Table 3

Maternal and paternal baseline characteristics of 875 996 singleton births in Denmark in 1996–2009, according to maternal use of glucocorticoids (GCs) during pregnancy

Maternal users of GCs, n (%)Maternal never users of GCs, n (%)Maternal former users of GCs, n (%)
All42 099656 732177 165
Age at delivery (years)
 <253376 (8.0)101 264 (15.4)16 709 (9.4)
 25–2912 690 (30.1)235 419 (35.9)56 297 (31.8)
 30–3416 672 (39.6)223 127 (34.0)68 364 (38.6)
 35–397947 (18.9)83 615 (12.7)30 505 (17.2)
 >401414 (3.4)13 307 (2.0)5290 (3.0)
Smoking during pregnancy
  No33 515 (79.6)5 02 326 (76.5)1 41 429 (79.8)
  1–10 cigarettes/day5223 (12.4)97 302 (14.8)21 647 (12.2)
  11–20 cigarettes/day1593 (3.8)27 333 (4.2)7393 (4.2)
 >20 cigarettes/day248 (0.6)3791 (0.6)1088 (0.6)
  Missing1520 (3.6)25 980 (4.0)5608 (3.2)
Maternal psychiatric illness (ADHD not included)3950 (9.4)43 284 (6.6)17 930 (10.1)
Maternal ADHD39 (0.09)292 (0.04)163 (0.09)
Paternal psychiatric illness (ADHD not included)2370 (5.6)36 492 (5.6)11 515 (6.5)
Paternal ADHD51 (0.12)588 (0.09)253 (0.14)
Maternal diseases
  Diabetes702 (1.7)6555 (1.0)3013 (1.7)
  Asthma6674 (15.9)4820 (0.7)10 093 (5.7)
  COPD405 (1.0)986 (0.2)800 (0.5)
  IBD1128 (2.7)1993 (0.3)3073 (1.7)
  Other autoimmune diseases1707 (4.1)8998 (1.4)5265 (3.0)
  Infections during pregnancy19 026 (45.2)210 747 (32.1)67 977 (38.4)
Maternal BMI
  Low730 (1.7)12 374 (1.9)4244 (2.4)
  Normal11 466 (27.2)143 008 (21.8)58 237 (32.9)
  Overweight4174 (9.9)45 727 (7.0)21 515 (12.1)
  Obese and severely obese2496 (6.0)24 588 (3.7)12 795 (7.2)
  No BMI (before 2004)21 840 (51.9)411 956 (62.7)72 933 (41.2)
  Missing or very low1393 (3.3)19 079 (2.9)7441 (4.2)
Maternal marital status
  Married17 941 (42.6)290 268 (44.2)69 011 (39)
  Not married13 422 (31.9)248 501 (37.8)52 581 (30)
  Missing/not registered from 2007 and onwards*10 736 (25.5)117 963 (18)55 573 (31.4)
  • Low BMI: 15–18.4 kg/m2; normal BMI: 18.5–24.9 kg/m2; overweight: 25–29.9 kg/m2; obese and severely obese: ≥30 kg/m2. Data on BMI only available starting in 2004.

  • * N = 129 with missing information before 2007. This number is not further outlined in the table due to legislations.

  • ADHD, Attention-deficit/hyperactivity disorder; BMI, body mass index; COPD, chronic obstructive pulmonary disease; IBD, inflammatory bowel disease.