BMJ Open · 2019 · 83 citations · 36 references
Our findings highlight the high frequency of comorbidity in people with OA, with depression having the highest age-standardised prevalence rate. Comorbidities differentially affect females, and vary by age. These factors should inform healthcare programme and delivery.
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Coding Algorithms for Defining Comorbidities in ICD-9-CM and ICD-10 Administrative Data
Hude Quan, Vijaya Sundararajan, Patricia Halfon et al. · Medical Care · 2005 · 10.2K citations
Multiple significance tests: the Bonferroni method
Martin Bland, Doug Altman · BMJ · 1995 · 3.8K citations · Full text
Clinical Practice Guidelines and Quality of Care for Older Patients With Multiple Comorbid Diseases
Cynthia M. Boyd, Jonathan Darer, Chad Boult et al. · JAMA · 2005 · 2.5K citations