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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