Table 3. Trend of prevalence of hypertension from 2004 to 2017 in Iran.
| Years | Number of Studies | Prevalence (%) |
|---|---|---|
| 2004-2006 | 14 | 26 |
| 2007-2009 | 25 | 26 |
| 2010-2012 | 11 | 22 |
| 2013-2017 | 8 | 26 |
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