TABLE 1.
Patient Characteristics, Preoperative (n = 76)
| Variables | % or Mean |
|---|---|
| Sociodemographics | |
| Age, yr: mean ± SD | 67.3 ± 1.3 |
| Age, yr | |
| <60 | 21.0 |
| 60–69 | 36.8 |
| 70–79 | 32.9 |
| ≥80 | 9.2 |
| Female | 44.7 |
| Ethnicity | |
| White | 81.6 |
| African American | 10.5 |
| Hispanic | 6.6 |
| Asian | 1.3 |
| Education | |
| Less than high school | 10.3 |
| High school graduate (grade 12) | 30.9 |
| Some college or junior college | 35.3 |
| College graduate | 11.8 |
| Postgraduate | 11.8 |
| Income, US$ | |
| ≤35,000 | 38.3 |
| 35,001–50,000 | 18.3 |
| 50,001–100,000 | 16.7 |
| 100,001–200,000 | 18.3 |
| >200,000 | 5.0 |
| Don’t know | 3.3 |
| Marital status | |
| Single | 7.9 |
| Engaged/married | 71.0 |
| Separated/divorced | 3.9 |
| Widowed | 17.1 |
| Surgical risk factors | |
| BMI | |
| Underweight (<18.5) | 2.6 |
| Normal (18.5–24.9) | 32.9 |
| Overweight (25.0–29.9) | 39.5 |
| Obese I (30.0–34.9) | 17.1 |
| Obese II (35.0–39.9) | 5.3 |
| Obese III (≥40.0) | 2.6 |
| Karnofsky performance status | |
| 100 | 34.2 |
| 90 | 44.7 |
| 80 | 18.4 |
| ≤70 | 2.6 |
| ASA classification system | |
| 4 | 5.3 |
| 3 | 75.0 |
| 2 | 17.1 |
| 1 | 2.6 |
| Comorbidities | |
| 0 | 11.1 |
| 1 | 25.0 |
| 2 | 23.6 |
| 3 | 13.9 |
| 4 | 9.7 |
| 5 | 8.3 |
| 6 | 6.9 |
| 7 | 0.0 |
| 8 | 1.4 |
SD indicates standard deviation.