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Rate of Acute Respiratory Disease Events by Cluster
| Variable | Incidence Rate Ratioa | 95% CI |
P | |
|---|---|---|---|---|
| Lower Limit | Upper Limit | |||
| Preserved | Reference | |||
| Interstitial predominant | 1.14 | 1.00 | 1.30 | .043 |
| Emphysema predominant | 1.32 | 1.12 | 1.56 | <.001 |
Expressed compared with the preserved cluster (eg, those individuals in the emphysema predominant cluster had 32% more acute respiratory disease events over the course of follow up than those in the preserved cluster).
