Table 1 Quantitative features of pregnant mothers and their infants according to the state of expose / non-expose to SHS.

From: Relationships of the serum levels of toxic trace elements in pregnant women versus exposure to second-hand smoke

Quantitative features

Non-Expose to SHS (n = 43)

Expose to SHS (n = 68)

Total

(n = 111)

p-value

Age (year)

28.163 ± 6.82

32.250 ± 5.42

30.67 ± 6.30

< 0.001*

BMI (\(\:\raisebox{1ex}{$\varvec{k}\varvec{g}$}\!\left/\:\!\raisebox{-1ex}{${\varvec{m}}^{2}$}\right.\))

29.70 ± 4.03

30.70 ± 4.38

30.31 ± 4.26

0.228

Birth weight (gr)

3161.63 ± 463.15

3351.47 ± 495.20

3277.93 ± 489.79

0.046*

Birth length (cm)

50.67 ± 3.52

51.73 ± 3.26

51.32 ± 3.39

0.109

Head circumference (cm)

32.46 ± 3.31

31.97 ± 2.82

32.16 ± 3.01

0.403

  1. *Significant test in level 0.05.
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