Hematologic Characteristics and Polycythemia During NIH Evaluation
| Patient no. | Sex | Phlebotomy | Hemoglobin (g/dL) | Hematocrit (%) | Erythropoietin (mIU/mL) |
| 1 | F | Every 3–6 mo | 16.6 (11.2–15.7) | 54.6 (34.1–44.9) | 112 (2.6–18.5) |
| 2 | F | Irregular | 18.6 (11.2–15.7) | 63.5 (34.1–44.9) | 102 (2.6–18.5) |
| 3 | F | Every 3–6 mo | 11.3 (11.2–15.7) | 45.1 (34.1–44.9) | 231 (2.6–18.5) |
| 4 | F | Irregular | 10.7 (11.2–15.7) | 36.2 (34.1–44.9) | 73 (2.6–18.5) |
| 5 | F | Every 3–6 mo | 11.3 (11.2–15.7) | 38.5 (34.1–44.9) | 140 (2.6–18.5) |
| 6 | F | Every 3–6 mo | 14.2 (11.2–15.7) | 45.2 (34.1–44.9) | 19.5 (2.6–18.5) |
| 7 | M | Every 3 wk | 12.8 (13.3–17.5) | 42.6 (40.1–50.1) | 87.2 (2.6–18.5) |
| 8 | M | Every 2 mo | 19.7 (13.3–17.5) | 63.0 (40.1–50.1) | 26.2 (2.6–18.5) |
| 9 | F | Every 5 wk | 16.5 (11.2–15.7) | 51.3 (34.1–44.9) | 29.1 (2.6–18.5) |
| 10 | M | Every 6–8 wk | 16.2 (13.3–17.5) | 50.7 (40.1–50.1) | 25.8 (2.6–18.5) |
| 11 | F | Irregular | 17.9 (11.2–15.7) | 51.3 (34.1–44.9) | 18.3 (2.6–18.5) |
| 12 | F | Every 3–6 mo | 12.4 (10.6–13.2) | 40.8 (32.4–39.5) | 100 (2.6–18.5) |
| 13 | F | Every 2 mo | 13.4 (11.2–15.7) | 44.6 (34.1–44.9) | 42 (2.6–18.5) |
| 14 | M | Every 3–4 mo | 13.3 (13.3–17.5) | 46.3 (40.1–50.1) | 106 (2.6–18.5) |
Data in parentheses are normal values.