Retrospective 11,468 vaccinated rheumatic disease patients in the USA, showing lower risk of COVID-19 with HCQ/CQ use compared with all other treatments. Adjusted results are only provided with respect to specific other treatments.
risk of case, 46.3% lower, RR 0.54, p = 0.001, treatment 28 of 18,358 (0.2%), control 223 of 78,509 (0.3%), cases vs. total person-months, unadjusted.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
This study is excluded in the after exclusion results of meta
unadjusted results with no group details.
Patel et al., 7/15/2022, retrospective, USA, preprint, mean age 60.0, 12 authors.