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Table 1 Characteristics of the sample according to smoking habits

From: Quantitative effects of tobacco smoking exposure on the maternal-fetal circulation

  Non smokers
n = 34
Smokers
n = 30
P
Characteristics    
   Age 27.6 ± 6.1 27.3 ± 5.2 0.82
   Pregnancies 2.0
[1 a 5]
3.0
[3 a 11]
0.04
   Parities 1.0
[0 a 4]
1.5
[0 a 7]
0.04
   Abortions 0.0
[0 a 3]
0.0
[ 0 a 3]
0.62
   AFI 14.0 ± 2.0 13.3 ± 2.8 0.21
   Placenta grade 1 (56%)
[0 a 2]
1(70%)
[0 a 3]
0.31
  1. Data are presented as mean ± SD or median [minimum and maximum]. AFI: amniotic fluid index. Age (years), pregnancies, abortions and parities (number), Amniotic Fluid Index(cm), Placenta grade percent type I (As classification Granumm)17. P: statistical significance