Table 1.

Baseline characteristics of patients with and without end-digit preference. Data show percentages or mean values (95% confidence intervals)

	End-digit preference (n = 105)	No end-digit preference (n = 535)
Mean age in years	60.1 (56.3 to 64.0)	64.0 (62.6 to 65.3)
Male	68.6 (55.1 to 83.0)	55.2 (50.7 to 59.6)
New York Heart Association class
I	2.6 (0 to 8.3)	4.0 (2.3 to 5.8)
II	43.6 (30.1 to 56.9)	35.5 (31.0 to 40.2)
III	45.2 (30.8 to 59.8)	52.2 (47.4 to 56.5)
IV	8.6 (0.6 to 17.6)	8.4 (5.8 to 11.2)
Race
White	54.2 (39.4 to 67.6)	58.4 (54.2 to 62.4)
Black	18.5 (6.0 to 32.1)	36.7 (32.5 to 41.1)
Other	27.3 (18.1 to 37.6)	4.9 (3.0 to 7.2)
Hispanic or Latino ethnic group	0 (0 to 3.6)	3.0 (1.6 to 4.7)
LVEF < 40%	75.7 (62.4 to 88.5)	65.8 (61.2 to 70.3)
Chronic kidney disease	59.9 (44.4 to 74.2)	56.8 (52.3 to 61.5)
COPD	19.6 (8.6 to 31.3)	20.9 (17.3 to 24.8)
Diabetes mellitus	52.8 (38.9 to 67.9)	52.2 (47.4 to 56.5)
Hypertension	63.4 (50.6 to 76.8)	77.0 (73.4 to 81.1)
Coronary artery disease	55.1 (41.4 to 69.3)	60.1 (55.6 to 64.5)
Mean blood pressure
Systolic	122.2 (115.3 to 129.0)	121.4 (119.1 to 123.8)
Diastolic	69.7 (65.8 to 73.7)	70.2 (69.1 to 71.5)
Mean serum potassium	4.0 (3.9 to 4.2)	4.1 (4.1 to 4.2)
Mean blood urea nitrogen	31.9 (26.4 to 38.2)	28.1 (26.4 to 29.9)
Mean serum creatinine	1.6 (1.4 to 1.9)	1.5 (1.4 to 1.6)
Mean weight in lbs.	165.6 (142.9 to 187.1)	172.4 (165.8 to 179.4)
Medications
ACE inhibitor or ARB	73.5 (59.3 to 87.5)	66.1 (61.7 to 70.6)
Aldosterone-receptor antagonist	41.6 (29.6 to 55.2)	31.2 (27.1 to 35.5)
Beta blocker	87.0 (76.2 to 96.7)	82.3 (78.5 to 85.7)
Digoxin	30.2 (17.1 to 42.3)	24.5 (20.3 to 29.0)
Loop diuretic	82.5 (71.4 to 93.9)	80.1 (76.2 to 83.6)
Graduated high school	82.0 (70.0 to 94.4)	75.6 (71.5 to 79.6)
Household income < $10,000 pa	23.6 (9.9 to 37.8)	22.4 (18.1 to 26.8)