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Evidence for prevention and screening: recommendations in adults
Peter Hengstler1, Edouard Battegay, Jacques Cornuz
1Outpatient Department of Internal Medicine, University Hospital Basel, Switzerland. peter.hengstler@kssg.ch
Swiss Medical Weekly
|November 13, 2002
Summary
Primary prevention strategies, including counseling and immunizations, are cost-effective for asymptomatic adults. Evidence supports screening for several conditions, but not for lung, pancreatic, or ovarian cancers.
Area of Science:
- Preventive medicine
- Public health
- Clinical guidelines
Background:
- Preventive interventions are increasingly recommended for asymptomatic adults.
- Primary prevention is more cost-effective than secondary prevention.
- Key interventions include counseling (e.g., smoking cessation) and immunization status review.
Purpose of the Study:
- To review the evidence supporting various preventive interventions in asymptomatic adults.
- To differentiate between effective and ineffective screening methods.
- To highlight areas of controversy in preventive care.
Main Methods:
- Systematic review of existing evidence on preventive interventions.
- Analysis of cost-effectiveness data for primary versus secondary prevention.
- Evaluation of screening efficacy for various cancers and conditions.
Main Results:
- Primary prevention, including counseling and immunizations, is cost-effective.
- Effective screenings include hypertension, hyperlipidemia, cervical, colorectal, breast cancer, and obesity.
- Screening for lung, pancreatic, and ovarian cancers is not recommended due to lack of outcome improvement.
- Screening for diabetes, thyroid disorders, and prostate cancer remains controversial.
Conclusions:
- Healthcare providers should focus on evidence-based primary preventive measures.
- Screening should be limited to interventions with proven efficacy.
- Physicians must be aware of patient motivations for seeking checkups.