Effect estimates for the implementation period of the CO@h programme, from mixed effects regression models, adjusted for month of test and patient-level covariates
| Outcome | Adjusted OR | SE | P value | 95% CI | Denominator | |
| Lower | Upper | |||||
| Mortality within 28 days of positive COVID-19 test | 1.06 | 0.072 | 0.405 | 0.93 | 1.21 | 203 218 |
| Any ED attendance within 28 days of positive COVID-19 test | 1.12 | 0.033 | <0.001 | 1.06 | 1.18 | 203 218 |
| Any hospital admission within 28 days of positive COVID-19 test | 1.12 | 0.037 | <0.001 | 1.05 | 1.20 | 203 218 |
| Critical care use of those admitted | 1.24 | 0.107 | 0.012 | 1.05 | 1.47 | 24 895 |
| Adjusted IRR | SE | P value | Lower | Upper | Denominator | |
| Length of stay of those admitted (in days) | 1.02 | 0.029 | 0.588 | 0.96 | 1.07 | 20 794 |
Denominator represents the total number in the analysis with no missing data in adjusting covariates.
CO@h, COVID Oximetry @home; IRR, incidence rate ratio from negative binomial regression.