Table 3.
Mean (standard deviation) and median (25%, 75%) laboratory values at interval k by number of qualifying conditions (N = 7685)
| Variable | Mean (SD) | Median (25%, 75%) | Min, Max |
|---|---|---|---|
| Hb (g/dL) | 11.4 (1.1) | 11.5 (10.8, 12.1) | 6.7, 17.5 |
| TSAT (%) | 30.3 (13.8) | 28.0 (21.0, 37.0) | 4.0, 99.0 |
| Ferritin (ng/mL) | 627.4 (327.8) | 602.0 (394.0, 830.0) | 8.0, 3433.0 |
| Epoetin alfa (1000 U/4 wks) | 56.4 (63.8) | 35.0 (15.0, 72.0) | 0.0, 440.0 |
Ferritin values were averaged over observed values within intervals k − 2, k − 1, and k, where 82% of values were observed during interval k.
Hb = hemoglobin, TSAT = transferrin saturation, U = units, wks = weeks.