From: Progesterone Receptor (PGR) gene polymorphism is associated with susceptibility to preterm birth
Characteristics | Malays (N = 480) | Indians (N = 94) | Chinese (N =93) | ||||||
---|---|---|---|---|---|---|---|---|---|
Term (N = 388) | Preterm (N = 92) | P value | Term (N = 74) | Preterm (N = 20) | P value | Term (N = 70) | Preterm (N = 23) | P value | |
Maternal age | 29.2 ± 5.6 | 29.8 ± 4.1 | 0.249 | 30.0 ± 3.7 | 30.3 ± 3.7 | 0.938 | 25.9 ± 3.6 | 29.4 ± 3.5 | 0.946 |
Maternal BMI (kg/m2) | 24.3 ± 5.6 | 24.6 ± 5.4 | 0.267 | 25.6 ± 5.7 | 24.2 ± 5.5 | 0.550 | 23 ± 5.5 | 24.8 ± 4.5 | 0.329 |
Married subjects (%) | 100 | 99 | 0.974 | 98 | 99 | 0.961 | 100 | 99 | 0.920 |
Gestational diabetes (%) | 0 | 8.0 | 0.000 | 0 | 10 | 0.004 | 0 | 20 | 0.000 |
History of PTB (%) | 0 | 14 | 0.000 | 0 | 15 | 0.000 | 0 | 12 | 0.005 |
Previous miscarriage (%) | 14 | 24 | 0.017 | 19 | 26 | 0.511 | 17 | 28 | 0.288 |
Low income (%) | 2.8 | 3.0 | 3 | 5 | 1 | 0 | |||
Average income (%) | 29 | 35 | 0.212 | 55 | 31 | 0.161 | 27 | 36 | 0.593 |
High income (%) | 68 | 61 | 41 | 63 | 72 | 64 |