Point estimate for the hazard ratio for myocardial infarction in unadjusted analyses. Filled squares are patients aged 30 and open squares are those aged 60 at the beginning of follow up. Data from Gelfand JM, Neimann AL, Shin DB, Wang X, Margolis DJ, Troxel AB. Risk of myocardial infarction in patients with psoriasis The data is divided between those with mild or severe psoriasis JAMA 2006;296:1735–41.