Table 1 Clinical characteristics.

Infantile characteristics

Sex (female)

26 (40.0)

8 (50.0)

18 (36.7)

0.347

Gestational age (weeks:days)

28:5 (3:0)

28:5 (3:2)

28:5 (2:6)

0.996

Postnatal age (weeks:days) at video recordings

11:3 (3:0)

11:3 (3:2)

11:4 (3:0)

0.854

Birth weight (g)

1093.9 (358.3)

1128.7 (421.6)

1080.3 (340.7)

0.880

Global score of HINE

64.7 (9.5)

51.1 (5.9)

69.2 (5.3)

–

Corrected age at HINE (months:weeks)

3:3 (0:5)

3:3 (0:5)

3:3 (0:5)

0.894

Categories of General movement assessments

0.071

Poor repertoire

12 (18.5)

6 (37.5)

6 (12.2)

Cramped synchronized

12 (18.5)

3 (18.8)

9 (18.4)

Chaotic

5 (7.7)

2 (12.5)

3 (6.1)

Neonatal morbidities

1-Min Apgar score^a

4.2 (2.1)

3.6 (2.3)

4.4 (2.0)

0.136

5-Min Apgar score^a

6.5 (2.2)

6.1 (2.3)

6.6 (2.1)

0.476

Bronchopulmonary dysplasia (moderate to severe)

24 (57.1)

5 (35.7)

19 (67.9)

0.767

Antenatal steroid^a

31 (48.4)

8 (50.0)

23 (47.9)

0.885

Periventricular leukomalacia

11 (16.9)

5 (31.3)

6 (12.2)

0.078

Intraventricular hemorrhage (grade III-IV)

9 (13.8)

4 (25.0)

5 (10.2)

0.207

Invasive ventilator use (days)

17 (24)

24 (33)

15 (21)

0.320

Patent ductus arteriosus

37 (56.9)

13 (81.3)

24 (49.0)

0.040*

Treatments of patent ductus arteriosus

0.073

Pharmacological closure

12 (18.5)

6 (37.5)

6 (12.2)

Surgical closure

13 (20.0)

2 (12.5)

11 (22.4)

Retinopathy of prematurity (stage 3–5)

7 (10.8)

1 (6.3)

6 (12.2)

0.671

Sepsis

13 (20.0)

4 (25.0)

9 (18.4)

0.720

Seizure

6 (9.2)

3 (18.8)

3 (6.1)

0.154

Maternal characteristics

Maternal preeclampsia

10 (15.4)

3 (18.8)

7 (14.3)

0.698

Gestational diabetes mellitus

8 (12.3)

2 (12.5)

6 (12.2)

1.000

Multiple gestations

41 (63.1)

5 (31.3)

36 (73.5)

0.002*

Maternal chorioamnionitis

26 (40.0)

6 (37.5)

20 (40.8)

0.814