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KAIS 2007 1 - Kenya National AIDS & STI Control Programme ...

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Figure 9.3e HIV prevalence among adults aged 15‐64 years among those who reported donatingblood in the past year by source of blood donation request, <strong>Kenya</strong> <strong>2007</strong>.10HIV Prevalence (Weighted %)52.57.42.84.40BloodtransfusionserviceReplacement(outside ofKNBTS network)UnspecifiedsourceTotalSource of blood donation requestFigure 9.3e HIV prevalence among donors who reported that they donated based on a requestfrom a blood transfusion service in the year before the survey was significantly lower than donorswho reported that they donated based on a request from family or friends as a replacementdonor.HIV prevalence was 7.4% among donors who reported donating based on a request from family orfriends in the year prior to the survey. This was marginally higher than HIV prevalence amongpersons who reported that they had donated on behalf of a request from a blood transfusion service(2.5%) and persons who had donated based on a request from an unspecified source (2.8%) in the yearbefore the survey.Although the difference in HIV prevalence by source of donation request was marginally significant,lower HIV prevalence among persons who donated on behalf of a request from a blood transfusionservice may suggest that a volunteer‐based blood supply is safer. It is important to note that these datawere not adjusted for possible confounding factors such as age, which may have biased this finding.For example, persons who reported donating to a blood transfusion service were younger (medianage: 21.5 years) than persons who reported donating as a family/replacement donor (median age: 33years). Further, as described in Chapter 2 of this report, younger persons in the 20‐24 year age grouphad lower HIV prevalence rates than older persons in the 30‐34 year age group (5.2% vs. 11.6%,respectively).According to <strong>2007</strong> KNBTS statistics, 1.2% of all units donated to the KNTBS network tested positive forHIV. This figure is made up of mostly volunteers and some family/replacement donors. This figurewas not statistically different from the <strong>2007</strong> <strong>KAIS</strong> estimate of HIV prevalence among persons donatingto blood transfusion services (2.5%).<strong>KAIS</strong> <strong>2007</strong> 172

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