Table 1 Study cohort description including prescribed fire occurrence, smoke exposure, total visits, and readmissions for study participants
From: Prescribed fires, smoke exposure, and hospital utilization among heart failure patients
Covariates, N = 8,495 | Mean | SD | IQR |
Age (y) | 70.9 | 14.2 | 62.0—82.0 |
Urbanicity (%) | 61.9 | 42 | 10.1—100.0 |
Poverty (%) | 17.3 | 14.6 | 6.5—24.4 |
High school or more education (%) | 85 | 11.6 | 78.2 – 94.2 |
Unemployed (%) | 10.2 | 7.5 | 5.1 – 13.6 |
Median household value ($) | 185 972 | 106 814 | 109 900 – 230 600 |
Public assistance (%) | 1.9 | 3 | 0.0 – 2.8 |
| Â | N | % | Â |
White | 5398 | 63.5 | Â |
Black | 2420 | 28.5 | Â |
Other | 677 | 8 | Â |
Male | 4166 | 49 | Â |
Female | 4329 | 51 | Â |
Within 1Â km of a prescribed fire | 469 | 5.5 | Â |
Within 2Â km of a prescribed fire | 1715 | 20.2 | Â |
Within 5Â km of a prescribed fire | 5992 | 70.5 | Â |
Prescribed Fire and Smoke Day Statistics 2014–2016 | |||
| Â | Median | Mean | Max |
Prescribed fires within 1Â km | 0 | 0.06 | 5 |
Prescribed fires within 2Â km | 0 | 0.3 | 7 |
Prescribed fires within 5Â km | 1 | 1.9 | 13 |
Light smoke days | 32 | 36.2 | 168 |
Medium smoke days | 2 | 2.4 | 14 |
Heavy smoke days | 1 | 1.2 | 10 |
Medium + heavy smoke days | 3 | 3.6 | 20 |
Total smoke days | 35 | 37.8 | 188 |
Hospital Visits and Readmissions Statistics | |||
| Â | Median | Mean | Max |
Total hospital visits | 5 | 8.3 | 37 |
7-day readmissions | 0 | 0.1 | 4 |
30-day readmissions | 0 | 0.4 | 7 |