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Table 1 Descriptive statistics of the study population at baseline (n=5332)

From: Short-term effects of fine particulate matter and ozone on the cardiac conduction system in patients undergoing cardiac catheterization

 

Mean ± SD / N (%)

Age (years)

59.8 ± 11.7

BMI (kg/m2)

30.1 ± 7.2

Sex (male)

3237 (60.7)

Race

 European-Americans

3854 (72.3)

 African-Americans

1188 (22.3)

 Others

290 (5.4)

Smoking (never smoker)

2753 (51.6)

Education (high)

3231 (60.6)

Area (rural)

2953 (55.4)

CAD-index > 23 (yes)a

2418 (50.4)

History of MI (yes)

1449 (27.2)

  1. SD standard deviation, BMI body mass index, CAD coronary artery disease, MI myocardial infarction
  2. aData on CAD-index were available for 4801 participants