Table 1.

Characteristics of the Patients at Baseline.^*

Characteristic	CABG Group (N = 610)	Medical-Therapy Group (N = 602)
Median age (IQR) — yr	60 (54–68)	59 (53–67)
Female sex — no. (%)	73 (12)	75 (12)
Race or ethnic group — no. (%)†
Hispanic, Latino, or nonwhite	221 (36)	200 (33)
White	389 (64)	402 (67)
Median body-mass index (IQR)‡	27 (24–30)	27 (24–30)
Medical history — no. (%)
Previous myocardial infarction	462 (76)	472 (78)
Hyperlipidemia	360 (59)	370 (62)§
Hypertension	358 (59)	370 (61)
Diabetes	240 (39)	238 (40)
Previous stroke	51 (8)	41 (7)
Chronic renal insufficiency	49 (8)	45 (7)
Previous percutaneous coronary intervention	82 (13)	74 (12)
Previous CABG	22 (4)	14 (2)
Current smoker — no. (%)	130 (21)	122 (20)
CCS angina class — no. (%)¶
No angina	217 (36)	225 (37)
I	96 (16)	91 (15)
II	265 (43)	260 (43)
III	25 (4)	23 (4)
IV	7 (1)	3 (<1)
NYHA heart failure class — no. (%)¶
I	65 (11)	74 (12)
II	319 (52)	307 (51)
III	207 (34)	205 (34)
IV	19 (3)	16 (3)
Median systolic blood pressure (IQR) — mm Hg	120 (110–130)	120 (110–130)
Median pulse rate (IQR) — beats/min	74 (66–82)	72 (65–80)
Median 6-min walk distance (IQR) — ft∥	1145 (863–1320)	1115 (840–1345)

^*There were no significant differences in baseline characteristics between the treatment groups. CABG denotes coronary-artery bypass grafting, and IQR interquartile range.

^†Race and ethnic group were self-reported.

^‡The body-mass index is the weight in kilograms divided by the square of the height in meters.

^§Data on hyperlipidemia were missing for 1 patient.

^¶The Canadian Cardiovascular Society (CCS) angina classes range from I to IV, with higher classes indicating more disabling pain due to angina. New York Heart Association (NYHA) heart failure classes range from I to IV, with higher values indicating greater disability.

^∥To convert the values for the 6-minute walk distance to meters, multiply by 0.305.