FABP4 and Schnyder corneal dystrophy: Furthermore, while limited and inconsistent data have been reported on the association between body mass index and SCD among heart failure subjects (no association) [20] or postmyocardial infarction (41% increased risk of SCD per 5 unit decrease in BMI) [21] patients, no previous study has examined whether FABP4 influences the risk of SCD in a community setting.