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. 2004 Jul 17;329(7458):139. doi: 10.1136/bmj.38149.510139.7C

Table 1.

Mean (SD) systolic and diastolic blood pressures in participants from Young Hearts studies, 1990 and 2000

Age; blood pressure reading (mm Hg)
Males
Females
1990 2000 P value 1990 2000 P value
12 years: n=247 n=530 n=248 n=514
Systolic 111.0 (11.6) 102.9 (11.6) <0.001 111.5 (12.2) 104.2 (12.1) <0.001
Diastolic 67.9 (9.5) 59.1 (8.7) <0.001 70.9 (9.1) 60.4 (8.6) <0.001
15 years: n=249 n=485 n=252 n=482
Systolic 123.3 (12.4) 113.2 (12.8) <0.001 118.3 (11.8) 109.9 (11.1) <0.001
Diastolic 73.4 (9.4) 62.5 (8.4) <0.001 74.3 (8.8) 64.5 (8.7) <0.001