Table 3.
Relative Risk for Raynauds Phenomenon to Specific Kinship Classes of Patients with Systemic Sclerosis and their Control Families
| Cases | Controls | |||
|---|---|---|---|---|
| Relationship | Affected | Unaffected | Affected | Unaffected |
| First Degree | 16 | 4613 | 27 | 49285 |
| Second Degree | 10 | 10219 | 45 | 109834 |
| Third Degree | 9 | 10330 | 71 | 116626 |
| Fourth Degree | 39 | 63754 | 80 | 129513 |
| Logistic Regression | ||||
| Relationship | Relative Risk | Confidence Interval | P Value | |
| First Degree | 6.38 | 3.44-11.83 | 4.04e-09 | |
| Second Degree | 2.39 | 1.21 - 4.74 | 0.01224 | |
| Third Degree | 1.43 | 0.71 - 2.86 | 0.315 | |
| Fourth Degree | 0.99 | 0.68 - 1.45 | 0.955 | |