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Table 1 Baseline characteristics of pregnant women enrolled in Mommy’s Food

From: Validation and reproducibility of a new iodine specific food frequency questionnaire for assessing iodine intake in Norwegian pregnant women

Characteristic

N

 

Age (years), mean (SD)

135

29.3 (3.4)

Gestational weeks, mean (SD)

127

19.0 (1.3)

Pre-pregnancy BMI (kg/m2), median (p25-p75)

132

22.2 (20.6–24.3)

Marital status, n (%)

133

 

 Married

 

43 (32)

 Cohabiting

 

85 (64)

 Other

 

5 (4)

Education level, n (%)

133

 

 Elementary school

 

2 (1.5)

 High school

 

17 (13)

  ≤ 4 years university/college

 

33 (25)

  > 4 years university/college

 

81 (61)

Nicotine use in pregnancy a, yes, n (%)

132

 

  ≤ gestational week 8

 

12 (9)

  > gestational week 8

 

0

  1. aNo participants reported use of nicotine after gestational week 8. BMI, body mass index; SD, standard deviation