School-based surveillance on visit-to-visit blood pressure variability and high blood pressure in children and adolescents

Table 3 Association between visit-to-visit blood pressure variability^a and childhood HBP

HBP	Model 1		Model 2		Model 3
HBP	OR (95% Cl)	P value	OR (95% Cl)	P value	OR (95% Cl)	P value
SBP-SD^a	4.40 (4.28–4.51)	< 0.0001	4.15 (4.04–4.27)	< 0.0001	5.70 (5.54–5.87)	< 0.0001
SBP-ARV^a	3.31 (3.25–3.38)	< 0.0001	3.23 (3.16–3.29)	< 0.0001	4.10 (4.01–4.20)	< 0.0001
SBP-CV^a	1.00 (1.00–1.00)	0.671	1.00 (1.00–1.00)	0.867	1.00 (1.00–1.00)	0.857
DBP-SD^a	4.88 (4.71–5.06)	< 0.0001	4.95 (4.77–5.13)	< 0.0001	4.70 (4.50–4.90)	< 0.0001
DBP-ARV^a	3.56 (3.47–3.66)	< 0.0001	3.64 (3.54–3.74)	< 0.0001	3.39 (3.28–3.50)	< 0.0001
DBP-CV^a	1.00 (1.00–1.00)	0.623	1.00 (1.00–1.00)	0.892	1.00 (1.00–1.00)	0.876

Model 1 was unadjusted. Model 2 was adjusted for age and BMI in 2018, and sex. Model 3 further included SES, region, mean SBP and DBP z-scores during 2012–2017, and BP measurement times, based on model 2
HBP, high blood pressure; DBP, diastolic blood pressure; SBP, systolic blood pressure; SD, standard deviation; ARV, actual real variability; CV, coefficient of variation
^aBP variability parameters were calculated based on BP z-scores during 2012–2017

ISSN: 1471-2261