Group 1 (n=41) | Group 2 (n=25) | Group 3 (n=35) | Group 4 (n=37) | p Value | |
Mother | Rh− | Rh− | Rh− | O+ | |
Infant | Rh+ | Rh+ | Rh− | Rh+ or Rh− | |
Anti-D doses | 1 | 2 | 1 or 2 | None | |
Mother | |||||
Gravida | 3 (2) | 26.5 (1.5) | 26.5 (1.5) | 3 (2.5) | 0.8 |
Para | 2.5 (1.7) | 2 (1.7) | 2.2 (1.3) | 2.5 (2.1) | 0.6 |
Infant | |||||
Gestational age at delivery (weeks) | 39.7 (1.1) | 38.64 (1.2) | 39.4 (1.2) | 39.2 (1.3) | 0.01 |
Birth weight (g) | 3293 (416) | 3056 (574) | 3381 (505) | 3297 (435) | 0.07 |
Sex (M/F) | 18/23 | 7/18 | 16/19 | 20/17 | 0.25 |
Values are means (SD). The statistical test used was analysis of variance using the Duncan multiple comparison option.