Table 2. Relationships of BMI and NT-proBNP levels in the subgroups.

	Overweight or obese: BMI≥25 kg/m2 (fmol/ml)	Normal weight: BMI<25 kg/m2 (fmol/ml)	P value
Male (n = 179)
NT-proBNP	431(316–552)	489(436–638)	<0.001
Log NT-proBNP	2.69±0.18	2.74±0.15	<0.001
Female(n = 60)
NT-proBNP	436(346–549)	513(468–686)	0.004
Log NT-proBNP	2.63±0.19	2.77±0.16	0.003
Age<65 yrs(n = 188)
NT-proBNP	417(314–537)	495(437–603)	<0.001
Log NT-proBNP	2.60±0.17	2.72±0.13	0.005
Age≥65 yrs(n = 51)
NT-proBNP	490(363–661)	795(490–1097)	0.003
Log NT-proBNP	2.69±0.20	2.88±0.18	0.001
Hypertension(n = 121)
NT-proBNP	437(306–543)	490(447–617)	0.001
Log NT-proBNP	2.62±0.19	2.75±0.15	<0.001

NT-proBNP = N-terminal proB-type natriuretic peptide; BMI = body mass index.