Haplotype analysis for rs10946398, rs4712523, rs4712524, rs7754840 of CDKAL1 gene
| Haplotype | GDM (%) | Non-GDM (%) | χ2 | P values | OR (95% CI) |
| CGGC | 694.97 (42.23) | 643.97 (37.72) | 7.029 | 0.008 | 1.207 (1.05 to 1.387) |
| AAAG | 930.97 (56.51) | 1040.97 (60.91) | 7.029 | 0.008 | 0.829 (0.721 to 0.952) |
| AGAG | 16.03 (0.99) | 15.03 (0.90) | 0.094 | 0.759 | 1.050 (0.210 to 5.191) |
| CAGC | 3.03 (0.19) | 3.03 (0.18) | 0.125 | 0.724 | 1.121 (0.552 to 2.273) |