Table III.
Distribution of eosinophils, T lymphocytes (CD3+), B lymphocytes (CD20+), CD34+ cells and CD34+ vessels in different types of polyps.
| Allergic polyps (n=69) | Fibro-inflammatory polyps (n=47) | Hyperplastic polyps (n=11) | Group difference | Allergic vs. fibro-inflammatory | Allergic vs. hyperplastic | Fibro-inflammatory vs. hyperplastic | |
|---|---|---|---|---|---|---|---|
| Parameter | Median (IQR) | Median (IQR) | Median (IQR) | P-value | P-value | P-value | P-value |
| Eosinophils | 128.3 | 3.4 | 0 | <0.001 | <0.001 | <0.001 | 0.007 |
| (cells/20X field) | (81.5–181.6) | (0.64–8.2) | (0–0.4) | ||||
| T lymphocytes (CD3+) | 28.9 | 61.7 | 55.7 | <0.001 | <0.001 | <0.001 | 0.580 |
| (cells/20X field) | (28.5–71.9) | (35.2–112.8) | (38.1–65.4) | ||||
| Activated and memory | 19.4 | 14.3 | 12.5 | <0.001 | <0.001 | <0.001 | 0.009 |
| (CD45RO+) | (14.3–22.7) | (12.1–15.7) | (10.5–15.4) | ||||
| T lymphocytes | |||||||
| (cells/20X field) | |||||||
| B lymphocytes (CD20+) | 12.9 | 33.4 | 22.3 | <0.001 | <0.001 | <0.001 | 0.054 |
| (cells/20X field) | (10.5–23.4) | (14.7–38.2) | (12.5–33.1) | ||||
| CD34+ cells/20X field | 14.3 | 42.7 | 28.2 | <0.001 | <0.001 | <0.001 | <0.001 |
| (12.1–17.8) | (36.5–48.9) | (24.1–30.5) | |||||
| CD34+ vessels/0.5 mm2 | 60.3 | 190.3 | 127.1 | <0.001 | <0.001 | <0.001 | <0.001 |
| (55.8–62.4) | (170.7–211.9) | (117.1–132.5) |
We used the non-parametric Wilcoxon test, followed by the post-hoc Mann-Whitney test with Holm-Sidak adjustment for multiple comparisons. hpf, high-power field.