Table 1 Characteristics of Veterans with confirmed/probable vs. suspected carbon monoxide poisoning, 2010–2017
From: Carbon monoxide poisoning surveillance in the Veterans Health Administration, 2010–2017
Characteristic | Confirmed and Probable N = 1755 | Suspected a N = 3736 | p-value b | Combined N = 5491 |
|---|---|---|---|---|
No. (%) | No. (%) | No. (%) | ||
Injury Category: | ||||
Unintentional | 746 (42.5) | 3259 (87.2) | < 0.001 | 4005 (72.9) |
Assault | 10 (0.6) | 19 (0.5) | 0.77 | 29 (0.5) |
Intentional Self-Harm | 349 (19.9) | 222 (5.9) | < 0.001 | 571 (10.4) |
Undetermined | 650 (37) | 236 (6.3) | < 0.001 | 886 (16.1) |
Encounter setting: | ||||
Inpatient | 458 (26.1) | 277 (7.4) | < 0.001 | 735 (13.4) |
Non-VA | 23 (1.3) | 175 (4.7) | < 0.001 | 198 (3.6) |
Outpatient | 1274 (72.6) | 3284 (87.9) | < 0.001 | 4558 (83) |
Gender: | ||||
Female | 199 (11.3) | 419 (11.2) | 0.89 | 618 (11.3) |
Male | 1556 (88.7) | 3317 (88.8) | 0.89 | 4873 (88.7) |
Age groups (years): | ||||
< 44 | 429 (24.4) | 1077 (28.8) | < 0.001 | 1506 (27.4) |
45–64 | 883 (50.3) | 1704 (45.6) | 0.001 | 2587 (47.1) |
> 65 | 443 (25.2) | 955 (25.6) | 0.80 | 1398 (25.5) |
Race/Ethnicity: | ||||
AI/AN | 11 (0.6) | 29 (0.8) | 0.54 | 40 (0.7) |
Asian | 6 (0.3) | 25 (0.7) | 0.13 | 31 (0.6) |
Black | 253 (14.4) | 538 (14.4) | 0.99 | 791 (14.4) |
Hispanic/Latino | 67 (3.8) | 188 (5) | 0.05 | 255 (4.6) |
Multi-racial | 19 (1.1) | 18 (0.5) | 0.01 | 37 (0.4) |
NH/OPI | 12 (0.7) | 33 (0.9) | 0.44 | 45 (0.8) |
Unknown | 101 (5.8) | 329 (8.8) | < 0.001 | 430 (7.8) |
White | 1286 (73.3) | 2576 (69) | 0.001 | 3862 (70.3) |
%COHb blood level | ||||
Present at time of encounter b | 668 (38) | 182 (4.9) | < 0.001 | 850 (15.5) |
Blood level > 9% c | 206 (30.8) | 8 (4.4) | < 0.001 | 214 (25.2) |
Death | ||||
Died within 30 days of encounter | 26 (1.5) | 2 (0.1) | < 0.001 | 28 (0.5) |
Died within 1 year of encounter | 89 (5.1) | 11 (0.3) | < 0.001 | 100 (1.8) |