Methods for analyzing observational longitudinal prognosis studies for rheumatic diseases: a review & worked example using a clinic-based cohort of juvenile dermatomyositis patients

• Main Authors: Lily Siok Hoon Lim (Author), Eleanor Pullenayegum (Author), Rahim Moineddin (Author), Dafna D Gladman (Author), Earl D Silverman (Author), Brian M Feldman (Author)
• Format: Book
• Published: BMC, 2017-03-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Most outcome studies of rheumatic diseases report outcomes ascertained on a single occasion. While single assessments are sufficient for terminal or irreversible outcomes, they may not be sufficiently informative if outcomes change or fluctuate over time. Consequently, longitudinal studies...