BMC Public Health

Table 1 Characteristics of study population: US adult respondents, age 40 years and older at the time of the interview, National Health Interview Survey, 1986–2004, with mortality follow-up through 2006

From: Estimating life expectancy adjusted by self-rated health status in the United States: national health interview survey linked to the mortality

Variable		Sample size, n^a	Wt^b %
Age at interview	40–44	136,139	18.9
	45–49	116,846	16.2
	50–54	98,198	13.6
	55–59	83,240	11.4
	60–64	75,184	10.1
	65–69	69,394	9.2
	70–74	58,886	7.9
	75–79	44,336	6.1
	80–84	28,184	3.9
	85+	19,124	2.7
Sex	Male	333,588	46.6
	Female	395,943	53.4
Race	White	601,184	85.2
	Black	90,655	9.9
	Other / multiple	34,368	4.5
	Unknown	3324	0.4
Health Status^c	Excellent	178,179	24.9
	Very good	198,346	28.0
	Good	211,181	28.6
	Fair	97,056	12.7
	Poor	42,141	5.4
	Unknown	2628	0.3
Survival status	Dead	165,616	20.5
	Alive	563,915	79.5

^aSample size, total sample size was 729,531
^bWeighted percent
^cIncludes health status reported by self (63.4%), proxy (36%) and missing (0.6%) reporting status information

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ISSN: 1471-2458

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