What percentage of adults in Amman, Jordan have undiagnosed high blood pressure?
What the Evidence Shows
What we've found so far suggests that a notable portion of adults in Amman, Jordan may have high blood pressure without knowing it. Based on the evidence we’ve reviewed, undiagnosed high blood pressure appears to be present in about 1 in 5 adults who were unaware of their condition at the time of a single health screening [1].
Our analysis of the available research shows that during a health check in Amman, many adults did not know they had high blood pressure, even though signs were detected during one screening visit . This means that among those who believed their blood pressure was normal or had never been checked, about 20% actually had high levels . Since this finding comes from one screening event, we can’t say how many of these cases would remain undiagnosed over time or how often people might discover their condition later. But what we can say is that the evidence we’ve reviewed leans toward a meaningful number of adults in Amman living with undiagnosed high blood pressure.
We only have one assertion to draw from so far, supported by 29.0 studies, with no conflicting data . Still, because this result comes from a single type of assessment—a one-time screening—our current analysis can’t confirm how widespread the issue is over time or across different groups in the city. There may be factors we haven’t accounted for, like access to healthcare or differences in lifestyle.
The takeaway: If you live in Amman or are similar to the adults in this group, a routine check could reveal something important—even if you feel fine. High blood pressure often has no symptoms, and this finding reminds us that screening can uncover hidden risks. We’ll update our analysis as more evidence becomes available.