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Table 1 Characteristics of women with at least two sarcoidosis-coded visits before first pregnancy (n = 182) and general population comparators without sarcoidosis (n = 6630) in Sweden, 2002–2013

From: Maternal and infant outcomes in sarcoidosis pregnancy: a Swedish population-based cohort study of first births

  Women with sarcoidosis
n = 182
Women from the general population
n = 6630
Age at delivery in years, mean ± SD 32.0 ± 4.5 30.9 ± 4.8
Country of birth, n (%)
 Nordic 169 (92.9) 5773 (87.1)
 Non-Nordic 13 (7.1) 836 (12.6)
 Missing 0 (0) 21 (0.3)
Education, n (%)
  ≤ 9 years 8 (4.4) 399 (6.0)
 10–12 years 61 (33.5) 2357 (35.6)
  ≥ 13 years 112 (61.5) 3734 (56.3)
 Missing 1 (0.6) 140 (2.1)
Body mass index at first prenatal visit, n (%)
 Underweight (< 18.5 kg/m2) 3 (1.7) 128 (1.9)
 Normal weight (18.5–24.9 kg/m2) 91 (50.0) 3851 (58.1)
 Overweight (25.0–29.9 kg/m2) 50 (27.5) 1407 (21.2)
 Obese (≥30 kg/m2) 16 (8.8) 576 (8.7)
 Missing 22 (12.1) 668 (10.1)
Smoking during first trimester, n (%)
 Smoker 6 (3.3) 362 (5.5)
 Non-Smoker 161 (88.5) 5917 (89.2)
 Missing 15 (8.2) 351 (5.3)
Pregestational diabetes, n (%) 4 (2.2) 78 (1.2)
Pregestational hypertension, n (%) 10 (5.5) 96 (1.5)