Number | Percent | Mean | Median | |
---|---|---|---|---|
Total n = 105 | ||||
Maternal age (years) | 95 | 100 | 31 ± 5 | 31 |
Up to 25 | 15 | 14 | ||
26–35 | 71 | 75 | ||
Over 35 | 19 | 18 | ||
Gestational age at study entry, weeks | 95 | 100 | 31 ± 7 | 32 |
First trimester | 4 | 4 | ||
Second trimester | 19 | 20 | ||
Third trimester | 72 | 76 | ||
Smoking status | 105 | NA | ||
Smoked before pregnancy | 34 | 34 | ||
Smoking at study entry | 18 | 17 | ||
No smoking | 66 | 66 | ||
Education | 105 | 100 | NA | NA |
Graduated college | 48 | 46 | ||
Other | 57 | 54 | ||
Country of birth | 105 | 100 | NA | NA |
Israel | 72 | 72 | ||
Other | 28 | 28 | ||
Number of children | 100 | 100 | 1.58 ± 1.57 | 1 |
None | 28 | 29 | ||
One | 27 | 28 | ||
Two or more | 45 | 45 | ||
Preconception BMI, kg/m2 | 63 | 100 | 25 ± 6 | 24 |
Underweight (less than 18.5) | 4 | 6 | ||
Normal weight (18.5–24.9) | 31 | 49 | ||
Overweight (24.9–29.9) | 20 | 32 | ||
Obese (30–34.9) | 5 | 8 | ||
Extremely obese (35 and higher) | 3 | 5 |