Table 4.
Multivariate analysis by event using Cox regression
| HR | 95% CI | P-value | |
|---|---|---|---|
| COPD fixed ratio | |||
| COPD | 1.83 | 1.08–3.1 | 0.025 |
| Sex | 1.1 | 0.62–1.99 | ns |
| Age | 1.01 | 0.98–1.03 | ns |
| AMIa | 1.16 | 0.68–1.98 | ns |
| Number of stenosed arteries | 1.45 | 1.08–3.11 | 0.03 |
| COPD lower limit of normality | |||
| COPD | 1.47 | 0.77–2.81 | ns |
| Sex | 1.18 | 0.66–2.13 | ns |
| Age | 1.01 | 0.99–1.04 | ns |
| AMIa | 1.27 | 0.74–2.18 | ns |
| Number of stenosed arteries | 1.45 | 1.01–2.1 | 0.046 |
Note:
a
History of previous acute myocardial infarction (AMI).
Abbreviations: AMI, acute myocardial infarction; CI, confidence interval; COPD, chronic obstructive pulmonary disease; HR, hazard ratio; ns, non-significant.