Table 1

Demographic characteristics of non-smoking women by exposure to SHS
Characteristic Exposure to SHS P value
Total number 1085 Yes Total number 2341 No
Maternal age (years) 28.83 ± 6.11 29.60 ± 6.20 0.001
Primiparous 674 (66.8) 1541(71.7) 0.005
Parity 2.78 ± 2.08 3.02 ± 2.20 0.003
Gravidity 3.31 ± 2.62 3.53 ± 2.67 0.03
BMI (Kg/m2) 29.69 ± 6.14 29.48 ± 5.98 0.37
Gestational diabetes mellitus 1007* 136 (13.5) 2150* 329 (15.3) 0.18
Pregnancy induced hypertension 1000* 11(1.1) 2153* 28 (1.3) 0.62
Preeclampsia 1000* 4 (0.4) 2285* 16 (0.7) 0.25
Level of education
illiterate 1000* 32 (3.2) 2230* 29 (1.3) <0.001
schools 1007* 548 (54.4) 2151* 983 (45.7)
University and above 1007* 428 (42.5) 2151* 1138(52.9)
Work status
housewife 1009* 771 (76.4) 2149* 1610(74.9) 0.24
student 1009* 104 (10.3) 2145* 266 (12.4)
employee 1007* 134 (13.3) 2157* 274 (12.7)

*Total number in the variable excluding missing data.

Data are n (%) or means ± standard deviation.

Statistical tests used were student t test, chi-square test, and Fisher exact test.

SHS = Secondhand smoke. BMI = Body mass index.

Wahabi et al.

Wahabi et al. BMC Public Health 2013 13:341   doi:10.1186/1471-2458-13-341

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