Analgesics
Antiandrogens
Azvudine
Bromhexine
Budesonide
Colchicine
Conv. Plasma
Curcumin
Famotidine
Favipiravir
Fluvoxamine
Hydroxychlor..
Ivermectin
Lactoferrin
Lifestyle
Melatonin
Metformin
Minerals
Molnupiravir
Monoclonals
Naso/orophar..
Nigella Sativa
Nitazoxanide
Paxlovid
Quercetin
Remdesivir
Vitamins
More

Other
Feedback
Home
Top
Results
All HCQ studies
Meta analysis
 
Feedback
Home
next
study
previous
study
c19hcq.org COVID-19 treatment researchHCQHCQ (more..)
Melatonin Meta
Azvudine Meta Metformin Meta
Bromhexine Meta
Budesonide Meta Molnupiravir Meta
Colchicine Meta
Conv. Plasma Meta
Curcumin Meta Nigella Sativa Meta
Famotidine Meta Nitazoxanide Meta
Favipiravir Meta Paxlovid Meta
Fluvoxamine Meta Quercetin Meta
Hydroxychlor.. Meta Remdesivir Meta
Ivermectin Meta
Lactoferrin Meta

All Studies   Meta Analysis   Recent:  
0 0.5 1 1.5 2+ Mortality 15% Improvement Relative Risk Hospitalization time -49% HCQ for COVID-19  Vernaz et al.  LATE TREATMENT Is late treatment with HCQ beneficial for COVID-19? PSM retrospective 198 patients in Switzerland Longer hospitalization with HCQ (p=0.002) c19hcq.org Vernaz et al., Swiss Medical Weekly, Dec 2020 Favors HCQ Favors control

Early experimental COVID-19 therapies: associations with length of hospital stay, mortality and related costs

Vernaz et al., Swiss Medical Weekly, doi:10.4414/smw.2020.20446
Dec 2020  
  Twitter
  Facebook
Share
  Source   PDF   All Studies   Meta AnalysisMeta
Retrospective 840 hospitalized patients in Switzerland showing non-statistically significant lower mortality with HCQ but significantly longer hospitalization times. Confounding by indication is likely. PSM fails to adjust for severity with a 16% higher mNEWS score for HCQ vs. SOC in the matched cohort.
Time varying confounding is likely. HCQ became controversial and was suspended towards the end of the period studied, therefore HCQ use was likely more frequent toward the beginning of the study period, a time when overall treatment protocols were significantly worse.
Authors note: "overall, there was an indication bias, with the reason of prescription being associated with the outcome of interest. Indeed, patients with more severe COVID-19 were more likely to receive experimental therapies."
Although the 15% lower mortality is not statistically significant, it is consistent with the significant 25% lower mortality [20‑29%] from meta analysis of the 247 mortality results to date.
This study is excluded in the after exclusion results of meta analysis: substantial confounding by time likely due to declining usage over the early stages of the pandemic when overall treatment protocols improved dramatically; substantial unadjusted confounding by indication likely.
risk of death, 15.3% lower, RR 0.85, p = 0.71, treatment 12 of 93 (12.9%), control 16 of 105 (15.2%), NNT 43, HCQ vs. SOC, PSM.
hospitalization time, 49.0% higher, relative time 1.49, p = 0.002, treatment 93, control 105, HCQ vs. SOC, PSM.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Vernaz et al., 31 Dec 2020, retrospective, propensity score matching, Switzerland, peer-reviewed, 15 authors.
All Studies   Meta Analysis   Submit Updates or Corrections
This PaperHCQAll
Late treatment
is less effective
Please send us corrections, updates, or comments. c19early involves the extraction of over 100,000 datapoints from thousands of papers. Community updates help ensure high accuracy. Vaccines and treatments are complementary. All practical, effective, and safe means should be used based on risk/benefit analysis. No treatment, vaccine, or intervention is 100% available and effective for all current and future variants. We do not provide medical advice. Before taking any medication, consult a qualified physician who can provide personalized advice and details of risks and benefits based on your medical history and situation. FLCCC and WCH provide treatment protocols.
  or use drag and drop   
Submit