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Table 1 Summary of the estimated measures at local and national level estimated using kriging and cokriging methods

From: Capturing the spatial variability of HIV epidemics in South Africa and Tanzania using routine healthcare facility data

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%
  1. aPartial rank correlation coefficient (PRCC) comparisons between population-based data and clinic-based data estimations
  2. 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
  3. 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
  4. dPercentage of areas with HIV prevalence in the upper quintile detected by the mode
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