Table 5.
Close contact 3–7 days earlier with patients, co-workers and persons outside work with COVID-19 and incidence rate ratios (IRR) of loss of taste and smell. [CI=confidence interval.]
| Close contact with persons with COVID-19 | Person-days a | Incident loss of taste and smell | Incidence rate per 100,000 person-days | Model 1 | Model 2 b | Model 3 c |
|---|---|---|---|---|---|---|
|
|
|
|
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| IRR (95% CI) | IRR (95% CI) | IRR (95% CI) | ||||
| Patients | ||||||
| No contact | 488 451 | 202 | 41.4 | Reference | Reference | Reference |
| Contact | 26 748 | 24 | 89.7 | 2.17 (1.42–3.31) | 1.70 (1.11–2.61) | 1.48 (0.95–2.29) |
| Co-workers | ||||||
| No contact | 511 010 | 218 | 42.7 | Reference | Reference | Reference |
| Contact | 4189 | 8 | 191.0 | 4.48 (2.21–9.07) | 3.20 (1.57–6.49) | 2.56 (1.24–5.30) |
| Persons outside work | ||||||
| No contact | 510 123 | 195 | 38.2 | Reference | Reference | Reference |
| Contact | 5076 | 31 | 610.7 | 15.98 (10.94–23.34) | 11.21 (7.60–16.54) | 10.82 (7.33–15.98) |
a
This population was slightly different from that of table 3 because of the different outcome.
b
Adjusted for age (continuous), sex and month (6 categories, November 2020-April 2021).
c
As model 2 and additionally adjusted for the other types of COVID-19 contact.