One of the limitations of this study was the inclusion of only adults above the age of 35
years, which could contribute to an overestimation of the overall prevalence of hypertension in
the general population, while the majority of Ethiopians are in the younger age group. We
opted to survey older age group to get more cases to be able to look into the risk factors, which
obviously increase the prevalence of hypertension compared to younger adults. Lack of details
on exposures, such as salt intake, renal function test, and use of contraceptive drug is the other
limitation of the study. Also some of the information was based on self-reports and is subject
to recall bias. Variations in the blood pressure measurement methodology, age range of the
study participants, and the variation in the residence of the populations make direct comparisons
of studies difficult.