title: Comparing two groups (control and intervention) for clinical study, multiple visits, descriptive statistics
body: <p>I trying to compare two groups of patients (control and intervention) for multiple study visits.</p>
  <p>Example of measurements: Hemoglobin, Troponin, Myoglobin, Creatinin, C reactive Protein (CRP)</p>
  <p>This means I would like to see a difference between these groups for different Visits, e.g. intervention group has lower CRP at visit 2 than controls. Additionally, I would like to compare the patients with themselves, e.g. patient 2 has lower CRP at visit 3, than at visit 2.</p>
  <p>Ultimately, I would like to show my data graphically (for a mean of the interventions and controls a line, one plot for every marker)  and primarily do descriptive statistics without testing (since my sample size is pretty small and this is more explorative.</p>
  <p>So far I have created a .csv with all data where I made columns indicating, if patients are control or intervention. This table is sortable by visit, control/intervention and patient ID.</p>