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Table 5 Illustrative sample sizes to achieve a range of POCT sensitivities based on a standard error of 2.5%

From: Rapid community point-of-care testing for COVID-19 (RAPTOR-C19): protocol for a platform diagnostic study

  Prevalence 40% 35% 30% 25% 20% 15% 10% 5%
Sensitivity 95% 190 218 254 304 380 507 760 1520
90% 360 412 480 576 720 960 1440 2880
85% 510 583 680 816 1020 1360 2040 4080
80% 640 732 854 1024 1280 1707 2560 5120
75% 750 858 1000 1200 1500 2000 3000 6000
70% 840 960 1120 1344 1680 2240 3360 6720
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