Characteristic | No. Women | Person Years | Observed Events | Expected Events | SIR (95% CI) | p-valuea |
---|---|---|---|---|---|---|
Overall | 212 | 2469 | 32 | 10.15 | 3.15 (2.16, 4.45) | Â |
Percent Density | Â | Â | Â | Â | Â | 0.76 |
 0-10% | 59 | 688 | 8 | 3.15 | 2.54 (1.10, 5.00) |  |
 11-25% | 69 | 777 | 12 | 3.20 | 3.75 (1.94, 6.55) |  |
 26-50% | 76 | 900 | 10 | 3.41 | 2.94 (1.41, 5.40) |  |
 51 + % | 8 | 104 | 2 | 0.40 | 4.98 (0.60, 17.92) |  |