|  |  | Framingham cohort study |  | Chinese multi-provincial cohort study (CMCS) | 
         
          | Setting |  | Framingham, Massachusetts 1971 to 1983 (12 
            years follow up) |  | 11 provinces in China 1992 to 2002 (10 years 
            follow up) | 
         
          | Participants |  | 5,215 US White men and women aged 30-74 |  | 30,121 Chinese men and women aged 35-64 | 
         
          | Risk factors measured |  | BP, Smoking, DM, TC, HDL |  | BP, Smoking, DM, TC, HDL BMI, Physical activity | 
         
          | Outcome measure |  | CHD events (acute myocardial infarction, sudden 
            death, other coronary deaths) |  | CHD events (acute myocardial infarction, sudden 
            death, other coronary deaths) | 
         
          | Hard CHD events for 10 years of follow-up |  | 195 (71.4%)
 |  | 78 (28.6%)
 |  | 273 (100%)
 |  | 137 (70.6%)
 |  | 54 (28.3%)
 |  | 191 (100%)
 | 
         
          | Person-years of follow-up |  | 22,471 |  | 26,647 |  | 49,118 |  | 94,655 |  | 85,127 |  | 179,782 | 
         
          | Events per 100,000 person-years |  | 868 |  | 293 |  | 556 |  | 145 |  | 64 |  | 106 | 
         
          | 10-year event rate without |  | 8.0% |  | 2.8% |  | - |  | 1.5% |  | 0.6% |  | - |