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Associated factors for AE development: multivariate Cox proportional hazards models.
| Variables | Hazard ratio | 95% CI |
p Value | |
|---|---|---|---|---|
| Lower | Upper | |||
| Age, years | 1.221 | 1.054 | 1.495 | 0.0052 |
| CVD, RA | 2.473 | 0.930 | 11.21 | 0.0716 |
AE, acute exacerbation; CI, confidence interval; CVD, collagen vascular diseases; RA, rheumatoid arthritis.
