TABLE 4.
Multivariable cox proportional hazards analysis of time from exposure to quarantine in close contacts, stratified by exposure setting (data from the Zurich SARS-CoV-2 Cohort Study: 2020–2021, Switzerland).
| Variable | AHR (95% CI)* | p-value |
|---|---|---|
| Age at diagnosis, years | ||
| 18–39 | 1 (reference) | — |
| 40–64 | 1.28 (0·91–1.80) | 0.16 |
| 65+ | 1.45 (0·67–3.12) | 0.35 |
| Sex | ||
| Female | 1 (reference) | — |
| Male | 0.86 (0.63–1.15) | 0.31 |
| Highest education level | ||
| Mandatory school | 1 (reference) | — |
| Vocational training/baccalaureate | 0.67 (0.34–1.32) | 0.24 |
| Technical college or university | 0.61 (0.29–1.27) | 0.19 |
| Employment status | ||
| Employed | 1 (reference) | — |
| Student | 1.41 (0.91–2.18) | 0.12 |
| Unemployed | 0.85 (0.38–1.93) | 0.70 |
| App notification | ||
| App non-notified | 1 (reference) | — |
| App notified | 1.53 (1.15–2.03) | 0.004 |
AHR: adjusted hazard ratio, CI: confidence interval.
*
Model adjusted for age group, sex, highest education level, employment status and app notification.