Immortal Time Bias: Comment on the Article by Gwinnutt et al

Affiliations

Comment

Cynthia S Crowson. Arthritis Rheumatol. 2017 Dec.

. 2017 Dec;69(12):2402.

doi: 10.1002/art.40312. Epub 2017 Nov 8.

No abstract available

Comment in

Reply.
Gwinnutt JM, Symmons DPM, Lunt M, Verstappen SMM. Gwinnutt JM, et al. Arthritis Rheumatol. 2017 Dec;69(12):2402-2403. doi: 10.1002/art.40311. Epub 2017 Nov 2. Arthritis Rheumatol. 2017. PMID: 28881421 No abstract available.

Twenty-Year Outcome and Association Between Early Treatment and Mortality and Disability in an Inception Cohort of Patients With Rheumatoid Arthritis: Results From the Norfolk Arthritis Register.
Gwinnutt JM, Symmons DPM, MacGregor AJ, Chipping JR, Marshall T, Lunt M, Verstappen SMM. Gwinnutt JM, et al. Arthritis Rheumatol. 2017 Aug;69(8):1566-1575. doi: 10.1002/art.40090. Epub 2017 Jul 10. Arthritis Rheumatol. 2017. PMID: 28425173 Free PMC article.