1
|
Alyabsi MS, Alqarni AH, Almutairi AF, Alselaim NA, Algarni MA, Alshammari KM. Real-life experiences and barriers to adjuvant chemotherapy in Saudi patients with advanced stage II and stage III colon cancer. Saudi J Gastroenterol 2024; 30:114-122. [PMID: 37955212 PMCID: PMC10980296 DOI: 10.4103/sjg.sjg_261_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Colorectal cancer is the most common malignancy in Saudi males and third most common in females. Patients with locally advanced colon cancer may eventually develop metastatic disease if not treated promptly and according to guidelines. The recent National Comprehensive Cancer Network guideline recommends tumor resection followed by adjuvant chemotherapy for stage III and high-risk stage II tumors. Therefore, the objective of this study was to characterize patients with locally advanced colon cancer and identify factors associated with the use of adjuvant chemotherapy and the addition of oxaliplatin in locally advanced colon cancer patients. METHODS All patients diagnosed with locally advanced colon cancer at National Guard Health Affairs (NGHA) during 2016-2021 were investigated. Patients' characteristics were compared using Chi-square and Fisher exact test, whereas predictors of adjuvant chemotherapy/Oxaliplatin use were identified using univariate and multivariate logistic regression. RESULTS Out of 222 patients diagnosed with locally advanced colon cancer, 133 received adjuvant chemotherapy. Factors associated with adjuvant chemotherapy administration were age and smoking status. In the multivariable analysis, older patients were less likely to receive oxaliplatin than younger patients. Stage III patients diagnosed during 2019-2021 had 5.61 times higher odds of receiving oxaliplatin. CONCLUSION The findings of this study show that older patients and smokers are less likely to be treated with adjuvant chemotherapy. Moreover, age as well as diagnosis year were important determinants of oxaliplatin administration in stage III locally advanced colon cancer patients.
Collapse
Affiliation(s)
- Mesnad S. Alyabsi
- Population Health Research Section, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Anwar H. Alqarni
- Population Health Research Section, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Princess Noura Bint Abdul Rahman University, Health, and Rehabilitation Sciences College, Riyadh, Saudi Arabia
| | - Adel F. Almutairi
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Nahar A. Alselaim
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Mohammed A. Algarni
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Department of Oncology, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Kanan M. Alshammari
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Department of Oncology, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia
| |
Collapse
|
2
|
Hassan S, Miles A, Rachet B, Morris M. Variations in the Type of Adjuvant Chemotherapy Among Stage III Colon Cancer Patients in England. J Gastrointest Cancer 2023; 54:1193-1201. [PMID: 36602753 DOI: 10.1007/s12029-022-00899-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2022] [Indexed: 01/06/2023]
Abstract
PURPOSE Treatment with any adjuvant chemotherapy for stage III colon cancer has been shown to differ between population groups. Few studies, however, explore variations in the type of adjuvant chemotherapy received, none of which are from the UK. The aim of this study is to explore variation in the type of chemotherapy received by stage III colon cancer patients in England. METHODS Data from the national cancer registry was linked to the Systemic Anti-Cancer Therapy database, which provides detailed information on treatment of malignant diseases from all NHS England chemotherapy providers. Demographic and clinical characteristics were compared between those who received monotherapy (fluoropyrimidine) or combination chemotherapy (fluoropyrimidine and oxaliplatin) among stage III colon cancer patients between 2012 and 2017. RESULTS Of 8750 patients who received adjuvant chemotherapy, 22.3% (n = 2359) received monotherapy and 60.4% (n = 6391) received combination therapy. The odds of receiving combination therapy decreased with age. Those from the most deprived group had half the odds (OR: 0.5, CI: 0.42, 0.59, p < 0.001) of receiving combination therapy compared to the least deprived group. Women were 14% less likely to get combined therapy (OR: 0.86, CI: 0.77, 0.95, p = 0.005). Those with the largest tumour size (T4) and those with more than three lymph nodes involved (N2) had 30% (OR: 1.30; CI: 1.07, 1.59; p = 0.008) and 50% (OR: 1.50; 1.34, 1.69; p < 0.001) higher odds of receiving combination therapy compared to T1 or T2 and N1, respectively. CONCLUSION There is variation in the type of chemotherapy received for stage III colon cancer patients by sociodemographic factors, despite clear clinical guidelines.
Collapse
Affiliation(s)
- Syreen Hassan
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, 15-17 Tavistock Place, London, WC1H 9SH, UK.
- Department of Psychological Sciences, Birkbeck, University of London, Malet Street, London, WC1E 7HX, United Kingdom.
| | - Anne Miles
- Department of Psychological Sciences, Birkbeck, University of London, Malet Street, London, WC1E 7HX, United Kingdom
| | - Bernard Rachet
- Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, United Kingdom
| | - Melanie Morris
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, 15-17 Tavistock Place, London, WC1H 9SH, UK
| |
Collapse
|
3
|
Chen Y, Shankaran V, Hahn EE, Haupt EC, Bansal A. Underutilization or appropriate care? Assessing adjuvant chemotherapy use and survival in 3 heterogenous subpopulations with stage II/III colorectal cancer within a large integrated health system. J Manag Care Spec Pharm 2023; 29:635-646. [PMID: 37276035 PMCID: PMC10387960 DOI: 10.18553/jmcp.2023.29.6.635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BACKGROUND: Clinical guidelines have recommended adjuvant chemotherapy (ACT) for patients with high-risk stage II colon cancer, although the survival benefit is unclear. ACT is also recommended for patients with stage III colon cancer to reduce the risk of recurrence and mortality. For stage II/III rectal cancer, however, the role of perioperative chemotherapy (PCT, adjuvant or neoadjuvant) remains controversial, resulting in substantial variation in its use in clinical practice. OBJECTIVES: To understand real-world use and predictors of ACT or PCT use and survival outcomes in 3 heterogeneous patient groups with colorectal cancer (CRC), and to inform the evidence gap between guideline-based care and clinical practice. METHODS: This retrospective cohort study included patients with an initial stage II/III CRC diagnosis between 2008 and 2013 identified from Kaiser Permanente Southern California electronic health record databases. Patients were eligible if they were aged 18-74 years at diagnosis and received primary curative surgery. We fitted mixed effects logistic regression models to evaluate predictors of ACT receipt and Cox proportional hazards models on propensity score-matched (PS-matched) samples to assess the association between ACT/PCT receipt and survival. RESULTS: We included 1,690 patients with colon cancer (stage II: 820 and stage III: 870) and 587 patients with rectal cancer (stage II: 241 and stage III: 346). We found that 65% of patients with high-risk stage II colon cancer, 15% of those with stage III colon, and 15% of those with stage II/III rectal cancer did not receive ACT/PCT. Patients with stage II colon cancer with T4 stage (odds ratio [OR] = 5.79, 95% CI = 3.33 - 10.06) and a lower comorbidity score were more likely to receive ACT (high vs low Charlson score: OR = 0.69, 95% CI = 0.55 - 0.87). Patients with stage III rectal cancer were more likely to receive PCT than those with stage II disease (OR = 7.85, 95% CI = 2.07 - 29.74). Patients with another cancer diagnosis prior to CRC diagnosis were less likely to receive PCT (OR = 0.37, 95% CI = 0.16 - 0.85). ACT/PCT use was associated with improved overall survival among patients with high-risk stage II colon cancer (PS-matched hazard ratio [HR] = 0.42, 95% CI = 0.25 - 0.70) and those with stage III CRC (stage III colon: PS-matched HR = 0.3, 95% CI = 0.25 - 0.36; stage III rectal: PS-matched HR = 0.2, 95% CI = 0.13 - 0.31). CONCLUSIONS: We found potential underuse of appropriate chemotherapy treatment in patients with high-risk stage II colon cancer and stage III CRC. Clinicians' and providers' decisions on ACT administration may not be fully guided by the risk of recurrence and 5-year survival benefits in stage II colon cancer. DISCLOSURES: This research was supported by the National Cancer Institute of the National Institutes of Health (NIH) (under R37-CA218413). The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH.
Collapse
Affiliation(s)
- Yilin Chen
- CHOICE Institute, School of Pharmacy, University of Washington, Seattle
| | - Veena Shankaran
- Hutchinson Institute for Cancer Outcomes Research, Fred Hutchinson Cancer Research Center, and Division of Medical Oncology, University of Washington, Seattle
| | - Erin E Hahn
- Department of Health Systems Sciences, Bernard J. Tyson School of Medicine, Kaiser Permanente, Pasadena, CA
- Department of Research and Evaluation, Kaiser Permanente, Pasadena, CA
| | - Eric C Haupt
- Department of Research and Evaluation, Kaiser Permanente, Pasadena, CA
| | - Aasthaa Bansal
- CHOICE Institute, School of Pharmacy, University of Washington, Seattle
| |
Collapse
|
4
|
Ortiz‐Ortiz KJ, Torres‐Cintrón CR, Suárez Ramos T, Castañeda‐Avila MA, Cotto Santana LA, Tortolero‐Luna G. Patterns of use of biological and genetic markers for chronic lymphocytic leukemia and acute myeloid leukemia in Puerto Rico. Cancer Med 2022; 12:6889-6901. [PMID: 36433636 PMCID: PMC10067077 DOI: 10.1002/cam4.5482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 10/20/2022] [Accepted: 11/13/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND The use of markers has stimulated the development of more appropriate targeted therapies for chronic lymphocytic leukemia (CLL) and acute myeloid leukemia (AML). We assessed the use and prevalence of biological and genetic markers of CLL and AML in the homogeneous Hispanic population of Puerto Rico. METHODS We used the Puerto Rico CLL/AML Population-Based Registry, which combines information from linked databases. Logistic regression models were used to examine factors associated with biological and genetic testing. RESULTS A total of 926 patients 18 years or older diagnosed with CLL (n = 518) and AML (n = 408) during 2011-2015 were included in this analysis. Cytogenetic testing (FISH) was reported for 441 (85.1%) of the CLL patients; of those, 24.0% had the presence of trisomy 12, 9.5% carried deletion 11q, 50.3% carried deletion 13q, and 6.3% carried deletion 17p. Regarding AML, patients with cytogenetics and molecular tests were considered to determine the risk category (254 patients), of which 39.8% showed poor or adverse risk. Older age and having more comorbidities among patients with CLL were associated with a lower likelihood of receiving a FISH test. CONCLUSIONS Although prognostic genetic testing is required for treatment decisions, the amount of testing in this Hispanic cohort is far from ideal. Furthermore, some tests were not homogeneously distributed in the population, which requires further exploration and monitoring. This study contributes to the field by informing the medical community about the use and prevalence of biological and genetic markers of CLL and AML. Similarly, it has the potential to improve the management of CLL and AML through benchmarking.
Collapse
Affiliation(s)
- Karen J. Ortiz‐Ortiz
- Division of Cancer Control and Population Sciences University of Puerto Rico Comprehensive Cancer Center San Juan Puerto Rico
- Puerto Rico Central Cancer Registry University of Puerto Rico, Comprehensive Cancer Center San Juan Puerto Rico
- Department of Health Services Administration, Graduate School of Public Health, Medical Sciences Campus University of Puerto Rico San Juan Puerto Rico
| | - Carlos R. Torres‐Cintrón
- Puerto Rico Central Cancer Registry University of Puerto Rico, Comprehensive Cancer Center San Juan Puerto Rico
| | - Tonatiuh Suárez Ramos
- Puerto Rico Central Cancer Registry University of Puerto Rico, Comprehensive Cancer Center San Juan Puerto Rico
| | - Maira A. Castañeda‐Avila
- Department of Population and Quantitative Health Sciences University of Massachusetts Chan Medical School Worcester Massachusetts USA
| | | | - Guillermo Tortolero‐Luna
- Division of Cancer Control and Population Sciences University of Puerto Rico Comprehensive Cancer Center San Juan Puerto Rico
- Puerto Rico Central Cancer Registry University of Puerto Rico, Comprehensive Cancer Center San Juan Puerto Rico
| |
Collapse
|
5
|
Castaneda-Avila MA, Suárez Ramos T, Torres-Cintrón CR, Cotto-Santana LA, Tortolero-Luna G, Ortiz-Ortiz KJ. Induction Therapy and Survival for Acute Myeloid Leukemia in Hispanic Adults from Puerto Rico. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2022; 22:e922-e930. [PMID: 35853812 DOI: 10.1016/j.clml.2022.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Acute myeloid leukemia (AML) is the most common type of leukemia in adults. There are no previous studies evaluating AML treatment patterns in Puerto Rico. We describe the first-line therapy patterns and survival of patients diagnosed with AML in Puerto Rico using the Puerto Rico Central Cancer Registry Health Insurance Linkage Database (2011-2015). METHODS We describe patient characteristics according to intensive, non-intensive, and non-treatment status. We used Cox proportional hazard models to evaluate the factors associated with the risk of death stratified by intensive and non-intensive therapy. For this study, 385 patients with AML were included. RESULTS The mean age was 67 years old and 50.1% were female. Nearly half of AML patients (46.8%) received intensive treatment, 23.6% received non-intensive treatment, and 26.2% did not receive treatment. The overall 3-year survival rate was 17.9%. Among those who received intensive therapy, the risk of death among females was lower than males (hazard ratio [HR]: 0.64, 95% confidence interval [CI]: 0.44-0.93). Patients 60 years or older who received intensive treatment had a higher risk of death than younger patients (HR: 1.67, 95% CI: 1.09-2.55). Patients with poor/adverse risk receiving intensive (HR: 3.43, 95% CI: 1.76-6.69) or non-intensive (HR: 4.32, 95% CI: 1.66-11.28) treatment had a higher risk of death than patients with a favorable risk category. CONCLUSION Our findings are the first step to monitor the quality of care of patients with AML in Puerto Rico, particularly related to the administration of appropriate induction therapies, which is one of the most important predictors of AML survival.
Collapse
Affiliation(s)
- Maira A Castaneda-Avila
- Department of Population and Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, MA
| | - Tonatiuh Suárez Ramos
- Puerto Rico Central Cancer Registry, University of Puerto Rico, Comprehensive Cancer Center, San Juan, Puerto Rico
| | - Carlos R Torres-Cintrón
- Puerto Rico Central Cancer Registry, University of Puerto Rico, Comprehensive Cancer Center, San Juan, Puerto Rico
| | | | - Guillermo Tortolero-Luna
- Puerto Rico Central Cancer Registry, University of Puerto Rico, Comprehensive Cancer Center, San Juan, Puerto Rico; Division of Cancer Control and Population Sciences, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico
| | - Karen J Ortiz-Ortiz
- Puerto Rico Central Cancer Registry, University of Puerto Rico, Comprehensive Cancer Center, San Juan, Puerto Rico; Division of Cancer Control and Population Sciences, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico; Department of Health Services Administration, Graduate School of Public Health, Medical Sciences Campus, University of Puerto Rico, San Juan, Puerto Rico.
| |
Collapse
|
6
|
Optimal Allocation of Chemotherapy Schemes for Metastatic Colon Cancer in Colombia. Value Health Reg Issues 2021; 26:105-112. [PMID: 34166882 DOI: 10.1016/j.vhri.2021.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 12/10/2020] [Accepted: 01/16/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVES This study aims to determine the optimal proportion for different chemotherapy schemes in patients with metastatic colorectal cancer who have undergone surgical resection in Colombia. METHODS A linear programming model was used to quantify the optimal proportion of the chemotherapy schemes that maximize quality-adjusted life-years (QALYs). The model was evaluated in 6 different scenarios using parametric and dynamic optimization with different budget restriction constraints. The results were compared to the current mixture of schemes used in our country. RESULTS The results show that 63%, 37%, and 0.8% of the population should receive the FOLFOXIRI scheme (fluorouracil + leucovorin + oxaliplatin + irinotecan), FOLFIRI (irinotecan + leucovorin + fluorouracil), and FOLFIRI plus cetuximab, respectively. With these proportions, 8734 QALYs and universal coverage of the population are obtained. In an optimistic scenario (high QALYs, low costs, and budget of $40 million), the entire population should receive the FOLFIRI scheme. A pessimistic scenario (low QALYs, high costs, and budget of $15 million) would benefit only 46% of the population with the fluorouracil plus leucovorin scheme. In the other 3 scenarios with higher budget constraints, 52%, 69%, and 86% of the population should receive FOLFIRI, respectively. Dynamic optimization revealed that FOLFIRI and FOLFOX (oxaliplatin + leucovorin + fluorouracil) schemes are more likely to generate higher QALYs with lower costs and a limited budget. CONCLUSIONS The current use of chemotherapy schemes is not optimal. An increasing proportion of FOLFIRI, FOLFOX, and FOLFOXIRI should be used more often as schemes to treat metastatic colorectal cancer in Colombia.
Collapse
|
7
|
Ortiz AP, Soto-Salgado M, Calo WA, Hull P, Fernández ME, Colon-López V, Tortolero-Luna G. Elimination of cervical cancer in U.S. Hispanic populations: Puerto Rico as a case study. Prev Med 2021; 144:106336. [PMID: 33678233 DOI: 10.1016/j.ypmed.2020.106336] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 11/10/2020] [Accepted: 11/15/2020] [Indexed: 12/15/2022]
Abstract
Cervical cancer remains a major burden for women around the world. In 2018, the World Health Organization called for the elimination of cervical cancer worldwide (<4 cases per 100,000 women-years), within the 21st century. In the U.S., despite great progress toward this goal, existing disparities among racial/ethnic groups in cervical cancer raise concerns about whether elimination can be achieved for all women. We describe: 1) disparities in cervical cancer among Hispanics in the U.S. and factors that contribute to their increased risk, 2) prevention and control efforts to increase equity in the elimination of cervical cancer in this population, and 3) cervical cancer control efforts in Puerto Rico (PR), a U.S. territory, as a case study for cervical cancer elimination among a minority and underserved Hispanic population. Hispanics have the highest incidence rates of cervical cancer among all racial/ethnic groups in the U.S. Despite being more likely to complete HPV vaccination series, lower cervical cancer screening and access to treatment may lead to a higher cervical cancer mortality in Hispanics compared to non-Hispanic White women. These disparities are influenced by multiple individual-, sociocultural-, and system-level factors. To achieve the goal of cervical cancer elimination in the U.S., systematic elimination plans that consider the needs of Hispanic populations should be included within the Comprehensive Cancer Control Plans of each state. Because PR has implemented coordinated efforts for the prevention and control of cervical cancer, it represents a notable case study for examining strategies that can lead to cervical cancer elimination among Hispanics.
Collapse
Affiliation(s)
- Ana Patricia Ortiz
- University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico, United States of America; Department of Biostatistics and Epidemiology, Graduate School of Public Health, Medical Sciences Campus, University of Puerto Rico, San Juan, Puerto Rico, United States of America.
| | - Marievelisse Soto-Salgado
- Department of Health Services Administration, Graduate School of Public Health, Medical Sciences Campus, University of Puerto Rico, San Juan, Puerto Rico, United States of America; Department of Biochemistry, School of Medicine, Medical Sciences Campus, University of Puerto Rico, San Juan, Puerto Rico, United States of America
| | - William A Calo
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA, United States of America
| | - Pamela Hull
- University of Kentucky Markey Cancer Center, United States of America; Department of Behavioral Science, University of Kentucky College of Medicine, United States of America
| | - María E Fernández
- Center for Health Promotion and Prevention Research, The University of Texas School of Public Health, Houston, TX, United States of America
| | - Vivian Colon-López
- University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico, United States of America; Department of Health Services Administration, Graduate School of Public Health, Medical Sciences Campus, University of Puerto Rico, San Juan, Puerto Rico, United States of America
| | - Guillermo Tortolero-Luna
- University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico, United States of America
| |
Collapse
|
8
|
Konradsen AA, Lund CM, Vistisen KK, Albieri V, Dalton SO, Nielsen DL. The influence of socioeconomic position on adjuvant treatment of stage III colon cancer: a systematic review and meta-analysis. Acta Oncol 2020; 59:1291-1299. [PMID: 32525420 DOI: 10.1080/0284186x.2020.1772501] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Patients with colon cancer (CC) with low socioeconomic position (SEP) have a worse survival than patients with high SEP. We investigated the association between different socioeconomic indicators and the steps in the treatment trajectory leading to initiation of adjuvant chemotherapy (ACT) for patients with stage III CC. MATERIALS AND METHODS A systematic review and meta-analyses were conducted in accordance with the MOOSE checklist. MEDLINE and EMBASE were searched for eligible studies. Meta-analyses were performed on the separate socioeconomic indicators with the random-effects model. The heterogeneity across studies was assessed by the Q and the I 2 statistic. RESULTS In total, 27 observational studies were included. SEP was measured by insurance, income, poverty, employment, education, or an index on an area or individual level. SEP, regardless of indicator, was negatively associated with the steps in the treatment trajectory leading to initiation of ACT among patients with resected stage III CC. The meta-analyses showed that patients with low SEP had a significantly lower odds of receiving ACT and increased odds of delayed treatment start, whereas SEP had no impact on the choice of therapy: combination or single-agent therapy. CONCLUSION SEP was associated with less initiation of and higher risk for delayed initiation of ACT. Our findings suggest there is a social disparity in receipt of ACT in patients with stage III CC.
Collapse
Affiliation(s)
- A. A. Konradsen
- Department of Oncology, Copenhagen University Hospital, Herlev and Gentofte, Denmark
| | - C. M. Lund
- Department of Medicine, Copenhagen University Hospital, Herlev and Gentofte, Denmark
- Copenage, Copenhagen Center for Clinical Age Research, University of Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, Copenhagen University, Denmark
| | - K. K. Vistisen
- Department of Oncology, Copenhagen University Hospital, Herlev and Gentofte, Denmark
| | - V. Albieri
- Statistics and Data Analysis Department, Danish Cancer Society, Research Center, Copenhagen, Denmark
| | - S. O. Dalton
- Department of Clinical Oncology & Palliative Services, Zealand University Hospital, Naestved, Denmark
- Suvivorship and Inequality in Cancer, Danish Cancer Society, Research Center, Copenhagen, Denmark
| | - D. L. Nielsen
- Department of Oncology, Copenhagen University Hospital, Herlev and Gentofte, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, Copenhagen University, Denmark
| |
Collapse
|
9
|
Chow Z, Gan T, Chen Q, Huang B, Schoenberg N, Dignan M, Evers BM, Bhakta AS. Nonadherence to Standard of Care for Locally Advanced Colon Cancer as a Contributory Factor for High Mortality Rates in Kentucky. J Am Coll Surg 2020; 230:428-439. [PMID: 32062006 DOI: 10.1016/j.jamcollsurg.2019.12.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 01/07/2023]
Abstract
BACKGROUND Kentucky has one of the highest mortality rates for colon cancer, despite dramatic improvements in screening. The National Comprehensive Cancer Network (NCCN) guidelines recommend operation and adjuvant chemotherapy for locally advanced (stage IIb/c and stage III) colon cancer (LACC). The purpose of this study was to determine the rate of nonadherence with current standard of care (SOC) and associated factors as possible contributors to mortality. METHODS The Kentucky Cancer Registry database linked with administrative health claims was queried for individuals (20 years and older) diagnosed with LACC from 2007 to 2012. Bivariate and logistic regression of nonadherence was performed. Survival analysis was performed with Cox regression and Kaplan-Meier plots. RESULTS A total of 1,404 patients with LACC were included. Approximately 42% of patients with LACC were noted to be nonadherent to SOC, with nearly all (95.7%) failing to receive adjuvant chemotherapy. After adjusting for all significant factors, we found the factors associated with nonadherence included the following: age older than 75 years, stage III colon cancer, high Charlson Comorbidity Index (3+), low poverty level, Medicaid coverage, and disability. Adherence to SOC is associated with a significant improvement in the 5-year survival rate compared with nonadherence (63.0% and 27.4%, respectively; p < 0.0001). CONCLUSIONS Our study identified multiple factors associated with the failure of patients with LACC to receive SOC, particularly adjuvant chemotherapy, suggesting the need to focus on improving adjuvant chemotherapy compliance in specific populations. Nonadherence to LACC SOC is likely a major contributor to the persistently high mortality rates in Kentucky.
Collapse
Affiliation(s)
- Zeta Chow
- Department of Surgery, University of Kentucky Medical Center, Lexington, KY; Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY
| | - Tong Gan
- Department of Surgery, University of Kentucky Medical Center, Lexington, KY; Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY
| | - Quan Chen
- Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY
| | - Bin Huang
- Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY
| | - Nancy Schoenberg
- Department of Behavioral Science, University of Kentucky Medical Center, Lexington, KY; Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY
| | - Mark Dignan
- Department of Internal Medicine, University of Kentucky Medical Center, Lexington, KY; Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY
| | - B Mark Evers
- Department of Surgery, University of Kentucky Medical Center, Lexington, KY; Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY
| | - Avinash S Bhakta
- Department of Surgery, University of Kentucky Medical Center, Lexington, KY; Markey Cancer Center, University of Kentucky Medical Center, Lexington, KY.
| |
Collapse
|