Higher Levels of C-Reactive Protein and Ferritin in Patients with Overweight and Obesity and SARS-CoV-2-Related Pneumonia

Bettini, Silvia; Bucca, Giovanni; Sensi, Caterina; Dal Prà , Chiara; Fabris, Roberto; Vettor, Roberto; Busetto, Luca

INTRODUCTION: Overweight and obesity are associated with a more severe COronaVirus Disease 19 (COVID-19). Adipose tissue-related chronic inflammation could be a promoter for the occurrence of the cytokine storm that predicts aggravation of COVID-19. The primary aim was to investigate if this increased risk for more severe COVID-19 was associated with a higher inflammatory response. METHODS: We enrolled patients <75 years old hospitalized in a medical COVID-19 ward with SARS-CoV-2-related pneumonia. Patients were classified according to BMI as normal weight, overweight, and obesity. Laboratory parameters were measured at admission and every second day during the hospital stay. RESULTS: Ninety patients (64.4% males; median age 61 years) were enrolled. Invasive mechanical ventilation (IMV) was needed in 9% of the patients with normal weight, in 32.4% of the patients with overweight, and in 12.9% of the patients with obesity (p = 0.045). Maximal C-reactive protein (CRP) level during hospital stay was 92 (48–122) mg/L in patients with normal weight, 140 (82–265) mg/L in patients with overweight, and 117 (67–160) mg/L in patients with obesity (p = 0.037). Maximal ferritin values were 564 (403–1,379) μg/L in patients with a normal weight, 1,253 (754–2,532) μg/L in patients with overweight, and 828 (279–1,582) μg/L in patients with obesity (p = 0.015). CONCLUSION: Patients with overweight and obesity required more IMV and had higher peaks of CRP and ferritin than patients with normal weight during COVID-19.