Table 3. Results of Conjunctival and Nasopharyngeal Swab Tests Among 41 Patients With Both Tests Performed Within 2 Days.
| Variable | Nasopharyngeal swab positive | Nasopharyngeal swab negative | ||
|---|---|---|---|---|
| No.a/total No.b | Prevalence (95% CI)c | No.d/total No.e | Prevalence (95% CI)c | |
| All patients | 15/24 | 0.63 (0.41-0.81) | 7/17 | 0.41 (0.18-0.67) |
| Time since COVID-19 diagnosis, wk | ||||
| 1 | 7/8 | 0.88 (0.47-0.99) | 2/6 | 0.33 (0.04-0.78) |
| ≥2 | 8/16 | 0.50 (0.25-0.75) | 5/11 | 0.45 (0.17-0.77) |
Abbreviation: COVID-19, coronavirus disease 2019.
a
Number of patients with positive conjunctival swab results.
b
Number of patients in whom the results of the last nasopharyngeal swab were positive.
c
The 95% CIs are from the exact binomial distribution.
d
Number of patients with negative conjunctival swab results.
e
Number of patients in whom the results of the last nasopharyngeal swab were negative.