Table 2 Characteristics of older patients with CRD in WA 1992-2006, overall and by pharmacotherapy level
From: Mortality in Western Australian seniors with chronic respiratory diseases: a cohort study
Patient Characteristic | All patients | SABs | Low dose ICS | Medium dose ICS ± LABs | High dose ICS ± LABs ± OS |
|---|---|---|---|---|---|
Number of patients | 108,312 | 29,700 | 9,378 | 37,085 | 32,149 |
Average years of follow-up | 6.0 | 4.6 | 6.3 | 6.1 | 7.1 |
Person-years of follow-up | 652,273.0 | 136,498.5 | 59,041.5 | 227,039.4 | 229,693.6 |
Number of deaths at the end of follow-up | 9,943 | 2,494 | 823 | 2,432 | 4,194 |
Mortality rate (per 100,000 person-years) | 1,524.4 | 1,827.1 | 1,393.9 | 1,071.2 | 1,826.3 |
Mean age at start of follow-up | 72.7 ± 7.0 | 74.7 ± 7.6 | 72.7 ± 6.8 | 71.4 ± 6.4 | 72.3 ± 6.7 |