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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: Hypertension. 2021 Apr 5;77(6):1815–1824. doi: 10.1161/HYPERTENSIONAHA.121.14585

Table 1.

Changes in hypertensive blood pressure prevalence when applying the American Academy of Pediatrics Clinical Practice Guideline Definitions

Study Location Study Authors Study design and Participant Pool
Population Overweight and/or Obesity Prevalence Blood Pressure determination and staging 4th report Pre-HTN CPG Elevated BP 4th report HTN CPG HTN Agreement between categories
US Studies Sharma et al, 2018 Cross-sectional 8 NHANES cycles 5–18 years
NHANES cycles A to H (1999-2014)
N= 15,647
Obesity: 10% Auscultation
Standardized research measurements
Mean of last 2-3 BPs
One visit
9.1 % 8.7% Stage 1: 2.6%
Stage 2: 0.06%
Stage 1: 5.1%
Stage 2: 0.4%
κ = 0.73 (95% CI, 0.71-0.75; P < .001)
Al Kibria, et al, 2019 Cross-sectional
2 groups of NHANES cycles, considered separately
8 to 17 years
NHANES:
2005-2008 cycles
N=3,633

2013-2016 cycles
N=3,471
Overweight/Obesity:
41% (2005-2008) 42% (2013-2016)
Auscultation
Standardized research measurements
Mean of first 1-3 BPs
One visit
2005-2008:
10.3%
2013-2016:
7.5%
2005-2008:
9.5%
2013-2016:
7.1%
2005-2008: 3.1%
2013-2016:
1.9%

2005-2008:
5.7%
2013-2016:
3.5%
Khoury et al, 2018 Cross-sectional
Secondary analysis of data from established research cohort (ref)
10-18 years
N=364
Obesity: 47% Auscultation
Standardized research measurements
Mean of 3 BPs

One visit
21% 16% 8% 13%
Condren et al, 2018 Cross-sectional
Electronic health record data
3-18 years
73% < 13 yrs
Well child visits
4 primary care clinics
Oklahoma
July-December 2017
N=2600
Overweight/obesity: 44% Automated
Clinical care measurement
One BP
One visit
16.1% 16.3% 9.5% 17.9% κ = 0.71
(95% CI: 0.69, 0.73).
Bowker’s test of symmetry: p<0.0001
Bell et al., 2019 Cross-sectional with repeated measures

School-based screening study
10 to 17 years
Majority 11-15 yrs

Houston, TX

2000-2017

N= 22,224
Overweight/
obesity: 37%
Automated
- ABPM device
- Office device

If BP normal: one BP, one visit

If BP ≥ elevated: mean of 2nd and 3rd BP, 2-3 visits

Standardized research measurements

Used BPs from up to 3 visits to classify hypertension stage
Based on mean BP at initial screen:
14.7%
Based on mean BP at initial screen:
16.3%
Based on mean BP at initial screen:
7.8%

Based on mean BPs at 3 screenings:
2.7%
Based on mean BP at initial screen:
6.9%
Based on mean BPs at 3 screenings:
2.3%
κ = 0.86
Overall agreement = 93.4%
Du et al, 2019 Cross-sectional
Bogalusa Heart Study
3-18 years
1973-2016
N=3940
Not reported Auscultation
Standardized research measurements
Mean of 6 BPs
Highest mean BP from any one study visit
19% 17% 6.5% 11% κ = 0.83 (95% CI, 0.82-0.85)
Kharbanda et al, 2019 Retrospective cohort study
Electronic health record data
10-17 years
PCP visits
21 PCP sites in upper Midwest
4/15/14-4/14/16
N= 2025 with pre-HTN/elevated BP at study entry and with 3 subsequent BPs available over 2 years
Overweight/obesity: 48.9% Automated
Standardized clinical care measurements
Mean of 1-2 BPs/visit
60% with only 1 BP per visit
3 visits
Had pre-HTN at study entry Had elevated BP at study entry Overall:
1.1%
Among youth with obesity:
1.9%
Overall:
5.9%
Among youth with obesity:
10.2%
Not reported
International Studies Yang, et al, 2019 Cross-sectional
6 national surveys
6-17 years
6 countries: China, India, Iran, Korea, Poland, Tunisia

N = 47,200
Overweight/obesity: 19.9% Auscultation
Standardized research measurements

Mean of last 2 BPs

One visit
14.9% 8.6% 7% 16.2% Not reported
Pirojsakul, et al, 2019 Cross-sectional with repeated measures
School-based screening study
8-13 years
Bangkok, Thailand
August 2017 to February 2018
N=536
Overweight/obesity: 36% Automated
Standardized research measurements
Mean of last 2 BPs
2 visits
Not reported Not reported 6.9% 10.8% Not reported
Antolini, et al, 2019 Cross-sectional
Patients from an obesity and elevated BP clinic
4-17 years
- 81% < 13 yrs
Milan, Italy
January 2009 to August 2018
N=951
Overweight/obesity: 76% Automated
Standardized measurements
Mean of 3 BPs
One visit
Hypertensive BP for the entire cohort was determined using percentile based thresholds for all, using separate normograms for 4th report and CPG estimates.
Reclassification of children 13 years of age and older when using static cutpoints was determined separately
16% Percentile based cutpoints for all ages (N=951):
14.8%
Static-cutpoints for ≥13 years only (N=177):
38%
34.9% Percentile based cutpoints for all ages (N=951):
40.9%
Static-cutpoints for ≥13 years only (n=177):
33.9%
Not reported
Dong et al, 2019 Cross sectional
Baseline data from RCT
6-17 years
7 provinces in China
2013
N = 50,336

Overweight/obesity: 22.4% Auscultation
Standardized research measurements
Mean of 3 BPs One visit
Not reported Not reported Children 6-12 years:
10.8%
Adolescents 13-17 years:
6.3%
Children 6-12 years:
16.7%
Adolescents 13-17 years:
7.9%

Abbreviations: BP – blood pressure; HTN – hypertension; NHANES – National Health and Nutrition Examination Study; PCP – primary care provider; RCT – randomized clinical trial