Table 1.
Socio-demographic and Medical Characteristics, by BMI Group.
| BMI Stable (n=103) | BMI Decreased (n=48) | BMI Increased (n=84) | |
|---|---|---|---|
| Age at survey, years (%) | |||
| ≤49 | 1.9 | 2.1 | 2.4 |
| 50–64 | 22.4 | 14.6 | 25.0 |
| 65–79 | 51.5 | 54.2 | 52.4 |
| ≥80 | 25.2 | 29.2 | 20.2 |
| Gender (%) | |||
| Male | 67.0 | 64.6 | 53.6 |
| Female | 33.0 | 35.4 | 46.4 |
| Race/Ethnicity (%) | |||
| White, non-Hispanic | 80.6 | 62.5a | 73.8 |
| Hispanic | 4.9 | 10.4 | 9.5 |
| Black, non-Hispanic | 1 | 12.5 | 2.4 |
| Asian | 6.8 | 10.4 | 10.7 |
| Other/Mixed | 6.8 | 4.2 | 3.6 |
| Education (%) | |||
| < High school graduate | 8.7 | 16.7 | 16.7 |
| High school/GED | 26.2 | 20.8 | 29.8 |
| Vocational/Secretarial/Business | 5.8 | 4.2 | 6.0 |
| Some college | 24.3 | 25.0 | 19.1 |
| College degree | 17.5 | 18.8 | 14.3 |
| Some graduate | 6.8 | 4.2 | 6.0 |
| Graduate degree | 10.7 | 10.4 | 8.3 |
| Tumor site (%) | |||
| Colon | 11.7 | 12.5 | 9.5 |
| Rectum | 88.4 | 87.5 | 90.5 |
| Chemotherapy (%)b | 45.6 | 29.2a | 39.3 |
| Radiation (%)b | 44.7 | 29.2 | 42.9 |
| Complication >30 days | 19.4 | 14.6 | 21.4 |
| Charlson-Deyo score (%) | |||
| > 2 | 22.3 | 37.5a | 19.0 |
| ≤2 | 77.7 | 62.5 | 81.0 |
| Preoperative BMI [Mean (SD)]c | 25.9 (4.1) | 29.1a (5.8) | 26.2 (5.8) |
| Range | (17.9–37.8) | (20.8–48.6) | (13.8–51.7) |
| Current BMI [Mean (SD)]c | 25.9 (4.1) | 25.2 (5.5) | 30.6a (7.3) |
| Range | (16.8–38.9) | (16.7–44.4) | (19.5–66.8) |
| Time since surgery (yrs) [Mean (SD)] | 10.4 (5.8) | 12.5 (6.0) | 12.1 (7.4) |
| Range | (2.2–31.2) | (2.2–28.6) | (2.4–35.3) |
a
p <0.05 when being compared to stable
b
Reasons why patients may not receive neoadjuvant treatment include T1 or T2 lesions that are N0, higher rectal tumors (>12 cm), or patient refusal.
c
≥1.5 change in BMI was considered a clinically meaningful increase or decrease
BMI=body mass index; GED=general equivalency diploma, SD= Standard Deviation