Table 2

 Interaction between chronic kidney disease, chronic heart failure anaemia and subsequent mortality

Patient groupNumber of patients2 year death rate (%)RR (95% CI)
CHF, chronic heart failure; CKD, chronic kidney disease; CI, confidence interval; RR, relative risk
Reproduced from Herzog et al.22
CHF(−)CKD(−)Anaemia(−)8481827.71.00 (reference)
CHF(−)CKD(−)Anaemia(+)10892616.61.90 (1.87 to 1.94)
CHF(−)CKD(+)Anaemia(−)1203116.42.05 (1.96 to 2.15)
CHF(+)CKD(−)Anaemia(−)9088626.12.86 (2.82 to 2.91)
CHF(−)CKD(+)Anaemia(+)738127.33.37 (3.23 to 3.53)
CHF(+)CKD(−)Anaemia(+)4036434.63.78 (3.71 to 3.85)
CHF(+)CKD(+)Anaemia(−)713138.44.86 (4.67 to 5.05)
CHF(+)CKD(+)Anaemia(+)940445.66.07 (5.89 to 6.27)