Table 2

Baseline characteristics of the study group in 2008

CharacteristicsControls (n=26)Cases (n=26)p Value
Age (years)25.2 (4.2)25.9 (3.9)0.71
Male gender, n (%)26 (100)26 (100)
BMI (kg/m2)23.2 (0.9)23.7 (1.1)<0.05
Heart rate (beats/min)64.3 (8.1)61.6 (7.4)0.22
Office blood pressure (mm Hg)
 Systolic114.2 (3.8)144.1 (7.5)NC
 Diastolic68.7 (6.4)76.9 (9.0)NC
 Mean arterial pressure83.9 (5.0)99.3 (6.3)<0.001
 Pulse pressure45.6 (5.6)67.2 (12.0)<0.001
Race or ethnic group (n)
 White2323
 Black11
 Others22
Age group (years)
 20–2345
 24–2787
 28–3199
 32–3555
  • Values are shown as the mean (SD) or n (%). p is related to the t test for continuous versus categorical variables, and to Fisher's exact test for categorical variables. NC indicates not computed, because office systolic and diastolic blood pressure values were used to categorise the participants.

  • BMI, body mass index.