Effects of U.S. Preventive Services Task Force (USPSTF) guidelines on cervical cancer screening, incidence, and mortality.

Authors

Alexander Melamed

Alexander Melamed

Massachusetts General Hospital, Boston, MA

Alexander Melamed , Jose Alejandro Rauh-Hain , Günther Fink , Kaitlyn James , Laurel Rice , Deborah Schrag , Marcela G. del Carmen , Alexi A. Wright

Organizations

Massachusetts General Hospital, Boston, MA, The University of Texas MD Anderson Cancer Center, Houston, TX, Harvard T.H. Chan School of Public Health, Boston, MA, Univ of Virginia Health Science Ctr, Charlottesville, VA, Dana-Farber Cancer Institute, Boston, MA, Division of Gynecologic Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA

Research Funding

NIH

Background: To evaluate the consequences of USPSTF recommendation to stop pap testing in well-screened women age ≥65 years on cervical cancer incidence and mortality. Methods: In 2003, the USPSTF recommended that women age ≥65 years with prior normal cervical cancer screening could discontinue screening. Using nationally-representative survey data from the Behavioral Risk Factor Surveillance System, we constructed a joinpoint model to evaluate if the guideline affected pap smear discontinuation (defined as no pap for ≥5 years). We performed interrupted time-series to evaluate whether guideline-related pap-smear discontinuation affected stage-specific cervical cancer incidence and mortality in women ages ≥65, using women ages 30-64 as controls. Incidence and mortality rates were obtained from the Surveillance, Epidemiology, and End Result program, and adjusted for age and hysterectomy prevalence. Results: After declining from 1992 to 2004, the proportion of women reporting no pap smear for ≥5 years increased from 2004 to 2014 among women age ≥65 years and 30-64 years (p < 0.001 for both). However, the proportion of women who discontinued screening was greater in those age ≥65 years (10.7 versus 2.7 percentage points from 2004 to 2014, p < 0.001). Despite this, women age ≥65 had greater-than-expected declines in the incidence of localized (-2.3% per year, p = 0.05) and regional (-3.0% per year, p = 0.03) cervical cancer after 2004, compared with 30-64-year-old women. Incidence of distant cancer increased slightly in both groups, but the magnitude of the change did not differ between groups (p = 0.23). Cervical cancer mortality rates declined in both groups throughout the study period (p < 0.001), and there was no evidence that guideline-related pap-smear discontinuation led to excess mortality among women ≥65 compared to those 30-64 years. Conclusions: Compared to women unaffected by the USPTF guidelines, women age ≥65 years had larger declines in the incidence of locally- and regionally-confined cervical cancer, and no difference in the incidence of metastatic cancer. Recommendations to stop pap testing in women age ≥65 did not appear to have led to increased cervical cancer mortality.

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Abstract Details

Meeting

2018 ASCO Annual Meeting

Session Type

Poster Session

Session Title

Cancer Prevention, Hereditary Genetics, and Epidemiology

Track

Prevention, Risk Reduction, and Genetics

Sub Track

Cancer Prevention

Citation

J Clin Oncol 36, 2018 (suppl; abstr 1556)

DOI

10.1200/JCO.2018.36.15_suppl.1556

Abstract #

1556

Poster Bd #

127

Abstract Disclosures

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