Table 1: Demographic characteristics.

VariableTotal sample 

Age (years)
Males/females [ (%)]27 (79.4)/7 (20.6)
Ethnicity: New Zealand European [ (%)]31 (91.2)
University education [ (%)]11 (32.4)
Married [ (%)]26 (76.5)
Retired [ (%)]26 (76.5)
Medical history [ (%)]
 Myocardial infarction22 (64.7)
 Angina20 (58.8)
 Coronary artery bypass graft surgery11 (32.4)
 Coronary artery stent10 (29.4)
 Coronary artery angioplasty4 (11.8)
Medications [ (%)]
  Beta-blockers27 (79.4)
  ACE-inhibitors9 (26.5)
  Calcium channel blockers3 (8.8)
  Aspirin28 (82.4)
  Lipid lowering drugs29 (85.3)
  GTN spray1 (2.9)
  Nitrates2 (5.9)
  Diuretics3 (8.8)

ACE: Angiotensin converting enzyme; GTN: Glyceryl trinitrate.