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Table 2 Maternal and neonatal characteristics by LRTI incidence

From: The effect of exposure to particulate matter during pregnancy on lower respiratory tract infection hospitalizations during first year of life

 

Jewish origin

Arab-Bedouin origin

Without LRTI (n = 22,724)

LRTI (n = 530)

p-value

Without LRTI (n = 32,736)

LRTI (n = 1341)

p-value

Demographic characteristics

 Age, years

      

  Mean ± SD, (n)

30 ± 5 (22,724)

29 ± 5 (530)

0.203

27 ± 6 (32,736)

28 ± 6 (1341)

0.04

  Median

29

29

 

27

27

 

 Low tertile of socioeconomic status, % (n)

2.3 (485)

2.8 (14)

0.02

66.4 (21,762)

69.3 (930)

0.05

Medical and obstetrics history

 Gestational Diabetes Mellitus, % (n)

4.7 (1058)

4.7 (25)

0.94

2.6 (859)

3.9 (52)

0.005

 Primiparous, % (n)

32.1 (7290)

17.6 (93)

< 0.001

19.6 (6419)

11.6 (155)

< 0.001

Neonatal data

 Gestational age (weeks),

      

  Mean ± SD, (n)

38.8 ± 2 (22,724)

38.2 ± 2 (530)

< 0.001

39.1 ± 2 (32,736)

38.5 ± 2 (1341)

< 0.001

  Median

39

38.8

 

39.2

39

 

 Preterm delivery, % (n)

9.5 (2159)

16.8 (89)

< 0.001

9.2 (3025)

16.7 (224)

< 0.001

 Male gender, % (n)

50.7 (11,527)

56.6 (300)

0.007

51 (16,698)

54.4 (729)

0.01

 Birth weight, gram

      

  Mean ± SD, (n)

3154 ± 539 (22,724)

3062 ± 611 (530)

< 0.001

3151 ± 537 (32,736)

3045 ± 625 (1341)

< 0.001

  Median

3180

3105

 

3180

3110

 

 Small for Gestational Age (SGA), % (n)

3.3 (756)

2.8 (18)

0.90

4.4 (1440)

4.5 (60)

0.92

 Large for Gestational Age (LGA), % (n)

6.7 (1501)

5.8 (30)

0.406

6.8 (2191)

6.9 (92)

0.84

 Apgar score

  1st minute < 5, % (n)

5.3 (1185)

6.3 (33)

0.312

6.9 (2234)

10.2 (134)

< 0.001

  5th minute < 7, % (n)

0.6 (144)

0.9 (5)

0.256

0.9 (304)

2.2 (29)

< 0.001