Table 1.

Summary of the estimated measures at local and national level estimated using kriging and cokriging methods

Measure	Local level (ACDIS study area)		National level (Tanzania)
	Kriging	Cokriging	Kriging	Cokriging
PRCCa (p value)	0.56 (p < 0.005)	0.57 (p < 0.005)	0.76 (p < 0.005)	0.77 (p < 0.005)
LISA consistency areasb	59%	61%	71%	77%
LISA inconsistency areasc	32%	30%	16%	10%
HIV ‘hotspot’ areas detectedd	54%	56%	77%	84%

^aPartial rank correlation coefficient (PRCC) comparisons between population-based data and clinic-based data estimations

^bPercentage of area where the local indicator of spatial autocorrelation (LISA) estimations comparisons between population-based data and clinic-based data estimations were consistent with statistical significance

^cPercentage of area where the local indicator of spatial autocorrelation (LISA) estimations comparisons between population-based data and clinic-based data estimations were inconsistent with statistical significance

^dPercentage of areas with HIV prevalence in the upper quintile detected by the mode