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Table 4 Sensitivity analysis of horizontal equity in incidence of preventive statin therapy: Three alternative need-weights (need-proxies) in the need-standardized analyses a : Myocardial infarction (MI), combined MI-stroke or CVD-death b

From: Is the high-risk strategy to prevent cardiovascular disease equitable? A pharmacoepidemiological cohort study

SEP indicatorc Age Horizontal Inequity gradient (IRR)ddependent on need-weights
   MI MI-stroke CVD-death
   Male Female Male Female Male Female
Income 40-64 1.17 1.23 1.18 1.15 1.39 1.36
  65-84 1.17 1.20 1.15 1.10 1.29 1.23
Educational level 40-64 1.19 1.24 1.18 1.11 1.33 1.22
  65-84 1.21 1.21 1.15 1.11 1.23 1.29
  1. a) Need-standardized Poisson analyses see notes Table 3.
  2. b) Myocardial infarction (MI) as need-weight in the basic analyses. Two alternative CVD need: Incidence of MI and stroke as combined endpoint during 2002–2006, and CVD-death (i.e., MI, stroke and aorta-aneurism) during 2002–2008.
  3. c) Indicators of socio-economic position (SEP): cf. notes Tables 1 & 3.
  4. d) Horizontal Inequity (HIE) gradient: The relative change in need-standardized statin incidence for each increase in SEP, i.e., the estimated overall linear trend.