Diseases prevalent before major depressive disorder diagnosis: an exploratory nested case-control study using health insurance-based claims data.

ABSTRACT:

Objectives

Major depressive disorder (MDD) is often comorbid with other chronic and/or serious diseases. However, little is known about the prevalence of various diseases that are present before MDD onset. We examined the prevalence of all pre-existing diseases in the 12 months before an MDD diagnosis.

Design

Exploratory nested case-control study.

Setting

Data, including diagnoses based on International Statistical Classification of Diseases and Related Health Problems, 10th revision codes, were from a Japanese health insurance database (JMDC).

Participants

Adults newly diagnosed with MDD during 2015, 2016 or 2017 (but not the preceding year) (cases) were matched (exact) 1:10 to controls by age, sex, index date and working status.

Primary and secondary outco

SUBMITTER: Cho Y 

PROVIDER: S-EPMC8852671 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature