Table 1

Characteristics of pregnancies with diabetes in Sweden 1998–2012

1998–20002001–20032004–20062007–20092010–2012
N261 450283 917305 703321 806334 823
Body mass index (BMI) (kg/m2)***24.28 (24.26 to 24.30) (219 405)24.50 (24.48 to 24.51) (245 421)24.57 (24.56 to 24.59) (267 813)24.61 (24.60 to 24.63) (292 927)24.75 (24.74 to 24.77) (314 140)
BMI 30–34.9 kg/m27.2% (15 705)7.7% (18 802)7.9% (21 238)8.3% (24 251)9.0% (28 238)
BMI ≥35.0 kg/m22.5% (5475)3.1% (7495)3.4% (9014)3.5% (10 385)3.8% (11 911)
Maternal age at birth (years)***29.50 (29.48 to 29.52) (261 450)29.92 (29.90 to 29.94) (283 917)30.28 (30.26 to 30.30) (305 703)30.32 (30.30 to 30.34) (321 806)30.32 (30.31 to 30.34) (334 823)
Percentage of Nordic origin***84.2% (220 262)83.3% (236 423)81.7% (249 638)79.3% (255 138)76.5% (256 022)
Percentage of South Asian0.5% (1370)0.6% (1690)0.7% (2177)0.9% (2867)1.0% (3358)
Percentage of North African1.8% (4794)1.6% (4641)1.7% (5117)2.2% (7035)3.0% (10 138)
Percentage of Middle East4.0% (10 358)4.1% 11 706)4.5% (13 718)5.2% (16 603)5.8% (19 306)
Percentage of Other9.4% (24 666)10.4% (29 457)11.5% (35 053)12.5% (40 163)13.7% (45 999)
Type 1 diabetes (%)***0.38 (1000)0.44 (1236)0.48 (1454)0.48 (1547)0.47 (1575)
Type 2 diabetes (%)***0.03 (85)0.04 (122)0.04 (127)0.06 (193)0.10 (346)
Gestational diabetes (%)***0.86 (2245)0.99 (2815)0.92 (2820)1.13 (3634)1.17 (3915)
  • Means shown are mean (95% CIs).

  • ***p<0.001 across the year groups.