Table 3.

Association between hemoglobin exposure parameters and mortality in subgroups of patients defined by restrictive minimum hemoglobin concentrations*

Min Hb ≥9.5 (n = 8,797; deaths = 1749)HR (95% CI)Min Hb ≥10 (n = 5246; deaths = 990)HR (95% CI)Min Hb ≥10.5 (n = 2523; deaths = 443)HR (95% CI)
Absolute Hb, g/dl0.92 (0.83 to 1.01)0.99 (0.87 to 1.14)1.17 (0.96 to 1.43)
Trend Hb, g/dl per mo0.89 (0.64 to 1.23)1.03 (0.65 to 1.63)1.07 (0.54 to 2.13)
Hb-Var, g/dl1.64 (1.33 to 2.02)1.64 (1.22 to 2.22)1.02 (0.61 to 1.69)
  • * Adjusted for covariates and for one another. Min, minimum.