APOH was the most significantly regulated of these (P: 2.5*10−16; 1.9‐fold), and the cysteine‐rich secretory protein 3 (CRISP3) was the protein with the highest fold‐change with decreased levels in COVID‐19 patients (P: 1.1*10−4; 2.9‐fold). The gene discussed is APOH; the disease is COVID-19.