Loading…

Protocol - High Blood Pressure During Pregnancy

Add to My Toolkit
Description

A measure to assess high blood pressure during a current pregnancy.

Specific Instructions

Ask questions 1 and 2 of all pregnant women. Conducting a blood pressure measurement provides additional specificity. See the Blood Pressure (Adult/Primary) measure for the blood pressure measurement protocol.

This protocol asks about a current pregnancy. For users wishing to collect historical data, the question could be asked of previous pregnancies.

Availability

Available

Protocol

Did you have (Have you had) any of these illnesses or complications during this pregnancy?

1. Toxemia including all of the following: high blood pressure, albumin (protein) in urine, and swelling of the ankles?

[ ] 1 No

[ ] 2 Yes

[ ] 8 Not Sure

2. High blood pressure without toxemia?

[ ] 1 No

[ ] 2 Yes

[ ] 8 Not Sure

Diagnostic Criteria:

Blood pressure during pregnancy recorded at or above an average of 140 mmHg systolic or 90 on two or more seated blood pressure measured properly with well maintained equipment. There are four subcategories:

1. Chronic hypertension as presence of hypertension before the 20th week of gestation or persistent hypertension for longer than 12 weeks postpartum.

2. Gestational hypertension with hypertension first detected after 20 weeks of gestation without proteinuria.

3. Preeclampsia-eclampsia with new onset of hypertension in a previously normotensive woman accompanied by more than 300 mg proteinuria per 24 hours.

4. Preeclampsia superimposed on underlying hypertension.

Personnel and Training Required

An interviewer who is trained to conduct personal interviews with individuals from the general population is required. The interviewer must be trained and found to be competent (i.e., tested by an expert) at the completion of personal interviews.* The interviewer should be trained to prompt respondents further if a "dont know" response is provided.

*There are multiple modes to administer this question (e.g., paper-and-pencil and computer-assisted interviews).

Equipment Needs

None

Requirements
Requirement CategoryRequired
Major equipment No
Specialized training No
Specialized requirements for biospecimen collection No
Average time of greater than 15 minutes in an unaffected individual No
Mode of Administration

Interviewer-administered questionnaire

Lifestage

Adolescent, Adult

Participants

Women ≥18 years old

Note: This protocol has been reliably used with women ≥18 years of age. However, the Cardiovascular Working Group suggests the same methodology can be used for women 13 years and over.

Selection Rationale

This protocol was selected because it asks specifically about high blood pressure during a current pregnancy, with and without toxemia. It was also used in a major U.S. health study.

Language

Chinese, English, Other languages available at source

Standards
StandardNameIDSource
Logical Observation Identifiers Names and Codes (LOINC) Preg high blood pressure proto 62393-4 LOINC
Human Phenotype Ontology Hypertension HP:000082 HPO
Human Phenotype Ontology Maternal hypertension HP:0008071 HPO
caDSR Form PhenX PX040401 - High Blood Pressure During Pregnancy 5822560 caDSR Form
Derived Variables

None

Process and Review

Not applicable.

Protocol Name from Source

Coronary Artery Risk Development in Young Adults (CARDIA), Y20 CARDIA VII, Pregnancy Questionnaire

Source

U.S. Department of Health and Human Services. National Institutes of Health. National Heart, Lung and Blood Institute. Coronary Artery Risk Development in Young Adults (CARDIA) Study. Y20 CARDIA VII. Pregnancy Questionnaire. Page 4. Questions 11a and 11b (source for questions 1 and 2).

National High Blood Pressure Education Program Working Group. (2000). Report of the National High Blood Pressure Education Program Working Group on High Blood Pressure in Pregnancy. American Journal of Obstetrics and Gynecology, 183(1), S1–S22 (source for Diagnostic Criteria).

General References

None

Protocol ID

40401

Variables
Export Variables
Variable Name Variable IDVariable DescriptiondbGaP Mapping
PX040401_HBP_No_Toxemia_During_Pregnancy
PX040401020000 Did you have (Have you had) any of these more
illnesses or complications during this pregnancy? High blood pressure without toxemia? show less
N/A
PX040401_Toxemia_During_Pregnancy
PX040401010000 Did you have (Have you had) any of these more
illnesses or complications during this pregnancy? Toxemia including all of the following: high blood pressure, albumin (protein) in urine, and swelling of the ankles? show less
Variable Mapping
Cardiovascular
Measure Name

High Blood Pressure During Pregnancy

Release Date

September 9, 2009

Definition

Measure to assess high blood pressure during pregnancy.

Purpose

To determine presence of high blood pressure during pregnancy in order to guide treatment protocols and avoid serious complications to the mother and child.

Keywords

Cardiovascular, high blood pressure during pregnancy, Coronary Artery Risk Development in Young Adults, CARDIABlood pressure, BP, hypertension, systolic, diastolic, toxemia, pregnancy, pregnant, pre-eclampsia, proteinuria, gestational hypertension, personal history

Measure Protocols
Protocol ID Protocol Name
40401 High Blood Pressure During Pregnancy
Publications

Asare, E. V., et al. (2022) Acute pain episodes, acute chest syndrome, and pulmonary thromboembolism in pregnancy. Hematology-American Society of Hematology Education Program. 2022 December; 2022(1): 388-407. doi: 10.1182/hematology.2022000376