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Validation of an Efficient Screening Tool to Identify Low-Income Women at High Risk for Hereditary Breast Cancer.
- Author(s): Stewart, Susan L;
- Kaplan, Celia P;
- Lee, Robin;
- Joseph, Galen;
- Karliner, Leah;
- Livaudais-Toman, Jennifer;
- Pasick, Rena J
- et al.
Published Web Locationhttps://doi.org/10.1159/000452095
Background/aimsWe compared the 6-Point Scale, a screening tool to identify low-income women for referral to genetic counseling, with genetic counselors' (GCs') recommendation and the Referral Screening Tool (RST).
MethodsRST and 6-Point Scale scores were computed for 2 samples: (1) S1, public hospital mammography clinic patients in 2006-2010 (n = 744), classified by GCs as high risk (meriting referral to counseling) or not high risk, and (2) S2, primary care patients enrolled in an education intervention study in 2011-2012 (n = 1,425). Sensitivity, specificity, and area under the ROC curve (AUROC) were computed for the 6-Point Scale score versus GC and RST classification as high risk.
ResultsThe 6-Point Scale had low sensitivity (0.27, 95% confidence interval [CI] 0.21-0.34) but high specificity (0.97, 95% CI 0.95-0.99) and AUROC (0.85, 95% CI 0.81-0.90) versus GC classification, and high sensitivity (S1: 0.90, 95% CI 0.79-1.00; S2: 0.94, 95% CI 0.87-0.97), specificity (S1: 0.95, 95% CI 0.93-0.97; S2: 0.94, 95% CI 0.93-0.96), and AUROC (S1: 0.98, 95% CI 0.96-0.99; S2: 0.98, 95% CI 0.98-0.99) versus the RST.
ConclusionThe 6-Point Scale compared favorably with the RST, a validated instrument, and is potentially useful as a simple tool for administration in a safety net setting, requiring minimal time investment by primary care physicians and their staff and no financial investment in tablet computers or software.
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