The prevalence of co-morbid depression among employees with type 2 diabetes in a Japanese corporation: a descriptive study using an integrated health database.
OBJECTIVE
To determine the prevalence of comorbid depression among people with type 2 diabetes using the integrated health database.


METHODS
A total of 6543 people aged 18-65 years were selected from the employees of a Japanese corporation. Using the corporation's integrated health database, which consisted of medical claims data and a self-reported questionnaire from the fiscal year 2000, this study was undertaken to identify the prevalence, the odds ratio and some related factors.


RESULTS
The prevalence of co-morbid depression among people with type 2 diabetes was 2.6%. The crude odds ratio of co-morbid depression among those with type 2 diabetes was 2.20 (95% CI 0.88-5.50). After adjustment for covariates (gender, age, alcohol drinking, smoking, exercise, and dietary restriction), the odds ratio of co-morbid depression among those with type 2 diabetes was 2.33 (0.86-6.33).


CONCLUSIONS
Using the integrated health database, it was suggested that patients with type 2 diabetes were more likely to suffer from depression and there was a relationship between depression and dietary restriction of portion control.
Department of Health Policy Science, Graduate School of Medicine and Dentistry, Tokyo Medical and Dental University, Tokyo, Japan.
Hideaki
H
Arima
Makiko
M
Miwa
Kazuo
K
Kawahara
D000293:Adolescent; D000328:Adult; D000368:Aged; D015897:Comorbidity; D003430:Cross-Sectional Studies; D016208:Databases, Factual; D003863:Depression / Q000453:epidemiology*; D003924:Diabetes Mellitus, Type 2 / Q000178:diet therapy / Q000453:epidemiology*; D003927:Diet, Diabetic / Q000523:psychology*; D005260:Female; D006801:Humans; D007344:Insurance Claim Reporting; D007564:Japan / Q000453:epidemiology; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D015995:Prevalence; D011795:Surveys and Questionnaires; D055815:Young Adult