Use of glucocorticoids (GCs) in patients with early arthritis. (a) Percentage of patients that received GCs at each follow-up visit. White columns represent the percentage of patients receiving GCs; black columns represent the patients who received >7.5 mg of GC per day. (b) Distribution of cumulative GC dose adjusted to the duration of the follow-up in the whole population. The graph was obtained by using the kdensity command of Stata 9.2, which provides kernel density estimates of continuous variables in a population.