Table 1 Smoking status of COVID-19 patients
From: Impact of air pollution and smoking on COVID-19: a review
No. of subjects studied | No. of deaths reported | Others (severe and non-severe) | Current smokers | Former smokers |
|---|---|---|---|---|
191 patients [71] | 54 | 137 | 9% (died) 4% (others) | No information |
140 patients [72] | Nil | 58 severe 82 non-severe | 3.4% (severe) 0% (non-severe) | 6.9% (severe) 3.7% (non-severe) |
41 patients [22] | 6 | 7 severe 28 non-severe | 0% (severe) 11% (non-severe) | No information |
1099 patients [73] | Nil | 173 severe 926 non-severe | 16.9% (severe) 11.8% (non-severe) | 5.2% (severe) 1.3% (non-severe) |
78 patients [74] | 2 | 9 severe 67 non- severe | 27.3% of smokers (death and severe) 3% of smokers (non-severe) | |