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Table 3 Blood pressure levels (mean ± SD) in a rural population of Yi ethnic group in southwest China, 2012

From: Prevalence, awareness, medication, control, and risk factors associated with hypertension in Yi ethnic group aged 50 years and over in rural China: the Yunnan minority eye study

Age group (yrs) Variable (mmHg) Men (n = 950) Women (n = 1258) T value P value
50-59 SBP 138.57 ± 23.58 139.41 ± 24.26 1.118 0.264
  DBP 82.05 ± 13.25 76.39 ± 13.63 1.545 0.123
60-69 SBP 143.79 ± 26.21 144.92 ± 26.18 1.390 0.165
  DBP 79.31 ± 14.37 78.01 ± 13.28 1.338 0.181
70-79 SBP 145.67 ± 27.01 149.46 ± 18.00 0.464 0.643
  DBP 86.12 ± 12.14 84.98 ± 13.57 0.687 0.493
80- SBP 147.82 ± 28.35 148.26 ± 23.15 0.358 0.721
  DBP 83.32 ± 15.26 78.62 ± 12.66 1.441 0.154
Total SBP 142.24 ± 26.09 143.58 ± 25.90 1.201 0.230
  DBP 79.34 ± 14.02 78.00 ± 13.70 2.263 0.024