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| Group | # with CC | OR | 95% C.I. | P value |
| All subjects (n = 496) | 133 | 1.676 | 1.119–2.510 | 0.012 |
| Low risk subjects (n = 323) | 37 | 1.735 | 0.865–3.482 | 0.121 |
| Intermediate risk subjects (n = 117) | 54 | 1.000 | 0.481–2.078 | 1.000 |
| High risk subjects (n = 56) | 42 | 2.667 | 0.773–9.194 | 0.120 |
