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Articles by L. A McClure
Total Records ( 2 ) for L. A McClure
  M Cushman , L. A McClure , V. J Howard , N. S Jenny , S. G Lakoski and G. Howard

Background: We evaluated prevalence and correlates of increased high-sensitivity C-reactive protein (hsCRP) in a large population of blacks and whites, and the impact of hsCRP measurement on coronary heart disease risk reclassification.

Methods: We studied 19 080 participants of the REGARDS (REasons for Geographic And Racial Differences in Stroke) study (age >45 years, without vascular diagnoses, and living dispersed across the US). A total of 8309 nondiabetic participants not using lipid-lowering medications were classified into 4 risk categories based on the Framingham vascular disease risk score. Participants with hsCRP <1 mg/L were reclassified to the next lower risk group, and those with hsCRP >3 mg/L to the next higher risk group. We also assessed reclassification of risk based on the Reynolds vascular risk score, incorporating hsCRP and family history.

Results: Overall, 40% of participants had hsCRP >3 mg/L. Blacks, women, and obese people were at highest risk for increased hsCRP. Among nondiabetic women at 5%–20% Framingham vascular predicted risk, hsCRP data led to reclassification of 48% to a higher risk group and 19% to a lower risk group. For men, these percentages were 24% and 40%. Blacks were more often reclassified to a higher risk group than whites. Reynolds vascular risk score data led to reclassification of 85% of women and 67% of men, almost exclusively to a lower risk group than the Framingham vascular score.

Conclusions: In this national study, a majority of participants, especially blacks and women, were reclassified to a different 10-year vascular risk category on the basis of hsCRP testing after risk assessment. With the inclusion of hsCRP testing data, the Reynolds risk score classified the population differently than the new Framingham vascular score. .

  A. W Kurian , L. A McClure , E. M John , P. L Horn Ross , J. M Ford and C. A. Clarke

Contralateral second primary breast cancers occur in 4% of female breast cancer survivors. Little is known about differences in risk for second primary breast cancers related to the estrogen and progesterone receptor (hormone receptor [HR]) status of the first tumor.


We calculated standardized incidence ratios (SIRs) and 95% confidence intervals (CIs) for contralateral primary breast cancers among 4927 women diagnosed with a first breast cancer between January 1, 1992, and December 31, 2004, using the National Cancer Institute’s Surveillance, Epidemiology, and End Results database.


For women whose first breast tumors were HR positive, risk of contralateral primary breast cancer was elevated, compared with the general population, adjusted for age, race, and calendar year (SIR = 2.22, 95% CI = 2.15 to 2.29, absolute risk [AR] = 13 cases per 10 000 person-years [PY]), and was not related to the HR status of the second tumor. For women whose first breast tumors were HR negative, the risk of a contralateral primary tumor was statistically significantly higher than that for women whose first tumors were HR positive (SIR = 3.57, 95% CI = 3.38 to 3.78, AR = 18 per 10 000 PY), and it was associated with a much greater likelihood of an HR-negative second tumor (SIR for HR-positive second tumors = 1.94, 95% CI = 1.77 to 2.13, AR = 20 per 10 000 PY; SIR for HR-negative second tumors = 9.81, 95% CI = 9.00 to 10.7, AR = 24 per 10 000 PY). Women who were initially diagnosed with HR-negative tumors when younger than 30 years had greatly elevated risk of HR-negative contralateral tumors, compared with the general population (SIR = 169, 95% CI = 106 to 256, AR = 77 per 10 000 PY). Incidence rates for any contralateral primary cancer following an HR-negative or HR-positive tumor were higher in non-Hispanic blacks, Hispanics, and Asians or Pacific Islanders than in non-Hispanic whites.


Risk for contralateral second primary breast cancers varies substantially by HR status of the first tumor, age, and race and/or ethnicity. Women with HR-negative first tumors have nearly a 10-fold elevated risk of developing HR-negative second tumors, compared with the general population. These findings warrant intensive surveillance for second breast cancers in women with HR-negative tumors.

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