Compared to those who tested negative for influenza, those who tested positive for flu were less likely to have hypertension (31.9% vs. 35.5%, P = 0.025), local domicile (91.2% vs. 93.0%, P = 0.037), and to have been vaccinated in the season before inclusion (12.2% vs. 17.3%, P < 0.001) (Table 1). This evidence concerns the gene ZMYND10 and hypertensive disorder.