GSJ_Supplementary - Clinical Outcomes of Treating Cervical Adjacent Segment Disease by Anterior Cervical Discectomy and Fusion Versus Total Disc Replacement: A Systematic Review and Meta-Analysis

<p>GSJ_Supplementary for Clinical Outcomes of Treating Cervical Adjacent Segment Disease by Anterior Cervical Discectomy and Fusion Versus Total Disc Replacement: A Systematic Review and Meta-Analysis by Victor M. Lu, Ralph J. Mobbs, and Kevin Phan in Global Spine Journal</p

Flow chart demonstrating identification of cases for analysis in the present study.

<p>Flow chart demonstrating identification of cases for analysis in the present study.</p

Demographic and clinical characteristics of participants.

<p>Demographic and clinical characteristics of participants.</p

Cross-sectional association between adjusted retinal vessel calibre and diabetes.

<p>Cross-sectional association between adjusted retinal vessel calibre and diabetes.</p

Relationship between retinal venule calibre and diabetes, stratified by Gemini / Extent score.

<p>Relationship between retinal venule calibre and diabetes, stratified by Gemini / Extent score.</p

Inflation adjusted hospitalization cost for ECIC bypass surgery^*.

<p>Inflation adjusted hospitalization cost for ECIC bypass surgery^{<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0186758#t002fn001" target="_blank">*</a>}.</p

Demographic and clinical characteristics of 1,533 patients registered in the NIS that underwent EC-IC bypass surgery across 218 non-federal hospitals between 2002 and 2011.

<p>Demographic and clinical characteristics of 1,533 patients registered in the NIS that underwent EC-IC bypass surgery across 218 non-federal hospitals between 2002 and 2011.</p

Percent change in hospitalization cost following EC-IC bypass surgery for the variables included in the final predictive model.

<p>Percent change in hospitalization cost following EC-IC bypass surgery for the variables included in the final predictive model.</p

Algorithm for cohort selection for patients undergoing EC-IC bypass.

<p>Algorithm for cohort selection for patients undergoing EC-IC bypass.</p

Cohort definition and extraction

The figure describes the ICD-9 coding definitions along with the inclusion and exclusion criteria's that were utilized to establish a cohort of patients registered in the Nationwide Inpatient Sample database [2002-2011] that underwent extracranial-intracranial (EC-IC) bypass surgery for various indications