10.1371/journal.pone.0191386.g002 Angelika Geroldinger Angelika Geroldinger Simone Katja Sauter Simone Katja Sauter Georg Heinze Georg Heinze Gottfried Endel Gottfried Endel Wolfgang Dorda Wolfgang Dorda Georg Duftschmid Georg Duftschmid Illustration of study design. Public Library of Science 2018 multivariable Cox regression models discipline study sample continuity mortality care index contact COCI 2018-01-19 18:52:47 Figure https://plos.figshare.com/articles/figure/Illustration_of_study_design_/5805651 <p>For each subject, explanatory variables including the COCI were determined from data available in a ‘harvesting period’ of one year starting with the date of index dispensing. One year after index dispensing was used as starting point for the survival analysis.</p>