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The correspondence of the cervical cancer case and control cohorts by age, ethnicity, and smoking habit.
| Cohort | Years of birth | Nationality, persons (%) |
Smoking habit, persons (%) | Total, persons | |
|---|---|---|---|---|---|
| Kazakh | Russian | ||||
| Case | 1945–1990 | 176 (81.11) | 41 (18.89) | 10 (4.61) | 217 |
| Control | 1942–1987 | 128 (80.00) | 32 (20.00) | 8 (5.00) | 160 |
