Table 1.

(a) Sample demographics (part 1); (b) Sample demographics (part 2).

(a)	Nanjing		Suzhou		Chengdu
	Men	Women	Men	Women	Men	Women
60–65	91/89	101/81	92/88	89/87	101/81	88/86
65 more	45/44	61/51	51/48	50/47	61/54	63/60

(b)	Zhengzhou		Shanghai		Beijing
	Men	Women	Men	Women	Men	Women
60–65	99/91	102/71	101/100	111/101	115/106	99/90
65 more	59/59	62/57	89/76	101/85	88/79	90/81