Table IV.

Baseline patient characteristics grouped by follow-up ABPM phenotype

Patient characteristics	Hypertension (n = 20, 22.5%)	Prehypertension (n = 34, 38.2%)	Normal (n = 35, 39.3%)	P value
Female	3 (15%)	5 (15%)	12 (34%)	.13
Age <12 y	2 (10%)	3 (9%)	11 (31%)	.04
Age 12-17 y	18 (90%)	31 (91%)	24 (69%)
BMI z score	1.3 [0.2-2.2]	2.0 [1.1-2.2]	1.7 [0.8-2.0]	.33
Obesity	9 (45%)	22 (65%)	18 (51%)	.35
Height percentile	75.6 [57.2-95.8]	72.5 [50.9-93.8]	65.4 [27.9-81.1]	.12
ADHD	2 (10%)	3 (9%)	1 (3%)	.64
Family history of HTN	15 (75%)	18 (56%)	28 (82%)	.07
Family history of diabetes	6 (30%)	9 (28%)	14 (41%)	.54
Clinic auscultatory SBP index	1.01 [0.98-1.04]	1.06 [0.93-1.08]	1.02 [0.98-1.09]	.79
Clinic auscultatory DBP index	0.83 [0.74-0.94]	0.85 [0.75-0.95]	0.91 [0.82-1.00]	.20
Stable white coat hypertension	17 (85%)	31 (91%)	23 (66%)	.03
Clinic oscillometric SBP index	1.05 [1.02-1.12]	1.06 [1.01-1.11]	1.01 [0.93-1.12]	.30
Clinic oscillometric DBP index	0.92 [0.82-0.94]	0.89 [0.82-0.95]	0.87 [0.83-0.96]	.90
ABPM wake SBP index	0.91 [0.84-0.93]	0.90 [0.85-0.92]	0.88 [0.85-0.90]	.16
ABPM wake DBP index	0.87 [0.82-0.89]	0.82 [0.78-0.85]	0.83 [0.78-0.87]	.06
ABPM sleep SBP index	0.90 [0.86-0.94]	0.88 [0.84-0.91]	0.88 [0.85-0.90]	.21
ABPM sleep DBP index	0.87 [0.83-0.91]	0.80 [0.76-0.84]	0.84 [0.79-0.88]	.002
Adequate SBP nocturnal dipping	14 (70%)	26 (76%)	20 (57%)	.24
Adequate DBP nocturnal dipping	19 (95%)	32 (94%)	28 (80%)	.19
Specific follow-up ABPM abnormalities
Wake-only abnormality	2 (10%)	15 (44%)	N/A
Sleep-only abnormality	13 (65%)	14 (41%)	N/A
Both wake and sleep abnormalities	5 (25%)	5 (15%)	N/A

N/A, not applicable.