Table 2b.
Characteristics of overall analysis cohort and sub-groups by hierarchical OSRC classes.
| Characteristics | Administrative Support (n=223)† | Cleanup on land (n=405)† | Decontamination Work (n=558)† | Cleanup on water (n=469)† | Operations (n=658)† | Response work (n=506)† |
|---|---|---|---|---|---|---|
| Age, average years±SD | 48.02±12.35 | 44.29±12.69 | 42.22±12.63 | 49.66±13.39 | 43.81±12.26 | 44.06±13.00 |
| Sex, female(%) | 83 (37.2) | 156 (38.5) | 193 (34.6) | 75 (16.0) | 75 (11.4) | 49 (9.7) |
| Race, n(%) | ||||||
| Black | 47 (21.3) | 224 (55.4) | 341 (61.1) | 65 (13.9) | 257 (39.1) | 191 (37.8) |
| Other | 15 (6.8) | 26 (6.4) | 35 (6.3) | 61 (13.0) | 60 (9.1) | 37 (7.3) |
| White | 159 (71.9) | 154 (38.1) | 182 (32.6) | 342 (73.1) | 340 (51.8) | 277 (54.9) |
| Education, n(%) | ||||||
| Less than high school | 16 (7.2) | 73 (18.0) | 112 (20.1) | 128 (27.3) | 155 (23.6) | 124 (24.6) |
| High school diploma | 49 (22.0) | 157 (38.8) | 213 (38.2) | 150 (32.0) | 233 (35.4) | 176 (34.9) |
| Some college | 76 (34.1) | 120 (29.6) | 180 (32.3) | 130 (27.7) | 209 (31.8) | 134 (26.5) |
| College grad | 82 (36.8) | 55 (13.6) | 53 (9.5) | 61 (13.0) | 61 (9.3) | 71 (14.1) |
| Smoking status, n(%) | ||||||
| Never daily smoker | 106 (47.5) | 143 (35.3) | 188 (33.7) | 172 (36.7) | 176 (26.7) | 149 (29.4) |
| Former daily smoker | 57 (25.6) | 113 (27.9) | 131 (23.5) | 144 (30.7) | 183 (27.8) | 142 (28.1) |
| Current daily smoker | 60 (26.9) | 149 (36.8) | 239 (42.8) | 153 (32.6) | 299 (45.4) | 215 (42.5) |
| Tobacco use within 2 hours before exam, n(%) | 44 (37.6) | 104 (39.7) | 162 (43.9) | 114 (38.4) | 215 (44.7) | 147 (41.2) |
| Reported passive smoke exposure, n(%) | 43 (24.3) | 72 (27.9) | 128 (33.5) | 81 (29.9) | 136 (31.7) | 85 (21.7) |
| Binge drinkers, n(%)* | 16 (9.4) | 30 (10.3) | 41 (10.4) | 52 (16.5) | 93 (19.1) | 53 (13.7) |
| Consumed alcohol within 2 hours before exam, n(%) | 0 (0.0) | 1 (0.3) | 1 (0.2) | 2 (0.5) | 3 (0.5) | 0 (0.0) |
| Consumed caffeine within 2 hours before exam, n(%) | 71 (32.1) | 110 (27.5) | 155 (28.3) | 159 (34.0) | 206 (31.6) | 134 (26.6) |
| Sleep the night before exam, mean hours±SD | 6.41±1.76 | 6.28±1.82 | 6.31±1.96 | 6.42±1.80 | 6.17±2.03 | 6.41±1.91 |
| Proportion of tasks wearing respirators, mean±SD | 0.00±0.00 | 0.10±0.29 | 0.09±0.18 | 0.07±0.08 | 0.11±0.23 | 0.07±0.15 |
| Maximum Total Hydrocarbon (THC) level, n(%) | ||||||
| <0.30 ppm | 194 (87.0) | 189 (46.7) | 20 (3.6) | 1 (0.2) | 1 (0.2) | 1 (0.2) |
| 0.30–0.99 ppm | 27 (12.1) | 213 (52.6) | 484 (86.7) | 116 (24.7) | 75 (11.4) | 20 (4.0) |
| 1.0–2.99 ppm | 2 (0.9) | 3 (0.7) | 40 (7.2) | 348 (74.2) | 498 (75.7) | 199 (39.3) |
| ≥3 ppm | 0 (0.0) | 0 (0.0) | 14 (2.5) | 4 (0.9) | 84 (12.8) | 286 (56.5) |
| Completed entire BARS exam, n(%) | 222 (99.6) | 401 (99.0) | 549 (98.4) | 462 (98.5) | 649 (98.6) | 493 (97.4) |
*
Reported ≥5 drinks on one occasion ≥12 times during the year before the clinical exam
†
Response: Stopped the oil release, flared oil/gas, applied dispersant; Support of operations: Handled oily waste; Cleanup on water: Cleanup of oil on water; Decontamination: Decontaminated vessels, equipment, personnel, wildlife; Cleanup on land: Beach cleanup; Administrative: Cooking, security, administrative, various other support jobs. See Supplementary Table 1 for more details.