Table 4.
Odds ratios (95% CI)1 for non-advanced and advanced recurrence by weight category, using multinomial regression.
| Total Population | Men | Women | ||||
|---|---|---|---|---|---|---|
| BMI Category2 | Non-advanced Recurrence |
Advanced Recurrence3 |
Non-advanced Recurrence |
Advanced Recurrence |
Non-advanced Recurrence |
Advanced Recurrence |
| Normal Weight | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Overweight | 1.00 (0.80–1.27) | 1.21 (0.90–1.63) | 0.97 (0.73–1.29) | 1.60 (1.09–2.33) | 1.12 (0.74–1.68) | 0.79 (0.47–1.31) |
| Obese | 1.22 (0.94–1.58) | 1.07 (0.90–1.51) | 1.26 (0.91–1.75) | 1.62 (1.04–2.53) | 1.15 (0.73–1.79) | 0.53 (0.29–1.31) |
| p-trend4 | 0.15 | 0.61 | 0.17 | 0.03 | 0.49 | 0.06 |
| Waist Category5 | ||||||
| Small6 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Medium7 | 0.99 (0.75–1.32) | 0.85 (0.59–1.22) | 1.10 (0.79–1.54) | 0.91 (0.58–1.42) | 0.77 (0.45–1.32) | 0.75 (0.39–1.42) |
| Large8 | 1.05 (0.79–1.39) | 1.10 (0.77–1.56) | 1.04 (0.74–1.46) | 1.32 (0.87–2.01) | 1.09 (0.65–1.82) | 0.70 (0.36–1.36) |
| Extra Large9 | 1.25 (0.94–1.66) | 1.03 (0.71–1.50) | 1.27 (0.90–1.79) | 1.30 (0.83–2.03) | 1.26 (0.76–2.10) | 0.62 (0.31–1.23) |
| p-trend5 | 0.12 | 0.54 | 0.24 | 0.10 | 0.20 | 0.17 |
Models adjusted for age, gender, previous polyps, number of adenomas at baseline, and study.
BMI categories are normal weight, > 18.5 and <25; overweight >=25.0 and <30; and obese >30 inches.
Advanced recurrence is a recurrence of an adenoma ≥1 cm and/or with at least 25% villous histology.
P-trend calculated with multinomial logistic regression modeling with the categorical variable for body size as the independent variable.
Waist cutpoints for men (inches) small <36.5; medium 36.5–39.0; large 39.1–42.0; extra-large >42. Waist cutpoints for women (in) small <30.0; medium 30.0–33.0; large 33.2–37.0; extra-large >37.0.
The number of recurrences/number of participants per cell for small waist size were as follows: Total Population, non-advanced recurrence (167/591); Total Population, advanced recurrence (90/591); Men, non-advanced recurrence (121/400); Men, advanced recurrence (62/400); Women, non-advanced recurrence (46/191); Women, advanced recurrence (28/191).
The number of recurrences/number of participants per cell for medium waist size were as follows: Total Population, non-advanced recurrence (170/563); Total Population, advanced recurrence (77/563); Men, non-advanced recurrence (131/386); Men, advanced recurrence (54/386); Women, non-advanced recurrence (39/177); Women, advanced recurrence (23/177).
The number of recurrences/number of participants per cell for large waist size were as follows: Total Population, non-advanced recurrence (176/569); Total Population, advanced recurrence (98/569); Men, non-advanced recurrence (123/387); Men, advanced recurrence (75/387); Women, non-advanced recurrence (53/182); Women, advanced recurrence (23/182).
The number of recurrences/number of participants per cell for extra-large waist size were as follows: Total Population, non-advanced recurrence (184/538); Total Population, advanced recurrence (76/538); Men, non-advanced recurrence (129/355); Men, advanced recurrence (57/355); Women, non-advanced recurrence (55/183); Women, advanced recurrence (19/183).