Journal of Aging Research and Healthcare
Open Access
Development of a Chronic Obstructive Pulmonary Disease Severity Classification System Using A Japanese Health Insurance Claims Database
Sep 2017 DOI 10.14302/issn.2474-7785.jarh-17-1727
Manabu AkazawaCorresponding author
Background: Healthcare services provided to patients should vary depending on disease severity. However, disease severity bias, a type of selection bias, is a commonly encountered problem in administrative database studies. Herein, we selected chronic obstructive pulmonary disease (COPD), which comm…