5. Systolic and/or diastolic blood pressure at or above the 95th percentile based on gender, and age and height percentiles. (Note: If a subject with no history of hypertension has a blood pressure reading at or above the 95th percentile, the subject will be allowed to rest for 15 minutes and the blood pressure measurement repeated. Up to 3 consecutive measurements at approximately 5 min intervals will be allowed. Subjects who continue to have systolic and/or diastolic blood pressure readings at or above the 95th percentile will be excluded from the study);