42% false positives from rapid antigen tests

Canadian study reveals rate of false positives from rapid antigen tests

TORONTO -- As provinces rely more heavily on rapid antigen tests as part of their strategy to curb the spread of COVID-19, there have been concerns over the possibility of false positive results. Canadian researchers have produced new data shedding light on the likelihood of such events.

Researchers from the University of Toronto's Rotman School of Management published their peer-reviewed findings in the journal JAMA earlier this month. They looked at the results of more than 900,000 rapid antigen tests conducted over 537 workplaces in Canada between January and October 2021.

During this period, Canada had two significant waves of COVID-19 driven by the Delta variant. A total of 1,322 positive results were logged with rapid tests. Of these cases, 1,103 also had data from a PCR test to compare against.

In total, 462 rapid test results, or 0.05 per cent of the 900,000 results, resulted in false positives. This represents 42% the positive test results in the study.

https://www.ctvnews.ca/health/coronavirus/canadian-study-reveals-rate-of-false-positives-from-rapid-antigen-tests-1.5742050

所有跟帖： 

• False positivity is not good; but maybe it's better than -ibelieu- ♀ (28 bytes) () 01/18/2022 postreply 13:25:23

• 灵敏度过高造成假阳性会造成过度治疗, 假阴性会放过真的有病的, -移花接木- ♂ (0 bytes) () 01/18/2022 postreply 13:32:00

• it was said that the PCR tests had more false positives and ant -忒忒绿- ♂ (151 bytes) () 01/18/2022 postreply 14:25:00

• to test more times -忒忒绿- ♂ (0 bytes) () 01/18/2022 postreply 14:26:00

• Are the current rapid antigen tests different from the old ones？ -妖妖灵- ♀ (0 bytes) () 01/18/2022 postreply 14:31:35

• the pcr tests detect the RNAsof the virus while the rapid antige -忒忒绿- ♂ (664 bytes) () 01/18/2022 postreply 14:37:00

• There are so many patients come to hospital with different compl -妖妖灵- ♀ (0 bytes) () 01/18/2022 postreply 14:54:56

• complaints but end up with positive Covid tests nowadays. -妖妖灵- ♀ (0 bytes) () 01/18/2022 postreply 14:55:18

• 今天，我一个同事全家四口感染 -心存善念- ♀ (0 bytes) () 01/18/2022 postreply 15:37:32

• 上周我两个有流感症状的同事在单位做antigen检测阳性回家，今天都回啦上班，症状消失都是阴性 -移花接木- ♂ (0 bytes) () 01/18/2022 postreply 17:03:44

• 对这种全民检测不生病也检测的做法持有保留态度：） -老地雷- ♀ (291 bytes) () 01/20/2022 postreply 13:51:49

• 恭喜花董。首页进来，谢谢网管，42% false positives from rapid antigen tests 推荐成功 -梅雨潭- ♂ (0 bytes) () 01/20/2022 postreply 14:44:40