SNP rs880315 in CASZ1 (Zinc Finger Protein Castor Homolog 1) nominally associated with hypertension (DBP≥90 mmHg) in the mid-tier age group (≥30 to <60 years), but not in younger (<30 years) or older individuals (≥60 years). This evidence concerns the gene CASZ1 and hypertensive disorder.