According to the Kenya STEPwise Survey for Non-Communicable Diseases Risk Factors 2015 Report, those who had raised blood pressure (defined as having Systolic Blood Pressure (SBP) of >=140 mm Hg and/or diastolic blood pressure (DBP) >=90 mm Hg) was 23.8%. Those with severe hypertension (SBP of >=160 mm Hg and/or DBP >=100 mm Hg) was 8% (MoH-Kenya et al., 2015). Moreover, Kenyans with high blood pressure or on medication revealed a significantly higher prevalence among rural residents (25.3%). Highest prevalence was also seen among the middle-class (about 30%) compared to approximately 20% for individuals in the lowest quintile in terms of socio-economic status.

References:

MoH-Kenya, KNBS, & WHO. (2015). Kenya STEPwise Survey for Non Communicable Diseases Risk Factors 2015 Report. MoH-Kenya. https://www.health.go.ke/wp-content/uploads/2016/04/Executive-summary-6-2.pdf