Age (years) Mean diastolic blood pressure  ± SD (mmHg)   Underweight (BMI<18.5) Normal weight (BMI  18.5-24.9)    Overweight (BMI  25.0-29.9) Obese (BMI>30.0) 11-20yrs 65.2±9.9 68.0±8.2 65.1±6.5 62.5±8.9 21-30yrs 73.9±13.4 74.9±11.0 75.3±9.6 76.7±11.4 31-40yrs 77.4±11.5 77.5±6.9 79.3±10.7 81.5±11.3 41-50yrs   78.5±8.3 81.8±8.3 82.4±13.1

Table 3B: mean DBP for the categories of BMI according to their age groups. Table 3B compares the mean DBP in the various categories. The mean DBP is highest in the overweight and obese age groups.