Table 3 Hazard ratio for outcomes of hospitalization, mortality, and heart failure hospitalization by HbA1c category among 4723 patients with heart failure and diabetes. Adjusted for age, sex, race, ethnicity, insurance, comorbidities, blood pressure, heart rate, creatinine, hemoglobin, medications, and prior utilization

 <6.5

1.12 (0.99–1.26)

1.03 (0.90–1.17)

0.95 (0.79–1.14)

0.92 (0.75–1.13)

1.32 (1.10–1.60)

1.16 (0.94–1.42)

 6.5–6.9

1.06 (0.93–1.22)

1.05 (0.91–1.22)

0.97 (0.79–1.20)

1.03 (0.83–1.29)

1.09 (0.87–1.35)

1.11 (0.88–1.41)

 7–7.9

1.04 (0.93–1.18)

1.03 (0.90–1.17)

1.07 (0.89–1.28)

1.12 (0.93–1.36)

1.03 (0.85–1.25)

1.08 (0.88–1.33)

 8–8.9

1 [ref]

1 [ref]

1 [ref]

1 [ref]

1 [ref]

1 [ref]

 ≥9

1.15 (1.03–1.29)

1.13 (1.00–1.28)

1.31 (1.11–1.55)

1.33 (1.11–1.59)

1.13 (0.94–1.36)

1.20 (0.99–1.45)