Anonymous ID: e73b0f Aug. 4, 2020, 9:05 p.m. No.10185685   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>5701 >>5732 >>5785

https://twitter.com/truthhurts_the/status/1290748013552513026

Detailed thread on best science on efficacy of masks.

The โ€˜gold standard of all clinical research, including medical interventions, is a Randomized Controlled Trial (RCT) using lab-verified results (or a systematic review of ALL previous RCTs).

A proper RCT removes bias by having control groups (each using a different intervention) and verified outcomes. Other types of studies (observational, mechanical studies, expert opinion, models) are used to develop hypotheses while

RCTs are used to test the hypotheses.

All RCTs have weaknesses. One weakness of a mask-related RCT is mask compliance. Since these studies are outside of a lab there is no way to ensure 100% compliance. This is why RCTs in a healthcare setting are also important.

Fortunately for us, a systemic review of all relevant RCTs funded by the HHSโ€™s Agency for Healthcare Research and Quality entitled โ€œMasks for Prevention of Viral Respiratory Infection among Healthcare Workers and the Publicโ€ was completed in June 2020.

 

https://www.acpjournals.org/doi/full/10.7326/M20-3213