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Swab positivity for any virus by collector status, specimen type, and quality
| Swab positivity | p-Value | |
|---|---|---|
| Collector status | ||
| Healthcare worker | 138/185 (75%) | |
| Non-healthcare worker | 271/378 (72%) | 0.468 |
| Specimen type | ||
| Nose-only swab | 131/169 (78%) | |
| Nose–throat swab | 278/394 (71%) | 0.090 |
| Qualitya | ||
| Very good | 153/202 (76%) | |
| Good | 216/305 (71%) | 0.223b |
| Poor | 40/56 (71%) | 0.511b |
χ2-test for trend, p = 0.29.
Compared to very good stratum.
