In multivariate binary logistic regression, the significant variables were previous LGITB admission (OR 1.93, 95% CI 1.11–3.35), presence of ischemic heart disease (OR 2.46, 95% CI 1.19–5.09), DRE findings of blood (OR 3.51, 95% CI 1.95–6.29), presence of syncope or dizziness (OR 2.21, 95% CI 1.35–3.63), lower SBP (OR 0.983, 95% CI 0.97–0.995) and lower initial Hb levels (OR 0.55, 95% CI 0.489–0.619) (Table 3). The gene discussed is GSTM1; the disease is coronary artery disorder.