Table 1. Detection rates of esophageal cancer and precursor lesions by gender.
|
Total (N=7381)
|
Male (N=3425)
|
Female (N=3956)
|
||||||
|---|---|---|---|---|---|---|---|---|
| Histopathology | n | % | % (Adjusted)a | n | % | n | % | P b |
| Normal or esophagitis | 5568 | 75.44 | 76.19 | 2528 | 73.81 | 3040 | 76.85 | 0.003 |
| Basal cell hyperplasia | 1574 | 21.33 | 20.67 | 785 | 22.92 | 789 | 19.94 | 0.002 |
| Squamous dysplasia | ||||||||
| Mild | 190 | 2.57 | 2.53 | 89 | 2.60 | 101 | 2.55 | 0.902 |
| Moderate | 15 | 0.20 | 0.17 | 7 | 0.20 | 8 | 0.20 | 0.984 |
| Severe | 12 | 0.16 | 0.15 | 3 | 0.09 | 9 | 0.23 | 0.137 |
| Squamous carcinoma in situ | 14 | 0.19 | 0.19 | 7 | 0.20 | 7 | 0.18 | 0.787 |
| Squamous cell carcinoma | 6 | 0.08 | 0.08 | 5 | 0.15 | 1 | 0.03 | 0.160 |
| Squamous cell carcinoma and precursor lesions | 237 | 3.21 | 3.12 | 111 | 3.24 | 126 | 3.19 | 0.892 |
| Adenocarcinoma | 2 | 0.03 | 0.02 | 1 | 0.03 | 1 | 0.03 | 1.000 |
a
Detection rates were adjusted by standard age structure of the world population (WHO, 1985).
b
P-values were derived by χ2-test or Fisher's exact test.