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Table 6 Unadjusted prevalence and trend of pre-hypertension and hypertension based on AHA guideline in Iranian adolescents: SuRFNCD 2007–2011

From: National trends of pre-hypertension and hypertension among Iranian adolescents across urban and rural areas (2007–2011)

Year

2007

2008

2009

2011

P for trend

Girls

 Urban

  Pre-hypertension

6.10 (4.72–7.48)

5.97 (4.64–7.29)

5.80 (4.52–7.09)

9.82 (7.31–12.32)

0.18

  Hypertension

23.59 (21.04–26.15)

23.86 (21.34–26.38)

22.95 (20.39–25.50)

24.28 (20.42–28.15)

0.61

 Rural

  Pre-hypertension

10.51 (8.32–12.71)

10.29 (8.16–12.42)

10.04 (7.90–12.17)

16.42 (12.22–20.61)

0.06

  Hypertension

24.98 (22.04–27.92)

25.27 (22.28–28.27)

24.37 (21.50–27.25)

24.93 (20.72–29.14)

0.69

Boys

 Urban

  Pre-hypertension

18.59 (16.46–20.73)

16.32 (14.34–18.31)

18.35 (16.11–20.60)

21.33 (17.48–25.17)

0.66

  Hypertension

35.71 (33.08–38.34)

34.61 (32.07–37.16)

37.01 (34.20–39.82)

33.51 (28.96–38.07)

0.78

 Rural

  Pre-hypertension

20.80 (18.18–23.42)

18.21 (15.76–20.67)

20.60 (17.97–23.23)

23.70 (19.22–28.17)

0.12

  Hypertension

29.32 (26.49–32.15)

28.35 (25.55–31.16)

30.50 (27.63–33.38)

27.34 (23.11–31.56)

0.51