Table 2.
Demographics and Clinical Variables (N = 563).
| Patient Characteristics | Value | 95% CI |
|---|---|---|
| Age, mean ± SD, y | 60.9 ± 11.3 | 59.9-61.8 |
| Sex, No. (%) | ||
| Male | 405 (74.5) | 70.8-78.1 |
| Female | 139 (25.6) | 21.9-29.2 |
| Race, No. (%) | ||
| White | 444 (81.8) | 78.5-85 |
| African American | 88 (16.2) | 13.1-19.3 |
| Others | 11 (2) | 0.8-3.2 |
| BMI, mean ± SD, kg/m2 | 25.6 ± 5.9 | 25.1-26.1 |
| Smoking (current), No. (%) | 93 (20.8) | 17-24.5 |
| ASA status, No. (%) | ||
| 1 | 4 (0.7) | 0.02-1.4 |
| 2 | 59 (10.5) | 8-13 |
| 3 | 456 (81) | 77.8-84.2 |
| 4 | 44 (7.8) | 5.6-10 |
| 30-Day morbidity, No. (%) | ||
| None | 354 (62.9) | 58.9-66.9 |
| Present | 209 (37.1) | 33.1-41.1 |
| Length of stay, mean ± SD, d | 6.1 ± 5.8 | 5.6-6.6 |
| Operation time, mean ± SD, h | 6.6 ± 3.2 | 6.3-6.9 |
| Surgical Apgar score, No. (%) | ||
| 1-4 | 65 (11.6) | 8.9-14.2 |
| 5-6 | 280 (49.7) | 45.6-53.9 |
| 7-8 | 187 (33.2) | 29.3-37.1 |
| 9-10 | 31 (5.5) | 3.6-7.4 |
| Primary site, No. (%) | ||
| Oropharynx | 155 (27.5) | 23.8-31.2 |
| Larynx | 125 (22.2) | 18.8-25.6 |
| Hypopharynx | 19 (3.4) | 1.9-4.9 |
| Oral cavity | 199 (35.4) | 31.4-39.3 |
| Others | 65 (11.6) | 8.9-14.2 |
| AJCC stage, No. (%) | ||
| 1 | 106 (18.9) | 15.6-22.1 |
| 2 | 81 (14.4) | 11.5-17.3 |
| 3 | 100 (17.8) | 14.6-21 |
| 4A | 200 (35.6) | 31.6-39.6 |
| 4B | 35 (6.2) | 4.2-8.2 |
| Unknown | 41 (7.3) | 5-9.2 |
Abbreviations: AJCC, American Joint Committee on Cancer; ASA, American Society of Anesthesiologists; BMI, body mass index; CI, confidence interval.