Reply

Affiliations

¹ Jewish General Hospital and McGill University, Montreal, Quebec, Canada.
² Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.

Comment

Samy Suissa et al. Arthritis Rheumatol. 2021 Dec.

. 2021 Dec;73(12):2349.

doi: 10.1002/art.41884. Epub 2021 Oct 28.

¹ Jewish General Hospital and McGill University, Montreal, Quebec, Canada.
² Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.

No abstract available

Comment on

Effectiveness of Allopurinol in Reducing Mortality: Time-Related Biases in Observational Studies.
Suissa S, Suissa K, Hudson M. Suissa S, et al. Arthritis Rheumatol. 2021 Sep;73(9):1749-1757. doi: 10.1002/art.41710. Epub 2021 Jul 27. Arthritis Rheumatol. 2021. PMID: 33645906 Review.
Addressing Immeasurable Time Bias in an Observational Study: Comment on the Article by Suissa et al.
Weisman A, Hawker GA, Tomlinson GA. Weisman A, et al. Arthritis Rheumatol. 2021 Dec;73(12):2348-2349. doi: 10.1002/art.41886. Epub 2021 Oct 22. Arthritis Rheumatol. 2021. PMID: 34105313 No abstract available.

1. Suissa S. Immeasurable time bias in observational studies of drug effects on mortality. Am J Epidemiol 2008;168:329-35.
1. Weisman A, Tomlinson GA, Lipscombe LL, Perkins BA, Hawker GA. Association between allopurinol and cardiovascular outcomes and all-cause mortality in diabetes: a retrospective, population-based cohort study. Diabetes Obes Metab 2019;21:1322-9.