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Table 1 Area-specific characteristics of adolescents, aged 15–19 years: SuRFNCD 2007–2011

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

Year Urban Rural
2007 (n = 1718) 2008 (n = 1819) 2009 (n = 1550) 2011 (n = 615) 2007 (n = 1218) 2008 (n = 1169) 2009 (n = 1312) 2011 (n = 314)
Age (years) 17.60 ± 0.03 17.59 ± 0.03 17.59 ± 0.04 17.73 ± 0.06 17.55 ± 0.04 17.56 ± 0.04 17.61 ± 0.04 17.62 ± 0.08
Sex (%)
 Girls 751 (43.7) 811 (44.6) 716 (46.2) 332 (54) 551 (45.2) 528 (45.2) 603 (46) 166 (52.9)
 Boys 967 (56.3) 1008 (55.4) 834 (53.8) 283 (46) 667 (54.8) 641 (54.8) 709 (54) 148 (47.1)
Physical activity (% ± SE)
 High 38.39 ± 1.02 33.50 ± 0.99 32.98 ± 1.07 33.35 ± 1.76 49.25 ± 1.27 48.99 ± 1.27 49.45 ± 1.21 36.96 ± 2.49
 Moderate 29.80 ± 1.10 25.27 ± 1.01 28.81 ± 1.14 22.63 ± 1.66 24.50 ± 1.22 19.99 ± 1.16 22.26 ± 1.15 21.84 ± 2.30
 Low 31.80 ± 1.06 41.21 ± 1.06 38.20 ± 1.16 44.01 ± 1.80 26.3 ± 1.18 31.01 ± 1.25 28.27 ± 1.13 41.18 ± 2.50
BMI (kg/m2) 21.73 ± 0.08 21.80 ± 0.08 21.80 ± 0.09 21.86 ± 0.16 21.18 ± 0.08 21.30 ± 0.09 21.41 ± 0.09 21.21 ± 0.21
SBP (mmHg) 114.09 ± 0.28 112.83 ± 0.28 113.69 ± 0.28 115.56 ± 0.48 115.57 ± 0.34 115.03 ± 0.35 115.07 ± 0.33 116.73 ± 0.63
DBP (mmHg) 72.77 ± 0.22 72.77 ± 0.21 73.58 ± 0.22 72.09 ± 0.39 71.59 ± 0.26 72.10 ± 0.27 71.79 ± 0.25 70.60 ± 0.49
  1. Age, physical activity, BMI, SBP, and DBP values are mean ± SEM. Variables (except sex) are weighted according to sex