组别
性别(男/女)
年龄( X ¯ ± S )
1组
17,544 (8737/8807)
74.10 ± 7.00
2组
26,240 (12,741/13,516)
74.86 ± 7.37
总数
43,784 (21,478/22,323)
74.56 ± 7.23