Abstract: Objective To summarize the clinical characteristics and outcomes of corona virus disease 2019(COVID-19) in patients with adrenal insufficiency (AI), and analyze the risk factors of outcomes. Methods The clinical data of COVID-19 patients with AI in Peking Union Medical College Hospital in December 2022 were analyzed retrospectively and the patients were followed up to collect outcomes of their diseases. Results Among 28 COVID-19 patients with AI, 20 cases (71.4%) received basal corticosteroid replacement. Among the 18 patients with community-acquired COVID-19, 11 cases (61.1%) increased the corticosteroid dosage proactively at home. The most common symptoms of COVID-19 were fever (96.4%), gastrointestinal symptoms (82.1%) and consciousness disturbance (78.6%). Occurrence of severe consciousness disturbance was associated with older age and lower basal corticosteroid replacement dose(P＜0.05). Adrenal crisis(AC) occurred in 20 patients(71.4%), which was associated with lower basal corticosteroid replacement dose, hypochloremia, lower eosinophil, lower platelet, and longer activated partial thromboplastin time(APTT)(P＜0.05). 2 patients died during hospitalization.26.3 % (5/19) of surviving patient′s recovered consciousness longer than 48 hours. Delayed recovery of consciousness was associated with lower systolic pressure, higher blood creatinine, and higher fibrinogen(P＜0.05). Long COVID-19 symptoms such as fatigue and poor appetite occurred in 48.0 % (12/25) of patients. Among patients with increased corticosteroid dosage, 50.0 % (12/24) had their dose reduced to baseline within 3 weeks. Conclusions COVID-19 patients with AI have a high frequency of consciousness disturbance and AC. AI patients are lack of awareness of adjusting corticosteroid dosage proactively in case of infection stress, thus education of “sick day rules” for AI patients should be strengthened in clinical practice.

Key words: adrenal insufficiency, corona virus disease 2019, consciousness disturbance, adrenal crisis