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Table 3 Differences in HIV prevalence between routine PMTCT HIV status and ANC surveillance tests in Mozambique

From: Routine data from prevention of mother-to-child transmission (PMTCT) HIV testing not yet ready for HIV surveillance in Mozambique: a retrospective analysis of matched test results

  n Prevalence (%) Difference in prevalence
   ANC surveillance Routine PMTCT Relative1 Absolute2
Region
  South 5729 20.70 19.71 −4.8 −1.00
  Center 8675 16.43 15.53 −5.5 −0.90
  North 6159 8.22 7.81 −4.9 −0.41
Year
  2007 10364 15.17 14.32 −5.6 −0.85
  2009 10199 15.15 14.44 −4.7 −0.71
Total 20563 15.16 14.38 −5.1 −0.78
  1. Notes:
  2. 1. relative difference between routine PMTCT HIV status (R) and ANC surveillance (S) calculated as (R-S)/S where R+/R- refers to routine PMTCT HIV status and S+/S- refers to ANC surveillance HIV status.
  3. 2. absolute difference between routine PMTCT HIV status (R) and ANC surveillance (S) calculated as (R-S).