Table 1.
Baseline demographic characteristics of cases and controls with histological attributes types of cancer cases
| Indicator | Cases | Controls |
|---|---|---|
| Kyrgyz ethnicity, N (%) | 117 (100) | 102 (100) |
| Age, mean ± SD | 53.8 ± 9.3 | 45.8 ± 8.7a |
| Urban residents, N (%) | 54 (46) | 62 (61)a |
| Tumor morphology | ||
| Infiltrating ductal carcinoma | 54 (46) | – |
| Lobular carcinoma | 40 (34) | – |
| Less prevalent types, including solid carcinoma, medullar carcinoma, fibrosarcoma, tubular adenocarcinoma | 23 (20) | – |
| Degree of differentiation | ||
| Highly differentiated | 5 (4) | – |
| Moderately differentiated | 103 (88) | – |
| Low differentiated | 9 (8) | – |
SD standard deviation
asignificant difference between groups using either t-test or 2*2 χ2 test where appropriate