AHSG and diabetes mellitus: Correlation between fetuin-A levels and the PPARα intron 7C allele also became insignificant when corrected for BMI (r = 0.107, p = 0.095), diabetes status (r = 0.115, p = 0.072), and HOMA-IR (r = 0.123, p = 0.056) but remained significant after correction for postinfarction status (r = 0.131, p = 0.041).