Table 2.

Univariable and multivariable analysis for survival in patients with stage IIIb amyloidosis

Univariable analysis (249 patients)
VariablesHazard ratio95% CIP
Sex, male 1.22 0.96-1.67 0.158 
NYHA class I 0.57 0.37-0.89 0.014 
Troponin I > 0.500 ng/mL 1.50 1.10-2.50 0.010 
NT-proBNP(ln), ng/L 1.53 0.81-2.87 0.186 
eGFR < 30 mL/min × 1.73 m2 0.71 0.52-0.96 0.028 
LC isotype κ vs λ 1.18 0.84-1.66 0.326 
dFLC > 50 mg/L 0.53 0.26-1.09 0.083 
dFLC > 180 mg/L 1.17 0.87-1.56 0.296 
dFLC > 500 mg/L 1.94 1.43-2.63 <0.001 
BMPC > 20% 1.03 0.65-1.63 0.888 
Bortezomib-based treatment, yes 0.85 0.65-1.12 0.254 
Treatment with CyBorD, yes 0.81 0.59-1.11 0.192 
Treatment with BMDex, yes 1.22 0.85-1.74 0.274 
Treatment with MDex, yes 1.02 0.77-1.35 0.906 
Univariable analysis (249 patients)
VariablesHazard ratio95% CIP
Sex, male 1.22 0.96-1.67 0.158 
NYHA class I 0.57 0.37-0.89 0.014 
Troponin I > 0.500 ng/mL 1.50 1.10-2.50 0.010 
NT-proBNP(ln), ng/L 1.53 0.81-2.87 0.186 
eGFR < 30 mL/min × 1.73 m2 0.71 0.52-0.96 0.028 
LC isotype κ vs λ 1.18 0.84-1.66 0.326 
dFLC > 50 mg/L 0.53 0.26-1.09 0.083 
dFLC > 180 mg/L 1.17 0.87-1.56 0.296 
dFLC > 500 mg/L 1.94 1.43-2.63 <0.001 
BMPC > 20% 1.03 0.65-1.63 0.888 
Bortezomib-based treatment, yes 0.85 0.65-1.12 0.254 
Treatment with CyBorD, yes 0.81 0.59-1.11 0.192 
Treatment with BMDex, yes 1.22 0.85-1.74 0.274 
Treatment with MDex, yes 1.02 0.77-1.35 0.906 
Multivariable analysis (173 patients with eGFR > 30 mL/min × 1.73 m2)
NYHA class I 0.80 0.48-1.33 0.392 
Troponin I > 0.500 ng/mL 1.22 0.81-1.83 0.340 
dFLC > 500 mg/L 1.83 1.28-2.62 0.001 
Multivariable analysis (173 patients with eGFR > 30 mL/min × 1.73 m2)
NYHA class I 0.80 0.48-1.33 0.392 
Troponin I > 0.500 ng/mL 1.22 0.81-1.83 0.340 
dFLC > 500 mg/L 1.83 1.28-2.62 0.001 

BMDex, bortezomib, melphalan, and dexamethasone; CI, confidence interval; CyBorD, cyclophosphamide, bortezomib, and dexamethasone; LC, light chains.

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