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Dive into the research topics where Racquel E. Kohler is active.

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Featured researches published by Racquel E. Kohler.


International Journal of Radiation Oncology Biology Physics | 2013

Two-year and lifetime cost-effectiveness of intensity modulated radiation therapy versus 3-dimensional conformal radiation therapy for head-and-neck cancer.

Racquel E. Kohler; N.C. Sheets; Stephanie B. Wheeler; Christopher M. Nutting; Emma Hall; Bhishamjit S. Chera

PURPOSE To assess the cost-effectiveness of intensity modulated radiation therapy (IMRT) versus 3-dimensional conformal radiation therapy (3D-CRT) in the treatment of head-and neck-cancer (HNC). METHODS AND MATERIALS We used a Markov model to simulate radiation therapy-induced xerostomia and dysphagia in a hypothetical cohort of 65-year-old HNC patients. Model input parameters were derived from PARSPORT (CRUK/03/005) patient-level trial data and quality-of-life and Medicare cost data from published literature. We calculated average incremental cost-effectiveness ratios (ICERs) from the US health care perspective as cost per quality-adjusted life-year (QALY) gained and compared our ICERs with current cost-effectiveness standards whereby treatment comparators less than


Journal of Womens Health | 2014

U.S. Preventive Services Task Force Recommendations and Cancer Screening Among Female Medicare Beneficiaries

Ramzi G. Salloum; Racquel E. Kohler; Gail A. Jensen; Stacey Sheridan; William R. Carpenter; Andrea K. Biddle

50,000 per QALY gained are considered cost-effective. RESULTS In the first 2 years after initial treatment, IMRT is not cost-effective compared with 3D-CRT, given an average ICER of


American Journal of Clinical Oncology | 2014

Costs of care in a matched pair comparison of intensity-modulated radiation therapy (IMRT) versus conventional radiation therapy (CRT) for the treatment of head and neck cancer.

N.C. Sheets; Stephanie B. Wheeler; Racquel E. Kohler; D. Fried; Paul Brown; Bhishamjit S. Chera

101,100 per QALY gained. However, over 15 years (remaining lifetime on the basis of average life expectancy of a 65-year-old), IMRT is more cost-effective at


Medical Care | 2013

Is medical home enrollment associated with receipt of guideline-concordant follow-up care among low-income breast cancer survivors?

Stephanie B. Wheeler; Racquel E. Kohler; Ravi K. Goyal; Kristen Hassmiller Lich; Ching Ching Lin; Alexis Moore; Timothy W. Smith; Cathy L. Melvin; Katherine E. Reeder-Hayes; Marisa Elena Domino

34,523 per QALY gained. CONCLUSION Although HNC patients receiving IMRT will likely experience reduced xerostomia and dysphagia symptoms, the small quality-of-life benefit associated with IMRT is not cost-effective in the short term but may be cost-effective over a patients lifetime, assuming benefits persist over time and patients are healthy and likely to live for a sustained period. Additional data quantifying the long-term benefits of IMRT, however, are needed.


Annals of Internal Medicine | 2015

Global Noncommunicable Disease Research: Opportunities and Challenges.

Lindsay M. Jaacks; Mohammed K. Ali; John A. Bartlett; Gerald S. Bloomfield; William Checkley; Thomas A. Gaziano; Douglas C. Heimburger; Sandeep P. Kishore; Racquel E. Kohler; Kasia J. Lipska; Olivia Manders; Christine Ngaruiya; Robert N. Peck; Melissa S. Burroughs Peña; David Watkins; Karen R. Siegel; K.M. Venkat Narayan

BACKGROUND Medicare covers several cancer screening tests not currently recommended by the U.S. Preventive Services Task Force (Task Force). In September 2002, the Task Force relaxed the upper age limit of 70 years for breast cancer screening recommendations, and in March 2003 an upper age limit of 65 years was introduced for cervical cancer screening recommendations. We assessed whether mammogram and Pap test utilization among women with Medicare coverage is influenced by changes in the Task Forces recommendations for screening. METHODS We identified female Medicare beneficiaries aged 66-80 years and used bivariate probit regression to examine the receipt of breast (mammogram) and cervical (Pap test) cancer screening reflecting changes in the Task Force recommendations. We analyzed 9,760 Medicare Current Beneficiary Survey responses from 2001 to 2007. RESULTS More than two-thirds reported receiving a mammogram and more than one-third a Pap test in the previous 2 years. Lack of recommendation was given as a reason for not getting screened among the majority (51% for mammogram and 75% for Pap). After controlling for beneficiary-level socioeconomic characteristics and access to care factors, we did not observe a significant change in breast and cervical cancer screening patterns following the changes in Task Force recommendations. CONCLUSIONS Although there is evidence that many Medicare beneficiaries adhere to screening guidelines, some women may be receiving non-recommended screening services covered by Medicare.


North Carolina medical journal | 2014

Health care utilization from chemotherapy-related adverse events among low-income breast cancer patients: effect of enrollment in a medical home program.

Ravi K. Goyal; Stephanie B. Wheeler; Racquel E. Kohler; Kristen Hassmiller Lich; Ching Ching Lin; Katherine E. Reeder-Hayes; Anne Marie Meyer; Deborah K. Mayer

Objectives:Intensity-modulated radiation therapy (IMRT) has been rapidly adopted for the treatment of head and neck cancer. Limited comparative effectiveness data suggest that IMRT reduces the incidence of xerostomia and improves quality of life. We assess the cost of IMRT versus the older conventional radiation therapy (CRT) relative to other potential drivers of cost in patients with head and neck cancer. Methods:We compared patients treated with definitive radiation with or without chemotherapy for squamous cell carcinoma of the head and neck treated between 2000 and 2009. IMRT-treated patients were matched to CRT-treated patients by site, stage, and smoking status. Itemized billing charges were obtained for each patient and used to estimate cost using the Medicare fee schedule. Multivariate analysis was used to assess the influence of demographic, clinical, and treatment variables on total, pretreatment, during treatment, and follow-up costs. Results:Models indicate that compared with CRT, IMRT was associated with, on average, a


Cancer | 2015

Association between medical home enrollment and health care utilization and costs among breast cancer patients in a state Medicaid program

Racquel E. Kohler; Ravi K. Goyal; Kristen Hassmiller Lich; Marisa Elena Domino; Stephanie B. Wheeler

5881 increase in total costs (P=0.043), a


Patient Preference and Adherence | 2015

Developing a discrete choice experiment in Malawi: eliciting preferences for breast cancer early detection services

Racquel E. Kohler; Clara N. Lee; Satish Gopal; Bryce B. Reeve; Bryan J. Weiner; Stephanie B. Wheeler

1700 decrease in pretreatment costs (P=0.014), a


Journal of Global Oncology | 2016

Breast Cancer Screening in Low- and Middle-Income Countries: A Perspective From Malawi

Lily Gutnik; Beatrice Matanje-Mwagomba; Vanessa Msosa; Suzgo Mzumara; Blandina Khondowe; Agnes Moses; Racquel E. Kohler; Lisa A. Carey; Clara N. Lee; Satish Gopal

4768 increase in costs during treatment (P=0.004), and no significant difference in follow-up costs. Positron emission tomography scans, cancer recurrence, and comorbidity were also associated with higher total costs in this sample. Conclusions:Use of IMRT relative to CRT was strongly correlated with higher total costs, but disease control, patient comorbidity, and use of positron emission tomography also had significant effects on overall costs. Cost-effectiveness models should be developed to assess whether the potential benefits of IMRT are worth the associated investment.


International Journal of Std & Aids | 2016

High rates of cervical cancer among HIV-infected women at a referral hospital in Malawi.

Racquel E. Kohler; Jennifer H. Tang; Satish Gopal; Lameck Chinula; Mina C. Hosseinipour; N. George Liomba; Grace Chiudzu

Background:Community Care of North Carolina (CCNC) initiated an innovative medical home program in the 1990s to improve primary care in Medicaid-insured populations. CCNC has been successful in improving asthma, diabetes, and cardiovascular outcomes but has not been evaluated in the context of cancer care. We explored whether CCNC enrollment was associated with guideline-concordant follow-up care among breast cancer survivors. Methods:Using state cancer registry records matched to Medicaid claims, we identified women 18 to 64 years old who were diagnosed with stage 0, I, II, or unstaged breast cancer from 2003 to 2007 and tracked their monthly CCNC enrollment. Using published American Society for Clinical Oncology guidelines to define our outcomes, we employed multivariate logistic regressions to examine, as a function of CCNC enrollment, receipt of mammogram and at least 2 physical examinations/history-taking visits within observational windows consistent with the guidelines. Results:Of the 840 women, approximately half were enrolled into the CCNC for some time during the study period. Between 40% and 85% received follow-up mammogram in accordance with guidelines, with significant variation by CCNC status, and 95% of women received at least 2 physical examinations/history-taking visits. In multivariate models, increasing months of CCNC enrollment was significantly positively associated with receipt of follow-up mammogram but not with physical examinations/history-taking visits. Conclusions:Results suggest that CCNC enrollment is associated with guideline-concordant follow-up care for Medicaid-insured survivors. Given the growing population of cancer survivors and increased emphasis on primary care medical homes, future studies should explore what factors are associated with medical home participation and whether similar findings are observed with extended follow-up.

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Stephanie B. Wheeler

University of North Carolina at Chapel Hill

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Ravi K. Goyal

University of North Carolina at Chapel Hill

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Kristen Hassmiller Lich

University of North Carolina at Chapel Hill

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Satish Gopal

University of North Carolina at Chapel Hill

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Katherine E. Reeder-Hayes

University of North Carolina at Chapel Hill

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Alexis Moore

University of North Carolina at Chapel Hill

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Cathy L. Melvin

Medical University of South Carolina

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Clara N. Lee

University of North Carolina at Chapel Hill

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Marisa Elena Domino

University of North Carolina at Chapel Hill

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