Table 2

Variations in the odds ratios of fatal and non-fatal CHD events in Norsjö because of the length and location of the follow up period. Estimations based on risk factor reductions in the Norsjö project and the Framingham risk equations

Period of follow up Prevented cases Exposure Diseased Not diseased Odds ratio
Years 1–1016Exposed2002400
Non-exposed18424161.09
Years 1–1538Exposed3002300
Non-exposed26223381.16
Years 6–1536Exposed2002400
Non-exposed16424361.24