Design and measurement in a study of war exposure, health, and aging: protocol for the Vietnam health and aging study

Table 1 Proxy rate by age and gender

	Age group	Total Interviews		Respondent Interview		Proxy Interview
		Freq	% Dist	Freq	Interview	Freq	Proxy
		Freq	% Dist	Freq	rate (%)	Freq	rate (%)
Total	All	2445	100	2366	96.8	79	3.2
	60–69^a	1349	55.2	1388	99.2	11	0.8
	70–79	693	28.3	672	97	21	3
	80+	403	16.5	356	88.3	47	11.7
Male	All	1194	100	1162	97.3	32	2.7
	60–69	687	57.5	680	99	7	1
	70–79	335	28.1	325	97	10	3
	80+	172	14.1	157	91.3	15	8.7
Female	All	1251	100	1204	96.2	47	3.8
	60–69	662	52.9	658	99.4	4	0.6
	70–79	358	28.6	347	96.9	11	3.1
	80+	231	18.5	199	86.2	32	13.9

^a Note that 2 respondents were actually 59 years of age at the time of Wave I data collection

ISSN: 1471-2458