Supplementary materials: Discharges against medical advice and 30-day healthcare costs: an analysis of commercially insured adult

<b>These are peer-reviewed supplementary material for the article 'Discharges against medical advice and 30-day healthcare costs: an analysis of commercially insured adults' published in the </b><b><i>Journal of Comparative Effectiveness Research</i></b><b>.</b><b>Appendix Table 1.</b> A comparison of standardized mean differences for baseline covariates between matched and unmatched samples.<b>Figure S1. </b>Histogram of 30-day healthcare costs for the total matched sample.<b>Figure S2.</b> Histogram of 30-day inpatient readmission costs for the total matched sample.<b>Figure S3. </b>Histogram of 30-day emergency department visit costs for the total matched sample.<b>Figure S4.</b> Histogram of 30-day physician office visit costs for the total matched sample.<b>Figure S5.</b> Histogram of 30-day non-physician outpatient encounter costs for the total matched sample.<b>Figure S6. </b>Histogram of 30-day prescription drug fill costs for the total matched sample.<b>Figure S7.</b> Consort diagram displaying study inclusion and exclusion criteria for the study sample.<b>Summary: </b><b>Aim:</b> Prior literature detailing the consequences of a discharge against medical advice (DAMA) has not focused on costs. We examine costs following a DAMA. <b>Materials &amp; methods:</b> This retrospective cohort study utilized the IQVIA PharMetrics^® Plus database to identify adults hospitalized during 2007–2015. We compared 30-day postdischarge healthcare costs between matched DAMA and routinely discharged groups. <b>Results:</b> Thirty-day healthcare costs for the DAMA group were US$1078 (95% CI: US$434–1730) higher, driven by inpatient readmissions (US$979; 95% CI: US$415–1543) and emergency department visits (US$79; 95% CI: US$56–102). Costs due to prescription drug fills were lower in the DAMA group. <b>Conclusion:</b> A DAMA was associated with higher 30-day postdischarge healthcare costs compared with routine discharges.