Targeted interventions and increased physician awareness are needed to improve outcomes among older patients
Smoking increases inflammation in the airways, thickens mucus and clogs breathing passages, making it harder for the lungs to clear out toxins and debris
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From the 237 studies, 83 studies reported smoking status of the patients, but only 47 studies [8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54] reported smoking status and disease progression of COVID-19 that met our inclusion and exclusion criteria