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Page 5 of 8  Original Research


              to 9.9/1000 in 2015. The intermittent increase (‘spikes’) in the   Age group ≥ 40 and < 60 years had the highest HIV or AIDS
              incidence rate of new HIV or AIDS cases on the database of   prevalence rates of 14.4 in 2005 and 38.3 in 2015, followed by
              both genders is an artefact that reflects changes during the   the age group ≥ 60 and < 70 years. The age group ≥ 0 and
              period in the overall number of members of contributing   < 6 years had the lowest HIV or AIDS prevalence rate followed
              medical aid schemes.                                  by the ≥ 6 and < 12 years age group with prevalence rates of
                                                                    2.1/1000 and 2.6/1000 in 2005 and 2015, respectively. In the
              Figures 3 and 4 illustrate the respective prevalence of   age group ≥ 18 and < 40 years, the HIV or AIDS prevalence
              HIV or AIDS patients and incidence rates of new HIV or   rate increased by 2.9/1000 beneficiaries between 2005 and
              AIDS  cases by  age  on  the  database per  1000  medical   2015. The prevalence rate in elderly patients, ≥ 70 years, was
              scheme beneficiaries.                                 2.7/1000 in 2015, which is an increase of 2.1 from 2005.



                     > 0 and < 6 years  ≥ 6 and < 12 years  ≥ 12 and < 18 years  ≥ 18 and < 40 years  ≥ 40 and < 60 years  ≥ 60 and < 70 years  ≥ 70 years  Total
                  45
                Prevalence rate per 10000 medical scheme beneficiaries
                  40
                  35

                  30

                  25
                  20

                  15

                  10
                   5

                   0
                       2005     2006    2007     2008     2009    2010     2011    2012     2013    2014     2015
                                                                  Year
              FIGURE 3: Prevalence rate of human immunodeficiency virus or acquired immunodeficiency syndrome patients per 1000 medical scheme beneficiaries as per age groups
              from 2005 to 2015.


                     > 0 and < 6 years  ≥ 6 and < 12 years  ≥ 12 and < 18 years  ≥ 18 and < 40 years  ≥ 40 and < 60 years  ≥ 60 and < 70 years  ≥ 70 years  Total
                  30
                Incidence rate per 1000 medical scheme  beneficiaries

                  25


                  20


                  15

                  10


                  5


                  0
                       2005     2006    2007     2008    2009     2010     2011    2012     2013    2014     2015
                                                                  Year
              FIGURE 4: Incidence rate of human immunodeficiency virus or acquired immunodeficiency syndrome per 1000 medical scheme beneficiaries as per age groups from 2005
              to 2015.

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