FTO and obesity due to melanocortin 4 receptor deficiency: A multinominal linear regression between PMR of NRF1, FTO, and LEPR with the obesity measures (BMI z-score, WC z-score, and WHtR z-score) after adjusting with the covariates (family income and maternal education) demonstrated a significant positive correlation between PMR of NRF1 in EA participants with BMI z-score in the adjusted and unadjusted model.