Background: The incidence and prevalence of multiple sclerosis (MS) varies considerably
around the world. No previous study has performed a comprehensive review examining the …

Background: The coronavirus disease 2019 (COVID-19) pandemic is thought to have
increased use of virtual care, but population-based studies are lacking. We aimed to assess …

Background Multimorbidity, the co-occurrence of two or more chronic conditions, is common
among older adults and is known to be associated with high costs and gaps in quality of …

With advances in the effectiveness of treatment and disease management, the contribution
of chronic comorbid diseases (comorbidities) found within the Charlson comorbidity index to …

Background: Few longitudinal studies have delineated the association between traditional
cardiovascular risk factors and development of aortic stenosis (AS). Objectives: The authors …

Background: Ankylosing spondylitis (AS) is a chronic inflammatory arthritis affecting the
spine in young adults. It is associated with excess cardiovascular and cerebrovascular …

D36. INNOVATIONS IN RESEARCH METHODS AND EVIDENCE SYNTHESIS : Days Alive and
Out of Hospital: Validation of a Patient-Centered O Page 1 D36 INNOVATIONS IN RESEARCH …

Introduction: To determine if using a combination of hospital administrative data and
ambulatory care physician billings can accurately identify patients with congestive heart …

Importance Single-center studies identify frailty as a risk factor for 30-day postoperative
mortality. The long-term and population-level effect of frailty on postoperative mortality is, to …

Importance Controversy exists about the preferred surgical approach for total hip
arthroplasty (THA). Objective To determine whether an anterior approach is associated with …