Table 1.

Demographics

Variables	Overall cohort (n = 1,807)	Reduced EF (<40%) (n = 669)	Preserved EF (≥40%) (n = 769)
Age, years	79.8 ± 7.6	78.8 ± 7.2	80.0 ± 7.7*
Female	1,010 (56%)	287 (43%)	496 (65%)*
History of:
Heart failure	1,478 (82%)	662 (86%)	676 (79%)*
Coronary disease	1,290 (71%)	540 (81%)	496 (65%)*
Hypertension	1,447 (80%)	520 (78%)	634 (82%)*
Stroke	378 (21%)	126 (19%)	169 (22%)
Dementia	205 (11%)	53 (8%)	93 (12%)*
COPD	801 (44%)	283 (42%)	354 (46%)
Diabetes mellitus	811 (45%)	296 (44%)	350 (46%)
Systolic BP, mmHg	147 ± 32	139 ± 31	153 ± 32
Diastolic BP, mmHg	75 ± 19	75 ± 19	75 ± 20
Heart rate, beats/min	85 ± 21	86 ± 22	85 ± 22
Respiratory rate/min	22 ± 6	22 ± 7	22 ± 6
Hemoglobin, g/dl	11.9 ± 1.9	12.1 ± 1.9	11.7 ± 1.8*
Urea nitrogen, mg/dl	31 ± 20	33 ± 21	30 ± 20*
Serum creatinine, mg/dl	1.7 ± 1.4	1.7 ± 1.2	1.6 ± 1.2
Serum sodium, mEq/l	137 ± 5	137 ± 5	138 ± 5
Ejection fraction, %	42 ± 17	27 ± 10	56 ± 10*

^*p<.05 for difference between reduced vs. preserved and preserved EF