Table 3 Survival analyses for number of comorbidities and Charlson comorbidity index
From: Comorbidities in unclassifiable interstitial lung disease
Parameter | Univariate analysis (95% CI) | Multivariate analysis (95% CI) | 1-year survival (95% CI) | 3-year survival (95% CI) |
|---|---|---|---|---|
Number of comorbidities | ||||
0 | Ref | Ref | 0.91 (0.74–0.97) | 0.80 (0.56–0.92) |
1–3 | 1.07 (0.47–2.41) | 0.78 (0.34–1.81) | 0.90 (0.83–0.94) | 0.74 (0.65–0.82) |
4 or more | 1.40 (0.56–3.50) | 0.90 (0.35–2.31) | 0.86 (0.71–0.93) | 0.64 (0.46–0.78) |
≤ median (0–2) | Ref | Ref | 0.89 (0.83–0.93) | 0.79 (0.70–0.86) |
> median (3 or more) | 1.46 (0.86–2.49) | 1.12 (0.64–1.95) | 0.88 (0.78–0.94) | 0.63 (0.49–0.74) |
Charlson comorbidity index | ||||
≤ median (0) | Ref | Ref | 0.88 (0.79–0.93) | 0.77 (0.64–0.85) |
> median (1 or more) | 1.17 (0.68–2.03) | 0.75 (0.42–1.35) | 0.90 (0.83–0.94) | 0.71 (0.61–0.79) |