Table 5.

Comparison of the Area Under the Curve (AUC) for adherence items predicting undetectable viral load (n = 1914)

Adherence Measure	AUC	SE	95% CI
Unadjusted
SRSI-5 cat	0.72	0.02	0.68 0.76
Last 4 days	0.63*	0.02	0.59 0.67
Last missed dose	0.59*	0.02	0.54 0.64
VAS	0.66	0.02	0.62 0.71
Adjusted
SRSI-5 cat	0.75	0.02	0.71 0.79
Last 4 days	0.69	0.02	0.64 0.74
Last missed dose	0.67*	0.02	0.62 0.71
VAS	0.71	0.02	0.66 0.75

^*Different from SRSI, p≤ 0.05

Note. SRSI-5 cat = self-rating scale item with the bottom two categories combined; VAS = visual analogue scale; Last 4 days = “How many doses of your medications did you miss in the last 4 days?”; Last missed dose = “When was the last time you missed any of your medications?” Adjusted analyses included patients’ sex, age, race, and HIV transmission risk factor as covariates.