Factor	Youth	Middle-aged	Elderly	F-value
1	Convenience	2.80	2.89	2.95	8.140**
2	Comfort	2.79	2.84	2.91	6.690**
3	Safety	2.58	2.68	2.69	3.334*
4	Healthcare	2.69	2.71	2.66	.834
5	Neighborhood relationships	2.14	2.48	2.76	39.069**
6	Life satisfaction	6.19	6.08	5.99	6.444**