Racquel E. Kohler
University of North Carolina at Chapel Hill
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Publication
Featured researches published by Racquel E. Kohler.
International Journal of Radiation Oncology Biology Physics | 2013
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
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
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
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
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
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
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
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
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
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.