Table 1.
Characteristics of new recruit firefighters at enrollment, N = 52.
| N (%) | |
|---|---|
| Age (years) | |
| ≤29 | 37 [71] |
| 30–39 | 11 (21) |
| ≥40 | 4(7) |
| Mean ± SD (range: min–max) | 28.2 ±6.0 (19.1–45.6) |
| Body mass index (kg/m2) | |
| Normal (18.5–24.9) | 18 (15) |
| Overweight (25.0–29.9) | 28 [54] |
| Obese (≥30) | 6(11) |
| Mean ± SD | 26.4±3.7 |
| Race | |
| White | 50 [96] |
| Other | 2 (7) |
| Ethnicity | |
| Hispanic | 5 (10) |
| Non-Hispanic | 47 [90] |
| Fire exposure between enrollment and follow-up | |
| Average employment duration (months) ± SD | 26.5 ±4.3 |
| All fire incident types | |
| Average cumulative time at fire (hours) ± SDa | 27.0±8.6 |
| Average cumulative number of fire runs ± SDa | 49.2±15.0 |
| Days since most recent fire at follow-up, median (IQR) | 26 (15.8, 112.5) |
| Structure fire incidents only | |
| Average cumulative time at structure fires (hours) ± SDa | 13.2 ±6.7 |
| Average cumulative number of structure fire runs ± SDa | 15.7 ±7.3 |
| Days since most recent structure fire, median (IQR) | 41.5 (18, 141.5) |
SD standard deviation, IQR interquartile range.
a
Length of time over which this value accumulated varied by individual (range: 20–37 months).