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HDS-25 Data Details

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HDS-25 Increase the proportion of patients with hypertension in clinical health systems whose blood pressure is under control

About the Data

Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.

Data Source: 
National Ambulatory Medical Care Survey
Changed Since the Healthy People 2020 Launch: 
Baseline (Year): 
58.3 (2006–07)
Target-Setting Method: 
10 percent improvement

Number of ambulatory care visits by patients aged 18 years and over, excluding visits by pregnant women, with hypertension whose mean systolic blood pressure is less than 140 mm Hg and mean diastolic blood pressure is less than 90 mm Hg


Number of ambulatory care visits by adults aged 18 years and over with high blood pressure/hypertension, excluding visits by pregnant women

Comparable Healthy People 2010 Objective: 
Not applicable
Questions Used to Obtain the National Baseline Data: 

    From the 2006 and 2007 National Ambulatory Medical Care Survey patient record:


    (Question 6.4) VITAL SIGNS: Blood Pressure

    1. Systolic:_______________
    2. Diastolic:_______________


    (Question 5a) As specifically as possible, list diagnoses related to this visit including chronic conditions.

    1. Primary Diagnosis:_______________
    2. Other: _______________
    3. Other: _______________

    (Question 5b) Regardless of the diagnosis written in 5a, does the patient now have: (A list of 15 conditions is provided for the physicians to check. Condition relevant to this question is: has hypertension.)

Data Collection Frequency: 
Methodology Notes: 

    The primary objective of this analysis was to estimate the proportion of ambulatory care visits by adults where blood pressure is controlled. The unit of analysis for NAMCS the patient visit. All visits for hypertension with measured blood pressure levels were included in the analyses. All hypertension-related visits were identified by any ICD-9-CM code for hypertension (401–405) from up to three physician diagnoses or by “reason for visits” listed as “hypertension.” Pregnant women were excluded. Blood pressure was abstracted from recorded measurements of systolic and diastolic fields. Hypertension-related visits were then classified by measured blood pressure level as either controlled hypertension (systolic blood pressure

Revision History

Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.

Description of Changes Since the Healthy People 2020 Launch: 
In 2014 this objective was added as a new Developmental objective for the HDS topic area. This objective appeared in the Fall/Winter public comment period, and permanently on in 2015. In 2015, this objective became measurable. In 2017, the baseline was revised from 58.1 to 58.3 by excluding data from community health centers from the analysis for comparability with the 2012-2013 dataset which did not include data from community health centers. The target was adjusted from 63.9 to 64.1 to reflect the revised baseline using the original target-setting method.