Older age, male gender, hypertension, hyperlipidemia, coronary artery disease, dyspnoea, haematocrit, brain natriuretic peptide (BNP) and N‐terminal prohormone BNP (NT‐pro‐BNP) were significantly different between those without and those with pulmonary hypertension (P < 0.05). The gene discussed is NPPB; the disease is Hypertension.