Significance of Ningen Dock as Screening System Through Treatment Rate of Past Diseases

抄録

Objective: We investigated the frequency of medical history in persons who underwent comprehensive health checkups (Ningen Dock). By comparing with the data from the National Data Base (NDB), we clarified the significance of the Ningen Dock system in identifying people who needed treatment and referrals to a medical institution.

Methods: A total of 8,872 individuals underwent Ningen Dock in 2019 were included in this. According to their medical history, we analyzed 207 diseases obtained from self-reported questionnaires and interviews with public health nurses. Participants with these diseases were divided into two groups: those receiving treatment and those not receiving treatment despite previous disease indications. The number of participants and rate for each group were calculated. Furthermore, we compared the rate of participants under treatment with those who have consulted a hospital/clinic per population with the data from the NDB. Some of the individuals whose medical information were obtained from the NDB may have had their blood pressures and lipid profiles tested through a legal physical examination. The diseases diagnosed by the items examined only using Ningen Dock without any legal health checkups included hyperuricemia and gout (7.3% in Ningen Dock; 1.0% in NDB, p<0.001), together with other digestive system diseases (5.5%; 1.3%, p<0.001). The rates of angina pectoris/myocardial infarction, which frequently revealed subjective symptoms, were significantly higher in the NDB (1.8%) than in Ningen Dock (0.7%; p<0.001).

Conclusions: The treatment rate of diseases that showed less subjective symptoms and was examined using Ningen Dock was significantly higher than that of the NDB.