Group

Preterm

Full-term

P Value

N, %

84 (60.4)

55 (39.6)

Gestational age, weeks

32 ± 3.7

38 ± 1.9

0.007

Birth weight, g

1765 ± 789

3246 ± 881

0.043

Gender (Male/Female)

2.6:1

1.9:1

0.45

Average age of onset, days

16.5

6.7

0.002

Clinical manifestation, n (%)

Apnea

72 (85.7)

4 (7.3)

0

Poor response

65 (77.3)

12 (21.8)

0

Poor feeding

44 (52.3)

35 (63.6)

0.222

Gastric retention

15 (17.8)

1 (1.8)

-

Hyperthermia

6 (7.1)

11 (20)

0.033

Hypothermia

21 (25)

5 (9)

0.025

Dyspnea stressed

19 (22.6)

6 (10.9)

0.113

No weight increase

69 (82.1)

41 (74.5)

0.294

Jaundice exacerbation

15 (17.8)

32 (58.1)

0

Abdominal distention

35 (41.6)

11 (20)

0.01

Abnormal defecation

11 (13.0)

8 (14.5)

0.806

Mortality, n (%)

25 (29.7)

25 (29.7)

0.001

Death due to quit treatment, n (%)

6 (24)

1 (25)

-

Average hospitalization, days

31

13

0.002

Average cost (RMB, Yuan)

19,350

6,843

0.007