Abstract
The entire generation of baby boomers will reach the old-old age group by 2025, and problems in the housing of the elderly are expected to become apparent. This study is intended to clarify the factors that may be expected to influence the admission of elderly with nursing care needs certification to facilities covered by long-term care insurance and to residential type facilities, based on the panel data from the medical care insurance and the long-term care insurance of A-city in Hokkaido prefecture. The cumulative total number of participants registered in the study was 4,099. The participants consisted of the elderly with nursing care needs certification at a total of 6 time points （each July and December from 2007 to 2009）, who were home treatment patients enrolled registered in the National Health Insurance or the medical insurance system for the elderly aged 75 or over （“Rojin Hoken Seido” until March 31 2008 and “Koki Koreisha Iryo Seido” from April 1 2008 （n = 1,292））. The panel data of the subjects was used. The average age of the subjects was 82 years old and 70% were women. From the results obtained using the Longitudinal Logistic Regression Model （random effect model）, it was revealed that economic conditions, increased nursing care level, use of the hospitalization service/home service were factors that would influence the admission of elderly to care facilities. It is suggested that stabilizing the economic conditions, preventing increase of the nursing care need level, and intervention in the use of hospital and home nursing care services would be effective for the prevention of admission to the facilities.
