Table 1 The length of the progenitor zone in cell positions and the labelling index for normal intestine and Peutz–Jeghers syndrome (PJS) polyps and statistical analysis (t test).
| n | Mean length ofprogenitor zone | SD | Labelling index (,%) | p Values | ||
|---|---|---|---|---|---|---|
| Normal | 60 | 30 | 3 | 73.30 | ||
| PJS | ||||||
| total | 110 | 46 | 7 | 74.10 | Normal vs PJS intestine: | <0.001 |
| flat | 30 | 43 | 5 | 73.30 | PJS flat vs transition: | 0.023 |
| PJS flat vs head: | 0.012 | |||||
| transition | 40 | 48 | 9 | 75.50 | PJS transition vs head: | 0.655 |
| head | 30 | 47 | 7 | 73.50 | ||
Flat, normal flat intestinal mucosa adjacent to polyp stalk; head, head of polyp; transition, transition zone between flat mucosa and hamartomatous mucosa.