Histological type N Sex P Value Age(years) P Value Location Course(months) P Value
Male Femal Left Right Bilateral
Edematous polyps 68 28 40 0.657 52.7±11.3 0.827 20 25 12 6.1±2.5 0.268
Gelatinous polyps 19 8 11 51.3±13.1 11 8 0 6.0±2.3
Vascular polyps 30 12 18 52.0±12.7 13 17 3 6.6±2.7
Fibrous polyps 42 22 20 50.6±10.9 17 25 2 7.0±2.6