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ORs of being tested for SARS-CoV-2 infection within the control cohort (logistic model)
| Covariates | OR | (95% CI) |
| Age<30 | 1 | |
| 31–50 | 0.61 | (0.58 to 0.64) |
| 51–70 | 0.43 | (0.40 to 0.45) |
| >71 | 0.36 | (0.33 to 0.40) |
| Charlson Index 0 | 1 | |
| 1 | 1.32 | (1.17 to 1.49) |
| 2 | 1.22 | (1.07 to 1.39) |
| 3 | 1.37 | (1.17 to 1.59) |
| Sex female | 1 | |
| Male | 0.93 | (0.89 to 0.97) |
