Missing values on barrier items for both studies were imputed using the multiple imputation option in PASW S tatistics 18.0 for Macintosh, provided that respondents had completed at least 50% of all barrier items.
Where quality indicators consisted of more than one survey item, indicator scores were constructed by calculating the average over the items for each respondent, provided that the respondent answered half or more of the items for that indicator.
Simple random sampling technique is adopted to distribute the questionnaire to the respondents provided that the respondents are willing to share the information.
Provided that a respondent answered at least three of the six items, a mean dimension score was calculated.
Provided that the respondent agreed to participate, and that parental consent was obtained for those under 18, a time was either booked for the interview, or in some cases the interview was conducted directly.
The scores of the indicators were calculated for each respondent provided that half or more of the items were available.
If an item score was missing it was replaced by a mean of all other scores in the same category from the same respondent, provided that more than half of the items in the category were scored.
On the one hand, we keep only households whose members' economic activity and thus income source can be identified, given that the survey provides that information for the respondent and the partner, but not other household members.
No additional information on the definition of 'rural' was provided, so that respondents were free to interpret the term in their own way.
The first four categories were collapsed to represent disclosure before sex provided the respondent reported that the partner knew the respondent was HIV positive.
