t value. B is expressed as the number of cases (%), and the statistical value is the \(\times\)2 value. P < 0.05 was considered statistically significant. * means P < 0.05, ** means P < 0.01, *** means P = 0.000. ARFs, amblyopia risk factors; GDM, gestational diabetes mellitus; SGA, small for gestational age; LGA, large for gestational age; NRDS, hyaline membrane disease of prematurity; PS, pulmonary surfactant; BPD, bronchopulmonary dysplasia; IVH, intraventricular hemorrhage; NEC, necrotizing enterocolitis of the newborn; ROP, retinopathy of prematurity