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Table 4 Mortality rate stratified by socio-demographic and clinical characteristics of the study participants

From: Effectiveness of antenatal dexamethasone in reducing respiratory distress syndrome and mortality in preterm neonates: a nested case control study

Characteristic

Category

Total N

Person time (Days)

Death N (%)

Incidence rate /1000 Neonates

RDS

Yes

110

1,052

23 (20.9)

22

No

220

1,420

0 (0)

0

ANC

Yes

157

1,057

4 (2.5)

4

No

173

1,415

19 (11)

13

Maternal NCDs

No

164

1,172

13 (7.9)

11

Yes

166

1,300

10 (6.0)

8

Gravidity

Primigravida

124

815

10 (8.1)

12

Multigravida

206

1,653

13 (6.3)

8

Birth weight

< 1000 g

17

192

6 (35.3)

31

1000-1499 g

86

800

10 (11.6)

13

1500-2499 g

221

1,458

7 (3.2)

5

≥ 2500 g

6

22

0 (0)

0

1 min APGAR score

< 7

74

643

9 (12.2)

14

≥ 7

256

1,829

14 (5.5)

8

5 min APGAR score

< 7

17

164

3 (17.6)

18

≥ 7

313

2,308

20 (6.4)

9

Mode of delivery

SVD

198

1,519

17 (8.6)

11

Caesarean section

132

953

6 (4.5)

6

Gestational age at delivery

< 32

125

1,176

18 (14.4)

15

32–34

205

1,296

5 (2.4)

4

  1. *The overall mortality rate is 0.0093042 (9/1000 neonates per day)