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Ned Calonge

Publications and source records attributed to Ned Calonge.

11 recordsLinked to original sources
PubMed2004

The meaning of the U.S. Preventive Services Task Force grade I recommendation: screening for hepatitis C virus infection.

The U.S. Preventive Services Task Force (USPSTF) formulates evidence-based recommendations for clinical preventive services. These recommendations are communicated by letter grades that reflect the quality of evidence and the magnitude of net health benefit expected from delivering the preventive service. When the USPSTF finds insufficient evidence to determine the balance of health benefits or harms of delivering a preventive service, because of a lack of studies, poor-quality studies, or good-quality studies with conflicting results, the USPSTF assigns the service an I letter grade. The USPSTF found insufficient evidence to recommend for or against screening for hepatitis C virus infection in high-risk individuals (I letter grade). This recommendation reflects the need for further research that would provide adequate evidence to assess the net health benefit for persons screened for hepatitis C virus infection.

Advisory Committees↗
PubMed2003

Mammography screening matters for young women with breast carcinoma: evidence of downstaging among 42-49-year-old women with a history of previous mammography screening.

BACKGROUND: Breast carcinoma is the leading cause of death for women between the ages of 40 and 49 years, yet questions linger regarding the effectiveness of screening mammography in reducing mortality rates among women of this age. In the current study, the authors report on the association between cancer stage at diagnosis and a history of mammography screening in a clinical setting that has emphasized informed choice regarding mammography screening for women in this age group. METHODS: Previous mammographic screening for 247 breast cancer patients 42-49 years of age who were diagnosed at Kaiser Permanente Colorado during 1994-2000 was evaluated relative to cancer stage. Cancer stage was dichotomized into early (American Joint Committee on Cancer [AJCC] Stages 0 and I) and late (AJCC Stages II-IV) and previous screening was defined as at least one normal screening mammogram within 24 months before the breast carcinoma diagnosis. RESULTS: Women who were screened were less likely to be diagnosed at a late stage than were women who were not screened (40% vs. 52% late stage, respectively). Adjusted for age, year of diagnosis, and family history, screened women were 0.56 (95% confidence interval = 0.32-0.97) times as likely as unscreened women to be diagnosed at a late stage. CONCLUSIONS: Women 42-49 of years with breast carcinoma who undergo regular screening mammography have a more favorable cancer stage than do women with breast carcinoma who do not undergo regular screening. This downstaging of breast carcinoma is likely to translate into improved breast carcinoma survival resulting from screening mammography for women 40-49 years of age.

Adult↗
PubMed2003

Validity of women's self-reports of cancer screening test utilization in a managed care population.

This study was undertaken to examine the validity of self-reported data on breast and cervical cancer screening behavior. An abbreviated version of the Behavioral Risk Factor Surveillance System telephone survey, including questions on mammography, clinical breast examination (CBE), and Papanicolaou test utilization, was administered to a sample of 480 women aged 40-74 years, enrolled in Kaiser Permanente Colorado for at least 5 years. Screening information reported in the telephone interview was compared with that abstracted from respondents' medical records. The vast majority of women had a mammogram, CBE, and Pap test according to both self-report and medical record. Sensitivity for determining whether her last test was within 2 years (3 years for Pap test) exceeded 95% for all, whereas specificities were <55%. The percentage of overall agreement between self-reported and recorded information was 88.4% (kappa = 0.62) for mammography, 87.9% (kappa = 0.45) for CBE, and 87.2% (kappa = 0.54) for Pap test. Pearson correlations between self-reported and recorded information for specific time interval since most recent mammogram, CBE, and Pap test were 0.72, 0.58, and 0.65, respectively. Correlation increased greatly when time interval was allowed to vary by +/-1 year. In most cases of disagreement, the self-report underestimated the time since last screening. These results suggest that self-reporting of breast and cervical cancer screening is fairly accurate in this managed care population, although women tend to underestimate the time since their last screening.

Adult↗