Table 1.

Working definitions derived from insurance claims data.

Disease	Working definition
Obstructive sleep apnea	at least one claim under ICD-10 code G47.3
Prostate cancer	at least one claim under ICD-10 code C61 and registered as a cancer patient in the National Medical Expenses Support Program
Diabetes	at least one claim per year for the prescription of anti-diabetic medication under ICD-10 code E11-14
Hypertension	at least one claim per year for the prescription of anti-hypertensive medication under ICD-10 code I10–13 or I15
Dyslipidemia	at least one claim per year for the prescription of anti-dyslipidemic medication under ICD-10 code E78
Stroke	at least one claim under ICD-10 code I63 or I64
COPD	at least one claim under ICD-10 code J41, J42, J43, or J44
IHD	at least one claim under ICD-10 code I20, I21, I22, I23, I24, or I25

COPD = chronic obstructive pulmonary disease, ICD = international classification of diseases, IHD = ischemic heart disease.