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Table 1 Description of the study population: 56 male individuals with a history of coronary artery disease.

From: Changes in deceleration capacity of heart rate and heart rate variability induced by ambient air pollution in individuals with coronary artery disease

Clinical Characteristics

Mean (± SD)

Age [years]

66 (± 6)

Body mass index (BMI) [kg/m2]

28 (± 4)

  

Total number N (%)

History of myocardial infarction

43 (77)

Revascularization (CABG/PTCAa)

48 (86)

Type 2 diabetes mellitus

12 (21)

Hypertensionb

39 (70)

NYHA≥ II

17 (30)

COPD

5 (9)

Occupational status:

- Work part time or full time

4 (7)

 

- Retired

49 (88)

 

- Unable to work or unemployed

3 (5)

 

- Exposed to toxic gases, dust or

fumes at work

1 (2)

Smoking:

- Never-smoker

15 (27)

 

- Ex-smoker

41 (73)

Medication use:

- Beta-adrenergic receptor blockers

43 (77)

 

- Anti-arrhythmic therapy

2 (4)

 

- ACE-inhibitors

30 (54)

 

- Calcium-blockers

17 (30)

 

- Nitrates

24 (43)

 

- Acetylsalicylic acid (aspirin)

46 (82)

 

- Statins and Fibrates

29 (52)

  1. SD: standard deviation; CABG: coronary artery bypass graft surgery; PTCA: percutaneous transluminal coronary angioplasty; NYHA: New York Health Association functional classification; COPD: chronic obstructive pulmonary disease; ACE: angiotensin-converting enzyme.
  2. aBoth procedures had to be performed more than three months prior to enrolment.
  3. bInformation from self-administered baseline questionnaire.