Research Article

Serum Samples That Have Been Stored Long-Term (>10 Years) Can Be Used as a Suitable Data Source for Developing Cardiovascular Risk Prediction Models in Large Observational Rheumatoid Arthritis Cohorts

Figure 2

Lipoprotein levels measured in stored serum samples in the various subcohorts. Total cholesterol (a) and HDL-c (b) are depicted on the -axis. Samples taken at the most recent follow-up moment in time, time point “10” on the -axis, have the shortest follow-up time and samples taken at baseline (time point “0”) have been stored the longest.
930925.fig.002a
(a)
930925.fig.002b
(b)