Table 1.
Demographics of pregnant women by gestational diabetes mellitus status in Taiwan from 2004 to 2015.
| Variable | n | GDM | Non‐GDM | ||
|---|---|---|---|---|---|
| Total | 2,053,305 | 220,276 | (10.7) | 1,833,029 | (89.3) |
| Age at conception (years) | |||||
| 15–20 | 90,400 | 5,005 | (5.5) | 85,395 | (94.5) |
| 21–25 | 352,401 | 26,631 | (7.6) | 325,770 | (92.4) |
| 26–30 | 797,665 | 81,411 | (10.2) | 716,254 | (89.8) |
| 31–35 | 630,903 | 80,428 | (12.8) | 550,475 | (87.3) |
| 36–40 | 166,903 | 24,404 | (14.6) | 142,499 | (85.4) |
| 41–45 | 15,033 | 2,397 | (15.9) | 12,636 | (84.1) |
| Season of conception | |||||
| Spring | 521,446 | 56,581 | (10.9) | 464,865 | (89.2) |
| Summer | 485,610 | 49,815 | (10.3) | 435,795 | (89.7) |
| Autumn | 492,068 | 51,743 | (10.5) | 440,325 | (89.5) |
| Winter | 554,181 | 62,137 | (11.2) | 492,044 | (88.8) |
| Urbanization | |||||
| 1 Highly urbanized | 453,034 | 48,740 | (10.8) | 404,294 | (89.2) |
| 2 Moderately urbanized | 647,271 | 81,121 | (12.5) | 566,150 | (87.5) |
| 3 Newly urbanized | 482,702 | 42,942 | (8.9) | 439,760 | (91.1) |
| 4 General township | 288,711 | 27,079 | (9.4) | 261,632 | (90.6) |
| 5 Aged township | 28,124 | 3,384 | (12.0) | 24,740 | (88.0) |
| 6 Agricultural township | 66,357 | 7,435 | (11.2) | 58,922 | (88.8) |
| 7 Remote township | 80,879 | 9,358 | (11.6) | 71,521 | (88.4) |
| Geographic region | |||||
| North | 972,055 | 80,485 | (8.3) | 891,570 | (91.7) |
| Central | 527,171 | 34,857 | (6.6) | 492,314 | (93.4) |
| South | 500,624 | 95,716 | (19.1) | 404,908 | (80.9) |
| East | 40,868 | 8,605 | (21.1) | 32,263 | (78.9) |
| Outlying islands | 12,550 | 607 | (4.8) | 11,943 | (95.2) |
All P‐values <0.001.
GDM, gestational diabetes mellitus.