Blood Pressure Z-Score

Maltenfort, Mitchell

Phenotype

Research-Ready

Blood Pressure Z-Score

Created

2022-04

Files

Phenotype Description

A function for computing blood pressure z-scores in a given cohort of patients, which can be used to measure hypertension and blood pressure control.

Downloadable content for this Phenotype includes two R files (cohorts.R and driver.R) and a specs folder, which includes the required concept sets.

Affiliation(s)

Children's Hospital of Philadelphia
PEDSnet Data Coordinating Center

Provenance

Developed as part of the Preserving Kidney Function in Children with Chronic Kidney Disease (PRESERVE) study.

Algothrithm Description

These functions will compute z-scores for systolic and diastolic blood pressure measurements based on age, height z-score, and sex. Two different algorithms, one from the Fourth Report and another from a manuscript published by the CHOP team, are included in the associated code file. Functions for computing height z-score and matching blood pressure values to the closest height z-score value are also included.

Development Code

https://github.com/PRESERVE-Coordinating-Center/PRESERVE_Variables/blob/main/analytic_code/bp_zscore.R

Vocabulary

LOINC

Clinical Subjects Headings

Blood Pressure
Blood Pressure Determination
Vital Signs
Hemodynamics

Data Source

Resource

PCORnet Common Data Model

(2025-01) Patient-Centered Outcomes Research Network

Documentation created by PCORnet® Network Partners for standardizing millions of data points from clinical information systems participating in the PCORnet Network into a common format.