Table 1 Baseline data of subjects.
From: Serum ferritin levels and risk of gestational diabetes mellitus: A cohort study
Variables | Control (n = 12434) | GDM (n = 3599) | P Value |
|---|---|---|---|
Age, year (median, IQR) | 30 (5) | 32 (6) | < 0.0001 |
21–29 (%) | 4933 (39.7) | 931 (25.8) |  |
30–34 (%) | 5705 (45.9) | 1711 (47.4) |  |
> 35 (%) | 1793 (14.4) | 959 (26.6) |  |
Gravida (median, IQR) | 1 (1) | 2 (1) | < 0.0001 |
Parity (median, IQR) | 0 (0) | 0 (0) | < 0.0001 |
GWG (median, IQR) | 13 (4.5) | 11 (4.8) | < 0.0001 |
BMI pre-pregnancy (median, IQR) | 20.28 (3.1) | 21.48 (3.72) | < 0.0001 |
History of GDM (frequency, ratio) | 31 (0.2%) | 54 (1.5%) | < 0.0001 |
Family history of diabetes (frequency, ratio) | 570 (4.6%) | 345 (9.6%) | < 0.0001 |
ART (frequency, ratio) | 1195 (9.6%) | 511 (14.2%) | < 0.0001 |
Multiple pregnancy (frequency, ratio) | 412 (3.3%) | 175 (4.9%) | < 0.0001 |
Progesterone exposure (frequency, ratio) | 1975 (15.9%) | 708 (19.7%) | < 0.0001 |
