Table 2.
The risk of adenoma recurrence by baseline body mass index
| Group | Body mass index, kg/m2 N=1826 | No recurrence N=1103 n (%) | Any adenoma recurrence N=723 n (%) | Any adenoma recurrence versus no recurrence RR (95% CI) | Advanced adenoma recurrence N=118 n (%) | Advanced adenoma recurrence versus no recurrence RR (95% CI) | |
|---|---|---|---|---|---|---|---|
| Overall* | < 25 | (n=466) | 305(65.5) | 161(34.5) | Ref | 27 (22.9) | Ref |
| 25–29 | (n=868) | 512(59.0) | 356(41.0) | 1.12(0.96–1.30) | 51 (43.2) | 1.05(0.67–1.65) | |
| ≥30 | (n=492) | 286(58.1) | 206(41.9) | 1.19(1.01–1.39) | 40 (33.9) | 1.62(1.01–2.57) | |
|
| |||||||
| P trend | 0.04 | 0.04 | |||||
|
| |||||||
| Male† | < 25 | (n=226) | 133(58.8) | 93(41.2) | Ref | 16 (13.6) | Ref |
| 25–29 | (n=623) | 353(56.7) | 270(43.3) | 1.08(0.90–1.29) | 36 (30.5) | 0.93(0.53–1.64) | |
| ≥30 | (n=331) | 172(52.0) | 159(48.0) | 1.22(1.01–1.48) | 32 (27.1) | 1.75(0.99–3.08) | |
|
| |||||||
| P trend | 0.03 | 0.04 | |||||
|
| |||||||
| Female† | < 25 | (n=240) | 172(71.7) | 68(28.3) | Ref | 11 (9.3) | Ref |
| 25–29 | (n=245) | 159(64.9) | 86(35.1) | 1.21(0.93–1.58) | 15 (12.7) | 1.32(0.62–2.80) | |
| ≥30 | (n=161) | 114(70.8) | 47(29.2) | 1.05(0.77–1.44) | 8 (6.8) | 1.12(0.45–2.77) | |
|
| |||||||
| P trend | 0.63 | 0.73 | |||||
*
Models adjusted for age, sex, non steroidal anti inflammatory drugs, smoking and family history of colorectal cancer
†
Models adjusted for age, non steroidal anti inflammatory drugs, smoking and family history of colorectal cancer