Figure 1
Figure 2
Figure 3
Distribution of non-adenomatous and adenomatous polyps by gender_
| Polyp types | Total | Men | Women | P value |
|---|---|---|---|---|
| Non-adenomatous polyps, n (%) | 70 | 38 | 32 | 0.92 |
| Hyperplastic | 50 (71.4) | 28 (73.6) | 22 (68.8) | |
| Inflamatory | 14 (20.0) | 7 (18.5) | 7 (21.8) | |
| Juvenile | 6 (8.6) | 3 (7.9) | 3 (9.4) | |
| Adenomatous polyps, n (%) | 276 | 191 | 85 | <0.01 |
| Tubular | 205 (74.4) | 151 (79.1) | 54 (46.6) | |
| Tubulovillous | 59 (21.3) | 31 (13.5) | 28 (23.7) | |
| Villous | 12 (4.3) | 9 (3.9) | 3 (2.5) |
Characteristics of the study participants_
| Characteristics of the study population | All n=346 | Men n=229 | Women n=117 | P value Obtained from chi square tests (for categorical variables) or two-sample t-test (continuous variables) comparing men and women |
|---|---|---|---|---|
| Age (years), mean (SD) | 54.1 (13.3) | 54.8 (13.1) | 52.8 (13.6) | 0.22 |
| Polyp type, n (%) | 0.02 | |||
| Non-adenomatous | 70 (20.2) | 38 (16.6) | 32 (27.1) | |
| Adenomatous | 276 (79.8) | 191 (83.4) | 85 (72.9) | |
| Polyp size (cm), n (%) | 0.84 | |||
| <1 | 147 (42.5) | 95 (41.5) | 52 (44.4) | |
| 1-2 | 134 (38.7) | 91 (39.7) | 43 (36.8) | |
| >2 | 65 (18.8) | 43 (18.8) | 22 (18.8) |
Distribution of polyps by size_
| Age group | ||||
|---|---|---|---|---|
| Grade of dysplasia | < 45 years | 45-65 years | > 65 years | P value |
| Low-grade dysplasia | 46 (70.8) | 79 (56.8) | 32 (44.4) | |
| High-grade dysplasia | 19 (29.2) | 60 (43.2) | 40 (55.6) | 0.008 |
| < 1 cm | - | 4 (2.9) | - | |
| ≥1 cm | 19 (29.2) | 56 (40.3) | 40 (55.6) | |