Table 1 Patient demographics (N = 172)
Variable | N (%) |
|---|---|
Age (year), mean ± SD | 55.4 ± 10.5 |
Sex | |
Male | 130(75.6) |
Female | 42(24.4) |
Location | |
Colon | 129(75) |
Rectum | 43(25) |
Histological type | |
Tubular adenoma | 115(66.9) |
Tubulovillous adenoma | 57(33.1) |
Maximum tumor diameter (cm), median (range) | 1.0(0.3–7.0) |
Smoking | |
Yes | 63(36.6) |
No | 109(63.4) |
Drinking | |
Yes | 88(51.2) |
No | 84(48.8) |
Physician | |
Experienced | 107(62.2) |
Unexperienced | 65(37.8) |
Number of tumors, mean ± SD | 4.7 ± 8.5 |