Identifying Characteristics of Adults Absent from a Metabolic Syndrome Checkup in Japan Using CHAID Dendrograms and Insurance Claim Data

Abstract

To prevent the development of metabolic syndrome among adult members of the community, improving the participation rate in the specific medical checkup (a medical examination focused on factors associated with metabolic syndrome prior to the onset of lifestyle-related disease) is an important public health issue. This study used claim data and health checkup data and aimed to detect those community-dwelling adults who were least likely to participate in the specific medical checkup. Analysis included the medical and health checkup chart data of 61,753 adults aged 60 - 69 years (as of April 2011) who lived in Fukui prefecture, Japan. The chi-squared interaction was used to analyze data. If a person did not participate in the specific medical checkup, individual was categorized as “absent.” Between April 2012 and March 2013, 66.3% of subjects were absent from the specific medical checkup. Those most likely to be absent included those who were also absent at the previous year’s checkup, those who were men, and those who did not have an examination for hypertension; 87.9% of patients who met all of these criteria were absent. Among women who were absent at the previous year’s checkup, the absentee rate differed by about 10.0% between those whose municipalities did (74.8%) or did not (84.2%) have a free checkup program. Our findings may help public health professionals detect those who require intervention and to effectively and efficiently improve participation in the specific medical checkup.