GSTM1 and anemia (phenotype): No relationship was observed between AAA volume loss and decrease in theHb level (r = 0.072, p = 0.571) or between pre-operative AAAvolume and decrease in the Hb level (r = 0.072, p = 0.566).Furthermore, 59.5% of the patients (n = 44) developed anaemia 24 h after EVAR.The odds ratio (OR) of anaemia 24 h after EVAR was 5.3 times higher in those withhypertension (OR, 5.304; 95% confidence interval [CI], 1.024–27.424) than inthose without the condition.