Table 2.

Distribution of hemoglobin variability parameters across the primary cohort (n = 6644)

	Mean	SD	Quartile 1	Quartile 2	Quartile 3	Quartile 4
Mean Hgb (g/dl)	12.0	0.93	6.7 to 11.5	11.6 to 12.1	12.2 to 12.6	12.7 to 15.8
Hgb slope (g/dl per month)	0.37	0.42	−1.30 to 0.09	0.10 to 0.36	0.37 to 0.65	0.66 to 2.11
Hgb-Var (g/dl)	1.13	0.55	0.05 to 0.72	0.73 to 1.04	1.05 to 1.47	1.48 to 4.39