Table 1.
Baseline characteristics of the conventional and HBO2 groups
| Variable | Conventional (n = 34) | HBO2 (n = 21) | P-value |
|---|---|---|---|
| Age (yr) | 42.62 ± 14.29 | 44.81 ± 17.00 | 0.6095 |
| Sex | 0.5608 | ||
| Male | 14 (41.18) | 7 (33.33) | |
| Female | 20 (58.82) | 14 (66.67) | |
| Hypertension | 0.2361a) | ||
| No | 31 (91.18) | 16 (76.19) | |
| Yes | 3 (8.82) | 5 (23.81) | |
| Diabetes mellitus | 1.0000 | ||
| No | 33 (97.06) | 21 (100.00) | |
| Yes | 1 (2.94) | 0 | |
| Smoking | 0.7866 | ||
| Non-smoker | 24 (70.59) | 13 (61.90) | |
| Current smoker | 9 (26.47) | 7 (33.33) | |
| Ex-smoker | 1 (2.94) | 1 (4.76) | |
| Pack-years | 0.7020a) | ||
| 0 | 24 (70.59) | 13 (61.90) | |
| 1–5 | 1 (2.94) | 0 | |
| 6–10 | 2 (5.88) | 4 (19.05) | |
| 11–20 | 3 (8.82) | 2 (9.52) | |
| 21–30 | 3 (8.82) | 2 (9.52) | |
| 31–40 | 1 (2.94) | 0 | |
| Mechanism of injury | 0.0529a) | ||
| Guillotine | 24 (70.59) | 10 (47.62) | |
| Crush | 10 (29.41) | 8 (38.10) | |
| Sawing | 0 | 3 (14.29) | |
| Hand | 0.2083 | ||
| Left | 25 (73.53) | 12 (57.14) | |
| Right | 9 (26.47) | 9 (42.86) | |
| Finger | 0.1949a) | ||
| First | 6 (17.65) | 6 (28.57) | |
| Second | 11 (32.35) | 9 (42.86) | |
| Third | 12 (35.29) | 2 (9.52) | |
| Fourth | 3 (8.82) | 1 (4.76) | |
| Fifth | 2 (5.88) | 3 (14.29) | |
| Geometry of injury | 0.6214a) | ||
| Volar | 11 (32.35) | 7 (33.33) | |
| Dorsal oblique | 5 (14.71) | 4 (19.05) | |
| Transverse | 8 (23.53) | 7 (33.33) | |
| Lateral oblique | 10 (29.41) | 3 (14.29) | |
| Allen classification | 0.0903a) | ||
| I | 14 (41.18) | 7 (33.33) | |
| II | 18 (52.94) | 8 (38.10) | |
| III | 2 (5.88) | 6 (28.57) | |
| Mean time to surgery (hr) | 3.46 ± 1.58 | 4.12 ± 2.60 | 0.3062 |
| Outcome | 0.4674 | ||
| Success | 16 (47.06) | 12 (57.14) | |
| Failure | 18 (52.94) | 9 (42.86) |
Values are presented as mean±SD or number (%).
HBO2, hyperbaric oxygen.
a)
Fisher exact test.