Table 2

 Baseline characteristics of 458 randomized participants

Control group (n=237)Intervention group (n=221)
Age (years)*49.1 (6.55)48.7 (6.82)
Body mass index*25.4 (2.60)25.1 (2.39)
Systolic blood pressure (mm Hg)*†136.9 (21.1)136.6 (20.1)
Diastolic blood pressure (mm Hg)*†88.5 (12.0)88.5 (12.5)
Total cholesterol (mg/dL; 1 mg/dL=0.03 mmol/L)* 282.0 (55.6)281.3 (63.4)
Triglycerides (mg/dL; 1 mg/dL=0.01 mmol/L)* 185.9 (132.9)189.0 (199.1)
Fasting glucose (mg/dL; 1 mg/dL=0.06 mmol/L)*82.2 (11.6)84.0 (12.9)
Uric acid (mg/dL; 1 mg/dL=59.48 µmol/L)*6.7 (1.55)6.7 (1.55)
Marital status
 Married206 (86.9)204 (92.3)
 Single/divorced/widowed31 (13.1)17 (7.7)
Presenting event related to coronary heart disease
 Myocardial infarction203 (85.7)192 (86.9)
 Acute angina or coronary insufficiency34 (14.3)29 (13.1)
Smoking status
 Smokers at admission163 (68.8)158 (71.5)
Alcohol use at admission (kcal; 1 kcal=4.18 kJ)
 Non-drinker 64 (27.0)60 (27.2)
 Light (<200 kcal/day)86 (36.3)78 (35.3)
 Moderate (200-500 kcal/day)44 (18.6)37 (16.7)
 Heavy (>200 kcal/day)43 (18.1)46 (20.8)
Dyspnea
 No dyspnea148 (62.4)133 (60.2)
 On severe exertion69 (29.1)62 (28.0)
 On mild exertion/at rest20 (8.4)26 (11.8)
Glucose metabolism§
 Normal171 (72.2)157 (71.0)
 Prediabetes53 (22.4)46 (20.8)
 Diabetes13 (5.5)18 (8.1)

Data are no (%) of participants unless stated otherwise.

*Data are mean (standard deviation).

†Blood pressure measured in 5 unit intervals.

§Glucose response classification based on results of a challenge of 50 mg oral glucose, according to 1968 criteria of Joplin and Wright.83