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Screening, treatment, and control of hypertension in US private physician offices, 2003-2004
1Palo Alto Medical Foundation Research Institute, 795 El Camino Real, Stanford, CA 94301, USA. maj@pamfri.org
Insights
Essential hypertension screening, treatment, and control show significant gaps in US primary care. Interventions are needed to align routine practice with evidence-based guidelines for better blood pressure management.
Area of Science:
- Cardiovascular Medicine
- Public Health
- Health Services Research
Background:
- Essential hypertension is a prevalent condition in middle-aged and senior populations within US primary care.
- Current data on hypertension screening, treatment, and control practices are limited.
- Understanding variations in care is crucial for improving patient outcomes.
Purpose of the Study:
- To examine the rates of hypertension screening, treatment, and control during US office visits.
- To identify factors associated with variations in these practices.
- To inform targeted interventions for evidence-based hypertension management.
Main Methods:
- Analysis of National Ambulatory Medical Care Survey data from 2003-2004.
- Examination of office visits for patients aged 18 years and older.
- Statistical analysis to determine rates and associated factors for screening, treatment, and control.
Main Results:
- Blood pressure was measured in 56% of all adult visits and 93% of hypertensive patient visits.
- Only 62% of hypertensive patients received treatment, with diuretics being the most common agent.
- Just 39% of treated visits achieved recommended blood pressure goals.
- Factors like provider type, visit type, geographic region, and comorbidities influenced screening, treatment, and control rates.
Conclusions:
- Significant disparities exist in hypertension screening, treatment, and control in US primary care.
- Non-primary care providers and non-well care visits were associated with lower screening rates.
- Geographic region, visit type, and comorbidities impacted treatment and control.
- Further interventions are necessary to bridge the gap between evidence-based guidelines and routine clinical practice.
Abstract:
Essential hypertension is the most common diagnosis in US primary care settings for middle-aged persons and seniors. Yet, data on hypertension screening, treatment, and control in such settings are limited. We analyzed National Ambulatory Medical Care Survey data to examine the rates of and factors associated with hypertension screening, treatment, and control during US office visits in 2003 and 2004. Blood pressure was measured in 56% (95% confidence limits: 52% to 59%) of all visits by patients > or =18 years of age and in 93% (95% confidence limits: 89% to 96%) of hypertensive patient visits. Among the latter, 62% (95% confidence limits: 55% to 69%) were treated. Diuretics were the most commonly prescribed antihypertensive agents (46%; 95% confidence limits: 41% to 50%), and combination therapy was reported in 58% (95% confidence limits: 54% to 63%) of treated visits. Only 39% (95% confidence limits: 34% to 43%) of treated visits were at recommended blood pressure goals. The odds of not being screened for hypertension were notably greater for visits with a provider other than a primary care physician or cardiologist (10.0; 95% confidence limits: 5.5 to 16.7) and for nonwell care visits (5.6; 95% confidence limits: 3.6 to 8.3). Greater odds of not being treated for hypertension were noted by geographic region (South versus Northeast: 2.6; 95% confidence limits: 1.2 to 5.6) and visit type (first time versus return visits; 1.6; 95% confidence limits: 1.1 to 2.4). The odds of not having blood pressure controlled were greater for patients with comorbidities (1.6; 95% confidence limits: 1.1 to 2.4). In conclusion, more intervention efforts are needed to further reduce the gaps and variations in routine practice in relation to evidence-based practice guidelines for hypertension screening, treatment, and control.
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