GDM 2nd Pregnancy GDM 2nd Pregnancy GDM 2nd Pregnancy
No (n = 64) Yes (n = 146) Yes (n = 146) P-value
Australian-born 16 (25%) 23 (16%) 23 (16%) 0.11
Self-identified ethnicity Caucasian 14 (22%) 19 (13%) 19 (13%) 0.08
South Asian 28 (44%) 81 (56%) 81 (56%)
Chinese 5 (8%) 21 (14%) 21 (14%)
Middle East 7 (11%) 6 (4%) 6 (4%)
Other 9 (14%) 18 (12%) 18 (12%)
First degree family history of diabetes 31 (51%) 80 (56%) 80 (56%) 0.47
GDM first pregnancy details
GDM-medicated 1st pregnancy* 24 (38%) 69 (47%) 69 (47%) 0.19
Practiced cultural rest 1st pregnancy 25 (40%) 72 (51%) 72 (51%) 0.14
Caesarean section birth 1st pregnancy 39 (63%) 93 (65%) 93 (65%) 0.77
Baby weight n, grams, median (IQR)
40 3252 (2870–3613) 111 3110 (2850–3630) 111 3110 (2850–3630)
0.53
Baby admitted Special Care/NICU 15 (24%) 46 (32%) 46 (32%) 0.25
Duration of breastfeeding in first pregnancy (months), median (IQR) 11 (3–17) 7 (3–15) 7 (3–15) 0.16
Second pregnancy details
Maternal age (y) mean±SD 33±4 33±4 34±4 0.04
BMI at booking median, (IQR) 25 (22–27) 25 (22–27) 26 (23–30) 0.09
BMI ≥30 at booking 8 (13%) 8 (13%) 38 (26%) 0.03
Time between births (y) mean± SD 3±2 3±2 3±2 0.14