Table 2 Descriptive information on cohort of people with at least one hospitalization after COPD hospitalization (N = 520)
Characteristic | Total N (%) | Highera annual PM2.5 N (%) | Lowera annual PM2.5 N (%) |
|---|---|---|---|
N | N = 520 | 263 | 257 |
Sex | |||
Male | 229 (44.04) | 121 (46.01) | 108 (42.02) |
Female | 290 (55.77) | 141 (53.61) | 149 (57.98) |
Race | |||
Black | 135 (25.96) | 78 (29.66) | 57 (22.18) |
White | 371 (71.35) | 176 (66.92) | 195 (75.88) |
Other | 14 (2.69) | 9 (3.42) | 5 (1.94) |
Deceased by end of follow up | 255 (49.13) | 150 (57.25) | 105 (40.86) |
Average age at first visit | 65 years | 64 years | 66 years |