We examined how difficult it would be for the elderly living in mountainous areas to go to the nearest hospital using a Voronoi tessellation representing the mathematical concept of neighborhood. We defined the index of the nursing-care capacity for the elderly as the ratio of the number of caregivers to the number of the elderly receiving nursing-care.
  The mean age of those who drive to the hospital by themselves worked out at 70±9.8 years. Meanwhile, that of those who go to the hospital by bus or taken to hospital in a car driven by a family member came to 80±7.0years. The latter was significantly older than the former.
  The areas of the Voronoi tessellation generated by patients' places of residence were divided into three groups according to the size. The plots of these three groups of the the places of residence on the map had a three-layer and doughnut-like structure, i. e., inner-, middle-, and outer-layer.
  The index of the nursing-care capacity in 2008 was less than 1.0 for the patients under 80 years of age. This means that when those who were at the age of 50 in 2008 become old and need nursing-care, access to the hospital will become harder to them than at present. For those who are over 80 years of age and live in the outer layer that is far away from arterial road, it will be almost impossible.
  These findings suggest that outpatient care with transportation assistance by a family member at present should be reconsidered because of the future lack of care personnel. It would also be necessary to consider the welfare of older people from the geographical point of view in order to manage the problems concerning the various physical and sociological difficulties of the elderly.

Background: Adolescents and young adults (AYA) with cancer go through various life events during their illness trajectory, and there is often insufficient information on their diseases due to their rarity. Few chances are available for AYA patients to meet and share information with each other. Therefore, at the National Cancer Center Hospital in Japan we hold AYA Hiroba, a monthly get-together for AYA patients to communicate with each other. This study investigated satisfaction and effect with the activity. Methods: We have held the AYA Hiroba activity once a month since May 2016. We asked participants to complete a questionnaire at each session.Results: We held the activity 33 times between May 2016 and May 2019. A total of 130 patients participated, and 97 of them completed the questionnaire, including providing demographic data, since October 2017. The respondent demographics were as follows: sex (male/female), 38/59; median age, 29 years (range 14–39 years); outpatients/inpatients, 31/66; number of sessions attended (1/≥2), 42/55; and cancer type (sarcoma/malignant lymphoma/brain tumor/germ cell tumor/leukemia/melanoma/breast cancer/neuroblastoma/Wilms tumor/lung cancer/cervical cancer/nasopharyngeal cancer/tongue cancer/blank), 45/11/9/7/6/5/3/3/2/1/1/1/1/2). Many attendees perceived the activity favorably: “It was very satisfying” (61.7%), and “It was very helpful” (65%). The feedback was classified into three categories: “interaction with the same generation”, “diversion”, and “getting information”. Discussion: AYA patients have a great need to communicate with each other, and the feedback suggests that AYA Hiroba would be effective in interaction with the same generation, diversion and getting information. Most participants were very satisfied with the program.