HIV vaccine acceptability among high-risk drug users in Appalachia: a cross-sectional study

Young, April M; DiClemente, Ralph J; Halgin, Daniel S; Sterk, Claire E; Havens, Jennifer R

doi:10.1186/1471-2458-14-537

Table 2 Psychosocial attitudes about HIV vaccination in sample of rural drug users

From: HIV vaccine acceptability among high-risk drug users in Appalachia: a cross-sectional study

Construct	Measure	Dichotomized response	N (%)
Attitudes (n = 433)
Severity	In your opinion, how serious would it be if you were infected with HIV?^b	Very/Extremely Serious	427 (98.6)
Susceptibility	If you did not get a vaccine, how likely do you think you would be to get HIV in your lifetime?^b	Likely/Very Likely	100 (23.1)
Benefits	In your opinion, how much would an HIV vaccine benefit you?^c	Some/A lot	313 (72.3)
Barriers	What factors would make it difficult for you to receive the HIV vaccine? [see Figure 1]	[Endorsed at least one barrier]	344 (79.4)
Experiential	[3-items] For me, getting an HIV vaccine would be… ["stressful - relaxing", “frightening – comforting”, “irresponsible – responsible”]^a	[Positive rating on all three items]	343 (79.2)
Subjective norms (n = 432)
Descriptive norm		Affirmative response on the following two items	195 (45.1)
Normative belief	If an HIV vaccine became available, most people important to me would get it.^d	Agree/Strongly Agree	358 (82.9)
Motivation to comply	If most people got the HIV vaccine, would you be [More likely to get it/Less likely to get it/Would not affect my decision]^e	More likely to get it	218 (50.5)
Injunctive norm		Affirmative response on the following two items	251 (58.1)
Normative belief	Most people important to me would be supportive of me getting the HIV vaccine.^d	Agree/Strongly Agree	408 (94.4)
Motivation to comply	If most people encouraged you to get the HIV vaccine, would you be [More likely to get it/Less likely to get it/Would not affect my decision]^e	More likely to get it	256 (59.3)
Personal agency
Behavioral control	How much personal control do you feel that you would have over getting the HIV vaccine?^f	A lot/Complete control	276 (63.7)
Self-efficacy	How sure are you that you could get the HIV vaccine if …^g	Affirmative response each of the following 3 items	83 (19.2)
	…you had to pay for it out of pocket?	Very/Extremely Sure	105 (24.2)
	…you had to travel out of town to get it?	Very/Extremely Sure	184 (42.5)
	…your friends/partners did not want you to get it?	Very/Extremely Sure	266 (61.4)

^aMeasured on 4-point semantic differential scales; dichotomized where 1 = rating of three or four on all items, 0 = rating of one or two on at least one item.
^bMeasured on 4-point scale dichotomized where: 0 = Very unlikely/Unlikely, 1 = Likely/Very likely.
^cMeasured on 4-point scale dichotomized where: 0 = Not at all/Little, 1 = Some/a lot.
^dMeasured on 4-point scale dichotomized where 0 = Strongly disagree/Disagree, 1 = Agree/Strongly agree.
^eDichotomized where 0 = Less likely to get it/Would not affect my decision, 1 = More likely to get it.
^fMeasured on 4-point scale dichotomized where 0 = No control/Some control, 1 = A lot of control/Complete control.
^gEach measured on 4-point scales dichotomized where 0 = Not sure at all/Somewhat sure, 1 = Very sure/Extremely sure. Total measure was dichotomized where 1 = rating of one on all items, 0 = rating of zero on at least one item.

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