Table 2.
Objective and subjective antiretroviral therapy adherence among a pilot sample of African American women with HIV.
| Adherence measures | Values | ||||
| Objective measures of adherence using the Wisepill MEMSa for 30 days (N=12) | |||||
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Scheduled ARTb adherence, mean (SD), range | ||||
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Unadjusted | 28.24 (33.33), 0-66.67 | ||
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Adjusted | 28.24 (33.33), 0-66.67 | ||
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Daily ART adherence, mean (SD), range | ||||
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Unadjusted | 70.59 (83.33), 10.00-100.00 | ||
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Adjusted | 81.08 (86.67), 26.67-100.00 | ||
| Three-item self-report measure of adherencec(N=13) | |||||
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Overall subjective ART adherence, mean (SD), range | 77.78 (80.00), 56.67-100.00 | |||
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Individual-item subjective ART adherence | ||||
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1. In the last 30 days, on how many days did you miss at least one dose of any of your antiretroviral medication?d, n | |||
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Did not miss | 9 | |
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1 day | 2 | |
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2 days | 0 | |
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3 days | 2 | |
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Overall adherence for item 1 (0-100), mean (median)e | 97.95 (100) | ||
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2. In the last 30 days, how good a job did you do at taking your antiretroviral medication in the way that you were supposed to?, n | |||
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Very poor | 0 | |
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Poor | 0 | |
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Fair | 4 | |
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Good | 2 | |
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Very good | 3 | |
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Excellent | 4 | |
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Overall adherence for item 2 (0-100), mean (median)e | 70.77 (80) | ||
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3. In the last 30 days, how often did you take your antiretroviral medication in the way that you were supposed to?, n | |||
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Never | 1 | |
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Rarely | 1 | |
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Sometimes | 1 | |
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Usually | 3 | |
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Almost always | 5 | |
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Always | 2 | |
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Overall adherence for item 3 (0-100), mean (median)e | 64.62 (80) | ||
aMEMS: medication event–monitoring system.
bART: antiretroviral therapy.
cThe total number of responses for each question are based on all participants except for one who did not complete the end-of-study data collection meeting.
dThe range of responses for this question is based on the minimum and maximum missed doses reported by participants.
eWe calculated a proportion of the total number of days participants successfully took their medication in question 1 (eg, two missed doses: 28/30=98.3%). We assigned adherence in 20% increments to the response categories in questions 2 and 3 (eg, very poor=0%, poor=20%, and fair=40%).