Protocol - High Blood Pressure During Pregnancy
A measure to assess high blood pressure during a current pregnancy.
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.
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
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).
|Specialized requirements for biospecimen collection||No|
|Average time of greater than 15 minutes in an unaffected individual||No|
Mode of Administration
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.
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.
|caDSR Common Data Elements (CDE)||Person Hypertension During Pregnancy Indicator||2935349||CDE Browser|
|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|
Process and Review
Protocol Name from 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).
|Variable Name||Variable ID||Variable Description||dbGaP Mapping|
|PX040401020000||Did you have (Have you had) any of these more||N/A|
|PX040401010000||Did you have (Have you had) any of these more||Variable Mapping|
High Blood Pressure During Pregnancy
September 9, 2009
Measure to assess high blood pressure during pregnancy.
To determine presence of high blood pressure during pregnancy in order to guide treatment protocols and avoid serious complications to the mother and child.
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