Table 3.
Proportions and mean number of moderate, severe, and any exacerbations by year after COPD diagnosis
| Total (N = 238,158) | Moderate Exacerbation n = 61,516 |
Severe Exacerbation n = 32,935 |
Any Exacerbation n = 78,367 |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Unique Patients (% of the Total Cohort) | Overall Exacerbations (% of the Total Exacerbations) | Mean (SD) Number of Exacerbations | Unique Patients (% of the Total Cohort) |
Overall Exacerbations (% of the Total Exacerbations) | Mean (SD) Number of Exacerbations | Unique Patients (% of the Total Cohort) | Overall Exacerbations (% of the Total Exacerbations) | Mean (SD) Number of Exacerbations | ||
| 61,516 (25.8) | 128,794 (69.1) | - | 32,935 (13.8) | 57,581 (30.9) | - | 78,367 (32.9) | 186,375 (100) | - | ||
| Exacerbations by Year After the COPD Index Date* | Year 1 | 26,594 (43.2) | 35,070 (27.2) | 1.32 (0.70) | 13,762 (41.8) | 17,410 (30.2) | 1.27 (0.69) | 37,430 (38.0) | 52,480 (23.2) | 1.40 (0.82) |
| Year 2 | 25,768 (41.9) | 35,046 (27.2) | 1.36 (0.76) | 11,539 (35.0) | 14,906 (25.9) | 1.29 (0.74) | 34,383 (34.9) | 49,952 (22.1) | 1.45 (0.89) | |
| Year 3 | 23,925 (38.9) | 33,005 (25.6) | 1.38 (0.79) | 10,649 (32.3) | 13,783 (23.9) | 1.29 (0.76) | 31,721 (32.2) | 46,788 (20.7) | 1.47 (0.93) | |
| Year 4 | 18,939 (30.8) | 25,673 (19.9) | 1.36 (0.76) |
8,898 (27.0) |
11,482 (19.9) | 1.29 (0.73) | 25,732 (26.1) | 37,155 (16.5) | 1.44 (0.89) | |
COPD: chronic obstructive pulmonary disease; SD: standard deviation. *Patients could have had more than one exacerbation