Table 1 Baseline characteristics of the study population.

From: Designing a bed-side system for predicting length of stay in a neonatal intensive care unit

Characteristics

Gestation (weeks)

26–32 (n = 85)

32–34 (n = 211)

34–37 (n = 267)

 > 37 (n = 273)

Perinatal factors

Multiple pregnancy

45 (52.9)

116 (51.8)

59 (22.1)

5 (1.8)

Antenatal

Infections

2 (2.3)

1 (0.45)

2 (0.7)

3 (0.9)

Maternal disease

27 (31.7)

78 (37)

59 (22.1)

17 (6.2)

Steroids

46 (54.1)

116 (54.8)

58 (21.7)

5 (1.83)

Risk factors

28 (32.9)

46 (21.8)

28 (10.4)

8 (2.9)

Umbilical doppler

Abnormal

11 (12.9)

17 (7.6)

6 (2.1)

2 (0.6)

Normal

47 (55.2)

116 (55)

116 (43.4)

90 (33)

Birth details

Gestation age*

30.07 (1.47)

33.1 (0.57)

35.4 (0.8)

38.5 (1.0)

Caesarean section

70 (82.3)

187 (88.6)

212 (79.4)

158 (57.9)

Need for PPV

6 (7.0)

7 (3.1)

5 (1.9)

6 (2.2)

Apgar 5 min, < 5

1 (1.1)

0

1 (0.3)

2 (0.73)

Gender, male

62 (72.9)

127 (60.2)

176 (65.9)

198 (72.5)

Inborn

67 (78.8)

138 (65.4)

171 (64)

95 (34.8)

Gestation, weeks*

30.1 (1.5)

33.1 (0.6)

35.5 (0.8)

38.5 (1)

Birth weight, g*

1425.4 (311.7)

1876.1 (347.8)

2236.4 (508.5)

2737 (537)

Clinical diagnosis

Respiratory distress

RDS

60 (70.5)

94 (44.5)

98 (36.7)

80 (29.3)

TTNB

16 (18.8)

22 (10.4)

40 (15)

28 (10.2)

MAS

0

0

2 (0.7)

7 (2.6)

Need for MV#

16 (18.8)

10 (4.7)

29 (10.9)

34 (12.5)

Pneumothorax

2 (2.3)

3 (1.3)

7 (2.6)

6 (2.2)

PPHN

0

0

0

2 (0.6)

Sepsis

33 (38.8)

14 (6.6)

29 (10.9)

34 (12.5)

NNH$

51 (60.0)

69 (32.7)

88 (33)

89 (32.6)

Asphyxia

0

0

2 (0.7)

20 (7.3)

Nutrition

Energy deviation, kcal/kg

IVth quartile

246.7 (67)

128.8 (66)

120.4 (53)

132.6 (47)

Remaining

143.9 (72)

46.9 (38)

40.7 (40)

39.2 (64)

Protein deviation, gram/kg

IVth quartile

7.5 (1.3)

5.1 (1.7)

4.6 (1.7)

4.1 (1.6)

Remaining

4.3 (2.4)

2.4 (1.2)

1.9 (1.5)

1.4 (1.6)

Medication

Medication received

70 (82.3)

68 (32.2)

82 (30.7)

110 (40.3)

No deviation

42 (49.4)

52 (24.6)

63 (23.5)

76 (27.8)

Deviation days^

9.5 (12.25)

2.5 (3.25)

4 (8)

3 (3.75)

Medication not required

15 (17.7)

143 (67.8)

185 (69.3)

163 (59.7)