Fig. 2

Registration and interview timeline for the HAM-net subjects analyzed in this study. Each colored column represents a group of patients who registered during the same year: 2012 (green), 2013 (blue), or 2014 (purple). Patients who registered in 2015 or later (not shown) were not included as subjects in this study. All subjects were interviewed once upon registration and then once per year thereafter; however, data from these follow-up interviews (shown in gray text) are not included in this paper. In total, data from three years of initial interviews for 383 subjects were analyzed in this retrospective study. A red dotted line separates the data that were and were not analyzed