Table 2.

Classification of office BP values in combination with ABPM results and frequency of sleep disturbances in children with ADHD

Classification based on a single office BP and ABPM results*	N=55 (100%)
Normal BP (Office BP 90th percentile, ABPM average <95th percentile, Load <25%)	39 (70.9%)
White Coat HTN (Office BP ≥95th percentile, ABPM average <95th percentile, Load <25%)	3 (5.45%)
Pre-HTN Office (Office BP ≥90th percentile, ABPM average <95th percentile, Load ≥25%)	0
Masked HTN (Office BP <95th percentile, ABPM average >95th percentile, Load ≥25%)	2 (3.64%)
Ambulatory HTN (Office BP >95th percentile, ABPM average >95th percentile, Load 25–50%)	0
Unclassified 1 (Office BP ≤90th percentile, ABPM average <95th percentile, Load ≥25%)	6 (10.9%)
Unclassified 2 (Office BP ≥90th<95th percentile, ABPM average <95th percentile, Load <25%)	5 (9.1%)
Non-dipping (Mean sleep/(Mean wake – 0.1*Mean wake) > 1.0)	28 (50.91%)
Sleep disturbance based on a score > 39 on the SDSC questionnaire	43 (78.2%)

*Based on Flynn et al. (22).

ABPM Ambulatory blood pressure monitoring; ADHD Attention deficit/hyperactivity disorder; BP Blood pressure; HTN Hypertension; SDSC Sleep disturbance scale for children