Table 3

Multivariate analysis (Cox regression) on the overall survival in patients with acute myeloid leukemia

VariableRR95% CIP
Karyotype* 6.894 1.728-27.498 .006 
Peak* 9.181 1.740-48.437 .009 
Amp 5.064 0 to > 1000 .751 
Sex 1.705 0.689-4.22 .248 
LDH 0.786 0.328-1.923 .610 
K trans 0 0 to > 1000 .640 
Age*† 6.494 2.454-17.181 < .001 
VariableRR95% CIP
Karyotype* 6.894 1.728-27.498 .006 
Peak* 9.181 1.740-48.437 .009 
Amp 5.064 0 to > 1000 .751 
Sex 1.705 0.689-4.22 .248 
LDH 0.786 0.328-1.923 .610 
K trans 0 0 to > 1000 .640 
Age*† 6.494 2.454-17.181 < .001 

CI indicates confidence interval; RR, relative risk; Peak, peak enhancement ratio; Amp, amplitude; LDH, lactate dehydrogenase; and K trans, volume transfer constant.

*

Relative risk is statistically significant (P < .05).

†

Age at least 50 years relative to age younger than 50 years (the reference).

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