On linear regression analysis, ferritin levels were independently associated with residence in India (beta (95% CI) −0.78 (−1.04–−0.52)), male gender (−1.16 (−1.38–−0.93)), anaemia (−0.434 (−0.193–−0.676)), age (0.015 (0.006–0.024)), and serum triglycerides (0.258 (0.064–0.451)) (or apolipoprotein B), all P < 0.001, in models that also included waist to hip ratio, fasting plasma glucose, and systolic blood pressure. This evidence concerns the gene APOB and anemia (phenotype).