Table 1.

Demographic Characteristics of Study Patients Classified by Age-Group

CharacteristicsAll Patients (n=274)Low (45–64 Years) (n=97)Medium (65–79 Years) (n=121)High (80–95 Years) (n=56)
BNP = serum B-type natriuretic peptide.
a P <.01 among groups in low, medium, and high age-groups.
b P <.001 among groups in low, medium, and high age-groups.
c P <.05 among groups in low, medium, and high age-groups.
Age, years69.2±1256±9.873.1±4.183.7 ± 3.5
Men, No. (%)77 (28)34 (35)28 (23)15 (27)
Current or previous smoker, No. (%)Treatment48 (18)21 (22)18 (15)9 (16)
    Hypertension, No. (%)225 (82)78 (80)97 (80)50 (89)
    Dyslipidemia, No. (%)a87 (32)34 (35)45 (37)8 (14)
    Arrhythmia, No. (%)39 (14)16 (16)14 (12)9 (16)
    Stable angina pectoris, No. (%)26 (9)4 (4)16 (13)6 (11)
    Diabetes mellitus, No. (%)24 (8)9 (9)9 (7)6 (11)
Third heart sound, No. (%)4 (1)0 (0)3 (2)1 (2)
Venous insufficiency, No. (%)b58 (21)9 (9)26 (21)23 (41)
Leg edema, No. (%)c33 (12)6 (6)15 (12)12 (21)
Left ventricular ejection fraction, %61.2±7.161.9±6.560.9± 7.160.8±7.8
Serum creatinine, mg/dLc0.8±0.240.73±0.210.78±0.210.8±0.23
BNP, pg/mLb31.6±19.123.4±17.233.1±18.342.4±19.8