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Table 1 Characteristics of the sample. Descriptive statistic – mean (SD) or% of all the predictor variables involved

From: Comparison of risks of cardiovascular events in the elderly using standard survival analysis and multiple-events and recurrent-events methods

  No. % Mean (SD)
Gender    
Male 2466 42.6  
Female 3329 57.4  
Race    
White 4855 83.8  
African American 901 15.6  
Others 39 0.67  
Education    
Less than high school 1701 29.5  
High school or above 4071 70.5  
Age group    71-72*
BMI status    
Overweight** 1192 20.6  
Obese 1762 30.4  
Hypertension drug    
Use drug 2749 47.5  
Not use drug 3040 52.5  
Smoking status    
Former smoker 2398 41.4  
Current smoker 698 12.1  
Systolic BP 5784   136.6 (21.9)
Total cholesterol 5739   211.1 (39.3)
HDL 5730   54.2 (15.7)
Diabetes    
Yes 946 16.5  
No 4786 83.5  
Family history of CVD    
Yes 1698 32.0  
No 4492 76.3  
Lipid lowering drug    
Yes 311 5.4  
No 5478 94.6  
Prior CVD    
Yes 1303 22.1  
No 4492 76.3  
  1. *Age is categorized into 13 2-year age groups, starting at age 65 (i.e., ages 65,66 forms the first group), and the last group includes 89 years old and above.
  2. **Overweight is defined as BMI > 27 in males and 25 in females; Obese is defined as BMI > 29.6 in males or 27.3 in females.