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Table 1 The antenatal profile of pregnant women exposed to secondhand smoking versus non-exposed pregnant women

From: The impact of secondhand smoke exposure on the pregnancy outcome: a prospective cohort study among Egyptian community

Characteristics

SHS exposed women (n = 36)

SHS non-exposed women (n = 48)

p value

Age (mean ± SD)/range

27.8 ± 6.6/(20–41)

31.2 ± 6.2/ (20–45)

0.02*

Residence: no. (%): urban/rural

29 (80.5)/7 (19.5)

46 (95.8)/2 (4.2)

0.02*

Education: no. (%): illiterate/educated

16 (44.4)/20 (55.6)

18 (37.5)/30 (62.5)

0.5

Occupation: no. (%): not employed/employed

34 (94.4)/2 (5.6)

44 (91.6)/4 (8.4)

0.6

Exposure

Median (range)/IQR

Duration (years):

3 (1–11)/3.5

Exposure indexa

380 (114–1140)/553

Daily exposure (hours)

2 (0.75–4)/2

Last exposure (hours)

12 (1–36)/5

Cotinine-creatinine ratio (CCR) (ng/mg.cr)

Mean ± SD

0.1 ± 0.08

0.04 ± 0.02

0.002*

Mean rank

40.3

29.3

0.04*

(Range)/IQR

(0.01–0.2)/0.18

0.04 (0.01–0.1)/0.03

 

Gravida number

3.5 ± 2.1

3.2 ± 1.6

0.4

History of pre-eclampsia

9 (0.25)

2 (4.1)

0.005*

Current pre-eclampsia

1 (2.7)

1 (2.1)

0.8

Bronchial asthma

7 (19.4)

2 (4.1)

0.02*

Hypertension

1 (2.7)

0

0.2

CHD

1 (2.7)

0

0.2

Bronchial asthma in one child

9 (0.25)

0

< 0.001*

Weight gain (kg)

11.8 ± 5.5

11.1 ± 3.1

0.4

MAP (mm Hg)

93.6 ± 7

94.5 ± 4.2

0.4

Heart rate (beats/min)

88.6 ± 9

86.3 ± 6.6

0.1

  1. aThe exposure index is the product of no. of smokers in the house, average no. of cig/day in the presence of the pregnant women, the period of gestation in weeks
  2. *Significant