Table 2. Parameters related to estimate healthcare cost.

	age	male					female
		no. of the patients with dementia (per month)*		average cost per patient (JPY per month)			no. of the patients with dementia (per month)*		average cost per patient (JPY per month)
		n	distribution	mean	se	distribution	n	distribution	mean	se	distribution
inpatient	40–49	299	determinisitic	378,267	17,891	gamma	159	determinisitic	345,103	24,938	gamma
	50–59	1,123	determinisitic	382,665	9,702	gamma	734	determinisitic	355,825	9,929	gamma
	60–69	6,633	determinisitic	397,253	4,393	gamma	5,112	determinisitic	363,544	4,451	gamma
	70–79	24,484	determinisitic	383,375	3,185	gamma	27,882	determinisitic	351,120	2,618	gamma
	80-	50,568	determinisitic	350,563	2,347	gamma	118,197	determinisitic	326,581	1,289	gamma
outpatient	40–49	1,067	determinisitic	41,277	5,283	gamma	638	determinisitic	35,066	4,967	gamma
	50–59	3,001	determinisitic	43,647	4,040	gamma	3,284	determinisitic	40,837	4,898	gamma
	60–69	27,866	determinisitic	39,471	1,113	gamma	32,516	determinisitic	40,872	1,456	gamma
	70–79	187,141	determinisitic	43,620	609	gamma	289,829	determinisitic	41,652	479	gamma
	80-	395,435	determinisitic	40,222	348	gamma	1,041,396	determinisitic	37,960	216	gamma

* the number of the patients represents those who consume healthcare service during one month.