Do they have a control group? From the press article it looks like they are comparing with the global average that is meaningless because there is too much variation.
This is probably a good hospital with good staff and good equipment. Globally many hospitals are not so good.
There may be some involuntary selection of the patients. For example here in Argentina the retired people have a special health plan that include only some hospitals. That may change the population that goes to each hospital and change the expected death rate. Some hospitals get more rich patients. Some hospitals may get more athletes. It is very difficult to be sure, so you need a randomized control group.
No, it's yet another observational study. The two RCTs that have been done -- for prophylactic use and for severe patients were both negative, although the studies were small, so there could be a small benefit from HCQ. No one to my knowledge has published an RCT for HCQ given early in the disease.
They also state that most of the patients that died had pre-existing conditions, but no mention of if that would have prevented them from taking HCQ, leading to the majority of the "no HCQ" cases being people who were already more likely to die. If that were controlled for, we might see the same results we've seen in every other study, that taking HCQ actually led to increased mortality rates.
> The study analyzed 2,541 patients hospitalized among the system’s six hospitals between March 10 and May 2 and found 13% of those treated with hydroxychloroquine died while 26% of those who did not receive the drug died.
pg talks about this phenomena - I think it's less about the studies themselves but rather how they are covered and described by third parties with vested interests:
Getting properly done studies is hard. In particular the statistics are even harder and easier to mess up (the retracted Lancet paper had also statistical problems).
Flagged article because even the slightest chance of Trump being right is not worth positive coverage of a drug he endorses that might be effective in fighting this pandemic.
HCQ is a generic drug it’s not restricted by patents, you can only get a short term application patent for a new use of a drug if the original patent still hasn’t expired.
[+] [-] gus_massa|5 years ago|reply
This is probably a good hospital with good staff and good equipment. Globally many hospitals are not so good.
There may be some involuntary selection of the patients. For example here in Argentina the retired people have a special health plan that include only some hospitals. That may change the population that goes to each hospital and change the expected death rate. Some hospitals get more rich patients. Some hospitals may get more athletes. It is very difficult to be sure, so you need a randomized control group.
[+] [-] cameldrv|5 years ago|reply
[+] [-] imustbeevil|5 years ago|reply
[+] [-] zaroth|5 years ago|reply
[+] [-] whoisjuan|5 years ago|reply
I have seen Hydroxychloroquine go from promising to helpful to not-helpful to damaging to promising again.
[+] [-] forgingahead|5 years ago|reply
http://www.paulgraham.com/submarine.html
https://www.wsj.com/articles/covid-19-drug-remdesivir-to-cos...
[+] [-] lbeltrame|5 years ago|reply
[+] [-] solvorn|5 years ago|reply
[+] [-] Ghjklov|5 years ago|reply
[+] [-] twirlock|5 years ago|reply
[+] [-] jeegsy|5 years ago|reply
[+] [-] emersonrsantos|5 years ago|reply
[+] [-] jedmeyers|5 years ago|reply
[+] [-] knodi|5 years ago|reply
[+] [-] mkbkn|5 years ago|reply
[+] [-] dogma1138|5 years ago|reply