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

• 靈敏度過高造成假陽性會造成過度治療, 假陰性會放過真的有病的, -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 -忒忒綠- ♂ (151 bytes) () 01/18/2022 postreply 14:25:00

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

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

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

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

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

• 今天，我一個同事全家四口感染 -心存善念- ♀ (0 bytes) () 01/18/2022 postreply 15:37:32

• 上周我兩個有流感症狀的同事在單位做antigen檢測陽性回家，今天都回啦上班，症狀消失都是陰性 -移花接木- ♂ (0 bytes) () 01/18/2022 postreply 17:03:44

• 對這種全民檢測不生病也檢測的做法持有保留態度：） -老地雷- ♀ (291 bytes) () 01/20/2022 postreply 13:51:49

• 恭喜花董。首頁進來，謝謝網管，42% false positives from rapid antigen tests 推薦成功 -梅雨潭- ♂ (0 bytes) () 01/20/2022 postreply 14:44:40