Table 2. Multivariate logistic regression analysis comparing primary to secondary AML.

Parameter	Odd ratio	Confidence interval	P-value
Age (⩽60 vs >60)	2.80	1.68–4.64	<0.001
Cytogenetic analysis (normal karyotype vs others)	2.14	1.10–4.16	0.026
Cytogenetic analysis (normal karyotype vs others)	1.64	0.90–2.97	0.105
Cytogenetic analysis (normal karyotype vs others)	1.27	0.56–2.84	0.566
WBC (⩽15 000 vs >15 000)	0.50	0.30–0.85	0.011
FLT3	0.17	0.05–0.57	0.004
NPM1	0.47	0.21–1.04	0.062
DNMT3A	0.33	0.16–0.67	0.002
EZH2	5.35	1.15–25.03	0.033
BCOR	7.40	2.01–27.32	0.003
SF3B1	7.06	1.69–29.44	0.007
ASXL1	3.77	1.44–9.91	0.007

Abbreviations: AML, acute myeloid leukemia; WBC, white blood cell count.