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. Author manuscript; available in PMC: 2014 Mar 14.
Published in final edited form as: JAMA. 2012 Aug 1;308(5):465–474. doi: 10.1001/jama.2012.8720

Table 1.

Baseline Demographic and Clinical Characteristics of Sample

Exercise (N = 1158) Usual Care (N = 1164)

N with nonmissing data BDI-II < 14 (N=821) BDI-II ≥ 14 (N=337) All Exercise Participants BDI-II < 14 (N=848) BDI-II ≥ 14 (N=316) All Usual Care Participants
Age [Years] 2322 61 (52, 69) 56 (50, 64) 59 (51, 68) 61 (53, 69) 56 (47, 63) 59 (51, 68)
Race : 2288
        Black 32% (262) 35% (115) 33% (377) 30% (254) 37% (116) 33% (377)
        White 62% (503) 59% (194) 61% (697) 64% (539) 59% (184) 61% (697)
        Other 5% (43) 7% (22) 6% (65) 5% (45) 4% (11) 6% (65)
Sex : Women 2322 31% (252) 28% (94) 30% (346) 26% (220) 28% (90) 30% (346)
Region : US 2322 88% (723) 90% (303) 89% (1026) 88% (744) 92% (292) 89% (1026)
Marital Status: Married 2315 59% (481) 53% (178) 57% (659) 61% (513) 52% (165) 58% (678)
Education: > High School 2271 63% (505) 57% (189) 62% (694) 61% (500) 51% (161) 58% (661)
Income: > $25K 2067 62% (460) 52% (156) 59% (616) 62% (459) 50% (144) 59% (603)
BDI-II 2322 6 (4, 9) 20 (16, 25) 8 (5, 15) 6 (3, 9) 20 (17, 25) 8 (4, 15)
Peak VO2 [mL/kg/min] 2268 15 (12, 18) 14 (11, 17) 14 (11, 18) 15 (12, 18) 14 (11, 17) 14 (12, 18)
Body Mass Index [kg/m2] 2316 30 (26, 34) 31 (27, 36) 30 (26, 35) 29 (26, 34) 32 (27, 37) 30 (26, 35)
Diabetes 2322 32% (261) 35% (117) 33% (378) 30% (255) 36% (115) 32% (370)
Hypertension 2309 62% (504) 61% (207) 62% (711) 57% (483) 61% (190) 58% (673)
Current Smoking 2311 14% (116) 20% (68) 16% (184) 16% (133) 21% (66) 17% (199)
NYHA Class: III or IV 2322 31% (258) 53% (177) 38% (435) 32% (269) 47% (147) 36% (416)
Angina class: None 2319 85% (694) 78% (261) 83% (955) 87% (735) 80% (252) 85% (987)
CHF Etiology: Non-Ischemic 2322 49% (399) 48% (162) 48% (561) 47% (396) 55% (173) 49% (569)
LVEF 2318 25 (20, 30) 25 (20, 30) 25 (20, 30) 25 (20, 30) 25 (20, 30) 25 (20, 30)
Six Minute Walk [meters] 2271 377 (300, 442) 351 (279, 420) 366 (296, 436) 380 (310, 440) 354 (266,) 420 373 (300, 432)
Mitral Valve Regurgitation: High 2129 11% (81) 14% (42) 12% (123) 11% (88) 15% (44) 12% (132)
    Ventricular Conduction: Normal 2263 44% (352) 42% (137) 43% (489) 44% (360) 41% (127) 43% (487)
    KCCQ Score 2322 75 (61, 86) 48 (37, 62) 68 (50, 82) 76 (61, 88)) 48 (36, 58) 69 (52, 84)
Weber Score 2268 3 (2, 3) 3 (2, 3) 3 (2, 3) 3 (2, 3) 3 (2, 3) 3 (2, 3)
Blood Urea Nitrogen 2020 21 (16, 28) 18 (15, 28) 20 (15, 28) 19 (15, 28) 21 (15, 29) 21 (15, 28)
Beta Blockade Dose [mg/day] 2302 25 (13, 50) 50 (13, 50) 38 (13, 50) 28 (13, 50) 25 (13, 50) 25 (13, 50)
Loop Diuretic Dose [mg/day] 2289 40 (1, 80) 40 (20, 80) 40 (20, 80) 40 (20, 80) 40 (20, 80) 40 (20, 80)
Any antidepressant 2322 16% (131) 35% (117) 21% (248) 17% (149) 40% (129) 23% (278)

Values are median (25th, 75th percentile) for continuous variables and % (N) of column for categorical variables.

BDI-II: Beck Depression Inventory II

NYHA: New York Heart Association

LVEF: Left ventricular ejection fraction

KCCQ: Kansas City Cardiomyopathy Questionnaire is a 23-item survey to assess quality of life in HF patients. Higher scores reflect better quality of life.

Weber Score: Weber scores reflect levels of aerobic capacity with A (peak VO2 > 20 mL/kg/min); B (peak VO2 > 16 and ≤ 20); C (peak VO2 > 10 and ≤ 16); D (peak VO2 ≤ 10).