TABLE 1.
Patient characteristics and surgical information.
| Variables | Control group (n = 47) | Treatment group (n = 47) | p value |
|---|---|---|---|
| Age, y | 57.6 (14.7) | 59.1 (12.0) | .599 |
| Sex, male | 35 (74.5) | 35 (74.5) | 1.00 |
| BMI | 25.4 (5.99) | 25.6 (5.28) | .907 |
| Race | |||
| White | 33 (70.2) | 43 (91.5) | .002 |
| African American | 12 (25.5) | 1 (2.13) | |
| Other | 2 (4.26) | 3 (6.38) | |
| Smoking status | |||
| Former | 19 (40.4) | 23 (48.9) | .342 |
| Current | 18 (38.3) | 10 (21.3) | |
| Never | 8 (17.0) | 11 (23.4) | |
| ASA | |||
| 2 | 7 (15.2) | 9 (20.0) | .793 |
| 3 | 38 (82.6) | 35 (77.8) | |
| 4 | 1 (2.17) | 1 (2.22) | |
| Surgery duration, h | 10.6 (3.01) | 11.3 (3.40) | .321 |
| Flap ischemia time, h | 2.44 (1.18) | 2.72 (1.58) | .561 |
| Baseline mean arterial pressure | 83.4 (14.1) | 83.7 (12.3) | .922 |
| Flap type | |||
| Fasciocutaneous | 23 (51.1) | 17 (43.6) | .791 |
| Musculocutaneous | 9 (20.0) | 10 (25.6) | |
| Osteocutaneous | 12 (26.7) | 12 (30.8) | |
| Other | 1 (1.19) | 0 (0) | |
| Flap stagingT classification | .137 | ||
| 0 | 7 (14.9) | 3 (6.38) | |
| 1 | 6 (17.0) | 9 (19.2) | |
| 2 | 1 (10.8) | 8 (17.0) | |
| 3 | 1 (2.13) | 7 (14.9) | |
| 4 | 25 (55.6) | 20 (42.6) | |
| N classification | .130 | ||
| 0 | 26 (55.3) | 24 (51.1) | |
| 1 | 2 (4.26) | 9 (19.2) | |
| 2 | 17 (36.0) | 13 (27.7) | |
| 3 | 2 (4.06) | 1 (2.13) | |
| Preoperative Hgb, SD | 11.5 (2.1) | 12.2 (2.11) | .11 |
Abbreviations: BMI, body mass index; ASA, American Society of Anesthesiologists (physical status); Hbg, Hemoglobin g/dL.
Note continuous variables are reported as mean (SD) and categorical variables are reported as number (%).