Age at Diagnosis of 103 Chuvash Patients With Polycythemia
| Age at Diagnosis (yr) . | No. . | % . |
|---|---|---|
| 2 to 4 | 6 | 5.8 |
| 5 to 9 | 17 | 16.5 |
| 10 to 14 | 18 | 17.5 |
| 15 to 19 | 33 | 32.0 |
| 20 to 24 | 8 | 7.8 |
| 25 to 29 | 6 | 5.8 |
| 30 to 34 | 5 | 4.9 |
| 35 to 39 | 6 | 5.8 |
| 40 and older | 4 | 3.9 |
| Age at Diagnosis (yr) . | No. . | % . |
|---|---|---|
| 2 to 4 | 6 | 5.8 |
| 5 to 9 | 17 | 16.5 |
| 10 to 14 | 18 | 17.5 |
| 15 to 19 | 33 | 32.0 |
| 20 to 24 | 8 | 7.8 |
| 25 to 29 | 6 | 5.8 |
| 30 to 34 | 5 | 4.9 |
| 35 to 39 | 6 | 5.8 |
| 40 and older | 4 | 3.9 |
Tables 1-7 review investigations of Chuvash polycythemia reported in the Russian medical literature (data from Polyakova16 and Gazenko17 ).