Table 2. Cox Proportional Hazards Regression Analysis of Clinically Isolated Syndrome Onseta.
| Primary analysis | HR (95% CI) | P value |
|---|---|---|
| Gravida | ||
| No | 1 [Reference] | |
| Yes | 0.68 (0.62-0.75) | <.001 |
| No. of pregnancies | ||
| 0 | 1 [Reference] | |
| 1 | 0.70 (0.61-0.79) | <.001 |
| 2 | 0.67 (0.60-0.76) | <.001 |
| ≥3 | 0.66 (0.58-0.75) | <.001 |
| Parity | ||
| No | 1 [Reference] | |
| Yes | 0.68 (0.61-0.75) | <.001 |
| No. of childbirths | ||
| 0 | 1 [Reference] | |
| 1 | 0.70 (0.62-0.79) | <.001 |
| 2 | 0.66 (0.58-0.74) | <.001 |
| ≥3 | 0.69 (0.58-0.81) | <.001 |
Abbreviation: HR, hazard ratio.
a
All analyses were adjusted for site.