| All Races | White | Black |
---|---|---|---|
Population: PPROM | 2105 | 1311 | 763 |
Population: N | 254740 | 211308 | 39190 |
Population risk | 0.008 (0.008–0.008) | 0.006 (0.006–0.006) | 0.019 (0.018–0.020) |
Siblings: sibpairs with both siblings affected | 88 | 37 | 49 |
Siblings: sibpairs with first sibling affected | 1300 | 883 | 393 |
Sibling risk | 0.068 (0.054–0.082) | 0.042 (0.029–0.055) | 0.125 (0.092–0.158) |
λS | 8.2 (6.5–9.9) | 6.8 (4.6–8.9) | 6.4 (4.7–8.1) |
Sib-sib unadjusted OR (95% CI) | 10.8 (8.6–13.5) | 8.8 (6.3–12.4) | 8.8 (6.4–12.1) |
Sib-sib adjusted OR (95% CI)# | 9.6 (7.6–12.2) | 8.5 (6.0–12.1) | 8.9 (6.4–12.5) |