To estimate the prevalence of HIV infection in patients diagnosed with an indicator condition (IC) for HIV and/or risk behavior for their acquisition and/or coming from high prevalence countries.
The data in the target indicator condition replicate closely those reported by Wright et al. (2007).
For keypress responses, the switch from the target indicator to the distractor indicator condition caused an uncertainty effect increase of 21 ms per doubling of N, which is 27% of the uncertainty effect in the target indicator condition.
For, even excluding the repetition trials, the uncertainty is (non-significantly) smaller (and not statistically discernible from zero) in the distractor indicator condition (2.5 [ 2.1↔7.0] ms per doubling of N) than in the target indicator condition (3.0 [0.5↔5.5]).
In an indicator condition guided HIV testing strategy, all patients presenting to any health care setting with specific indicator conditions would be offered HIV testing independent of risk assessment, as part of routine care.
By contrast, in the distractor indicator condition, the abrupt-onset indicator stimulus occurred simultaneously at all of the distractor locations, and so would, if anything, have been expected to draw attention away from the movement target.
We have used Type 2 diabetes mellitus for illustrative purposes as the indicator condition due to the high prevalence in Malaysia as well as the complexity of management of this condition.
We discuss some of these health system issues, using diabetes as the indicator condition, and the relating this to the Malaysian health system to illustrate the challenges of translating evidence from better resourced countries.
In the target indicator condition, which replicated previous research, that stimulus occurred uniquely at the actual location of the movement target for the pointing responses, and thus might have been expected to draw attention to that location.
Statistical models are used to estimate natural variability, pre-existing trends, and environmental predictors of baseline indicator conditions.
