Table 3.

Binary logistic test for the association between B antigen and NYHA classification III/IV with sex-specific difference in all HCM patients or in patients without diuretic therapy

NYHA classification III/IV	All patients with HCM (n=549)			Patients without diuretic (n=521)
	OR	95% CI	P value	OR	95% CI	P value
B antigen	1.649	1.166-2.333	0.005	1.717	1.202-2.454	0.003
Gender	0.839	0.594-1.186	0.321	0.813	0.568-1.163	0.257
Gender*B antigen	1.584	1.081-2.322	0.018	1.725	1.161-2.562	0.007
Male*B antigen	2.000	1.267-3.158	0.003	2.058	1.294-3.275	0.002
Female*B antigen	1.239	0.725-2.117	0.433	1.290	0.735-2.261	0.375

NYHA - New York Heart Association; HCM - hypertrophic cardiomyopathy; CI – confidence interval; OR – odds ratio