Lusignan (2020)
Risk factors for SARS-CoV-2 among patients in the Oxford Royal College of General Practitioners Research and Surveillance Centre primary care network: a cross-sectional study
https://doi.org/10.1016/S1473-3099(20)30371-6
https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(20)30371-6/fulltext
Patient characteristics
Smoking (History of smoking vs. No history of smoking)
SARS COV-2 infection
Odds ratio: 0.870 (0.690-1.100) Adjusted model

United Kingdom

Cross-sectional study

Medical records

3802

patients in the Oxford RCGP Research and Surveillance Centre network who were tested for SARS-CoV-2

Overall, 2190 (57·6%) of 3802 patients were female and 2497 (65·7%) were white. The median age of patients who had a test was 58·0 years (IQR 34–73) for men and 51·5 years (33–70) for women. 1986 (52·2%) patients lived in rural areas, and 1855 (48·8%) were ranked as least deprived (quintile 5) according to the Index of Multiple Deprivation.

Total

2 Month


SARS COV-2 infection

587

RT-PCR testing for SARS-CoV-2


Patient characteristics

Smoking

current status

No history of smoking

History of smoking


Odds ratio

0.870 (0.690-1.100)

No

No

Yes

Age, sex race, Socioeconomic deprivation level, Household size, Settlement or population density, smoking, bmi, hypertension, chronic kidney diseasediaetes, heart disease, COPD,


none

Average

No