. 2011 May 13;13(2):e38. doi: 10.2196/jmir.1797

Table 3.

Demographic characteristics of survey participants enrolled in an online HIV behavioral risk study by survey completion status (n = 9005) in the United States in 2009

		Completed Each Page in Survey (n = 6258)		Did Not Complete Each Page in Survey (n = 2747)
	Characteristics of Participants^a	n	%	n	%
Race
	White^b	2670	77	803	23
	Black^b	849	66	444	34
	Hispanic	1987	71	822	29
	Asian/Pacific Islander^b	138	66	70	34
	Native American/Alaska Native^b	123	67	61	33
	Multiracial^b	332	73	120	27
	Other^b	100	75	33	25
Age (years)
	18-24	4181	68	1976	32
	25-29	1014	70	432	30
	30-34	431	75	142	25
	35-45	477	77	146	23
	> 45	155	75	51	25
Sexual identity
	Bisexual	1445	70	632	30
	Homosexual or gay	4653	75	1523	25
	Heterosexual or straight	35	58	25	42
	Other^c	70	73	26	27
Education
	College/postgraduate	969	75	315	25
	Some college/associate degree	2694	76	837	24
	High school or GED	2082	71	832	29
	Less than high school	444	71	184	29
Sexual Partners, past 12 months
	One or more men	5601	71	2287	29
	Both men and women	657	59	460	41
UAI with a male sex partner, past 12 months
	Yes	4064	84	779	16
	No	2189	68	1031	32

Ever been tested for HIV
	Yes	4501	95	258	5
	No	1674	94	101	6
Urban versus rural^d
	Rural	2376	75	805	25
	Urban	3608	72	1381	28

^a Totals for most variables do not equal the total number of participants due to missing data.

^b non-Hispanic

^c Participants could write in a text response for “Orientation”; the most frequent responses were “queer,” “curious,” and “questioning.”

^d The categorization of rural versus urban was based on population density (per square mile) of the respondents’ zip codes; respondents who lived in a zip code with a population density of < 1000 persons per square mile were considered to live in rural areas.