Association of Maternal Antibodies to HPA-1a With the HLA DRB3*0101 Allele for the 385 Women in the Study Population
| Antibodies to HPA-1a . | HLA DRB3*0101 . | |
|---|---|---|
| Positive . | Negative . | |
| Positive | 43 (35%) | 1 (0.4%)* |
| Negative | 80 | 261 |
| Total | 123 | 262 |
| Antibodies to HPA-1a . | HLA DRB3*0101 . | |
|---|---|---|
| Positive . | Negative . | |
| Positive | 43 (35%) | 1 (0.4%)* |
| Negative | 80 | 261 |
| Total | 123 | 262 |
Odds ratio = 140 (95% confidence interval 19 to 1035).
P < .00001 (Fisher's exact test).