Exhibit 1 illustrates results from the urban sites of the 1994 sentinel surveillance. In Kisii, Nyeri and Kitui, infection rates are 2 to 10 percent. Although the ANC clients are generally representative of the general population there are differences between the two groups. Thus, the ANC data are adjust to produce an estimate of the prevalence for the entire country. The data are adjusted to include all adults over the age of 15.
Pregnant women are all sexually active.
The data are adjusted for women who have not been sexually active and therefore have not been exposed to HIV through sexual transmission. Sentinel sites were located in only 13 urban locations. In 1994, six rural locations were added. To produce an estimate for the entire country the sentinel surveillance results were weighted by the size of the adult population in the geographic areas represented by each sentinel site. Prior to the 1994 sentinel surveillance analysis, little information was available on HIV prevalence in rural areas.