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Table 2 Systolic and diastolic blood pressure of students in each age group after matched by height (mean ± s.d.)1

From: Blood pressure tables for Chinese adolescents: justification for incorporation of important influencing factors of height, age and sex in the tables

Age N SBP p value& DBP p value&
Boys Girls Boys Girls Boys Girls
12 887 887 99.4 ± 8.1 98.1 ± 8.0 <0.001 64.1 ± 5.2 63.8 ± 5.7 0.298
13 1181 1181 101.0 ± 8.8 99.2 ± 8.2 <0.001 64.7 ± 5.8 64.6 ± 5.6 0.532
14 1402 1402 103.3 ± 9.3 100.2 ± 8.4 <0.001 66.0 ± 6.4 65.5 ± 6.1 0.041
15 1316 1316 106.0 ± 9.3 101.1 ± 8.3 <0.001 67.5 ± 6.5 65.8 ± 6.0 <0.001
16 1193 1193 108.7 ± 9.8 101.4 ± 8.8 <0.001 68.7 ± 6.7 65.9 ± 6.0 <0.001
17 836 836 110.3 ± 9.8 103.0 ± 9.3 <0.001 69.8 ± 7.0 66.7 ± 6.1 <0.001
  1. 1Abbreviations are as follows: SBP systolic blood pressure; DBP diastolic blood pressure.
  2. &Paired T-test.