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Lennox L, Lambe K, Hindocha CN, Coronini-Cronberg S. What health inequalities exist in access to, outcomes from and experience of treatment for lung cancer? A scoping review. BMJ Open 2023; 13:e077610. [PMID: 37918927 PMCID: PMC10626811 DOI: 10.1136/bmjopen-2023-077610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023] Open
Abstract
OBJECTIVES Lung cancer (LC) continues to be the leading cause of cancer-related deaths and while there have been significant improvements in overall survival, this gain is not equally distributed. To address health inequalities (HIs), it is vital to identify whether and where they exist. This paper reviews existing literature on what HIs impact LC care and where these manifest on the care pathway. DESIGN A systematic scoping review based on Arksey and O'Malley's five-stage framework. DATA SOURCES Multiple databases (EMBASE, HMIC, Medline, PsycINFO, PubMed) were used to retrieve articles. ELIGIBILITY CRITERIA Search limits were set to retrieve articles published between January 2012 and April 2022. Papers examining LC along with domains of HI were included. Two authors screened papers and independently assessed full texts. DATA EXTRACTION AND SYNTHESIS HIs were categorised according to: (a) HI domains: Protected Characteristics (PC); Socioeconomic and Deprivation Factors (SDF); Geographical Region (GR); Vulnerable or Socially Excluded Groups (VSG); and (b) where on the LC pathway (access to, outcomes from, experience of care) inequalities manifest. Data were extracted by two authors and collated in a spreadsheet for structured analysis and interpretation. RESULTS 41 papers were included. The most studied domain was PC (32/41), followed by SDF (19/41), GR (18/41) and VSG (13/41). Most studies investigated differences in access (31/41) or outcomes (27/41), with few (4/41) exploring experience inequalities. Evidence showed race, rural residence and being part of a VSG impacted the access to LC diagnosis, treatment and supportive care. Additionally, rural residence, older age or male sex negatively impacted survival and mortality. The relationship between outcomes and other factors (eg, race, deprivation) showed mixed results. CONCLUSIONS Findings offer an opportunity to reflect on the understanding of HIs in LC care and provide a platform to consider targeted efforts to improve equity of access, outcomes and experience for patients.
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Affiliation(s)
- Laura Lennox
- Primary Care and Public Health, Imperial College London, London, UK
- NIHR Applied Research Collaboration Northwest London, London, UK
| | - Kate Lambe
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - Chandni N Hindocha
- Primary Care and Public Health, Imperial College London, London, UK
- NIHR Applied Research Collaboration Northwest London, London, UK
| | - Sophie Coronini-Cronberg
- Primary Care and Public Health, Imperial College London, London, UK
- NIHR Applied Research Collaboration Northwest London, London, UK
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
- West London NHS Trust, London, UK
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The Influence of Ethnicity on Survival from Malignant Primary Brain Tumours in England: A Population-Based Cohort Study. Cancers (Basel) 2023; 15:cancers15051464. [PMID: 36900254 PMCID: PMC10000771 DOI: 10.3390/cancers15051464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/15/2023] [Accepted: 02/20/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND In recent years, the completeness of ethnicity data in the English cancer registration data has greatly improved. Using these data, this study aims to estimate the influence of ethnicity on survival from primary malignant brain tumours. METHODS Demographic and clinical data on adult patients diagnosed with malignant primary brain tumour from 2012 to 2017 were obtained (n = 24,319). Univariate and multivariate Cox proportional hazards regression analyses were used to estimate hazard ratios (HR) for the survival of the ethnic groups up to one year following diagnosis. Logistic regressions were then used to estimate odds ratios (OR) for different ethnic groups of (1) being diagnosed with pathologically confirmed glioblastoma, (2) being diagnosed through a hospital stay that included an emergency admission, and (3) receiving optimal treatment. RESULTS After an adjustment for known prognostic factors and factors potentially affecting access to healthcare, patients with an Indian background (HR 0.84, 95% CI 0.72-0.98), Any Other White (HR 0.83, 95% CI 0.76-0.91), Other Ethnic Group (HR 0.70, 95% CI 0.62-0.79), and Unknown/Not Stated Ethnicity (HR 0.81, 95% CI 0.75-0.88) had better one-year survivals than the White British Group. Individuals with Unknown ethnicity are less likely be diagnosed with glioblastoma (OR 0.70, 95% CI 0.58-0.84) and less likely to be diagnosed through a hospital stay that included an emergency admission (OR 0.61, 95% CI 0.53-0.69). CONCLUSION The demonstrated ethnic variations associated with better brain tumour survival suggests the need to identify risk or protective factors that may underlie these differences in patient outcomes.
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Lim E, Harris RA, McKeon HE, Batchelor TJ, Dunning J, Shackcloth M, Anikin V, Naidu B, Belcher E, Loubani M, Zamvar V, Dabner L, Brush T, Stokes EA, Wordsworth S, Paramasivan S, Realpe A, Elliott D, Blazeby J, Rogers CA. Impact of video-assisted thoracoscopic lobectomy versus open lobectomy for lung cancer on recovery assessed using self-reported physical function: VIOLET RCT. Health Technol Assess 2022; 26:1-162. [PMID: 36524582 PMCID: PMC9791462 DOI: 10.3310/thbq1793] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Lung cancer is the leading cause of cancer death. Surgery remains the main method of managing early-stage disease. Minimal-access video-assisted thoracoscopic surgery results in less tissue trauma than open surgery; however, it is not known if it improves patient outcomes. OBJECTIVE To compare the clinical effectiveness and cost-effectiveness of video-assisted thoracoscopic surgery lobectomy with open surgery for the treatment of lung cancer. DESIGN, SETTING AND PARTICIPANTS A multicentre, superiority, parallel-group, randomised controlled trial with blinding of participants (until hospital discharge) and outcome assessors conducted in nine NHS hospitals. Adults referred for lung resection for known or suspected lung cancer, with disease suitable for both surgeries, were eligible. Participants were followed up for 1 year. INTERVENTIONS Participants were randomised 1 : 1 to video-assisted thoracoscopic surgery lobectomy or open surgery. Video-assisted thoracoscopic surgery used one to four keyhole incisions without rib spreading. Open surgery used a single incision with rib spreading, with or without rib resection. MAIN OUTCOME MEASURES The primary outcome was self-reported physical function (using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30) at 5 weeks. Secondary outcomes included upstaging to pathologic node stage 2 disease, time from surgery to hospital discharge, pain in the first 2 days, prolonged pain requiring analgesia at > 5 weeks, adverse health events, uptake of adjuvant treatment, overall and disease-free survival, quality of life (Quality of Life Questionnaire Core 30, Quality of Life Questionnaire Lung Cancer 13 and EQ-5D) at 2 and 5 weeks and 3, 6 and 12 months, and cost-effectiveness. RESULTS A total of 503 patients were randomised between July 2015 and February 2019 (video-assisted thoracoscopic surgery, n = 247; open surgery, n = 256). One participant withdrew before surgery. The mean age of patients was 69 years; 249 (49.5%) patients were men and 242 (48.1%) did not have a confirmed diagnosis. Lobectomy was performed in 453 of 502 (90.2%) participants and complete resection was achieved in 429 of 439 (97.7%) participants. Quality of Life Questionnaire Core 30 physical function was better in the video-assisted thoracoscopic surgery group than in the open-surgery group at 5 weeks (video-assisted thoracoscopic surgery, n = 247; open surgery, n = 255; mean difference 4.65, 95% confidence interval 1.69 to 7.61; p = 0.0089). Upstaging from clinical node stage 0 to pathologic node stage 1 and from clinical node stage 0 or 1 to pathologic node stage 2 was similar (p ≥ 0.50). Pain scores were similar on day 1, but lower in the video-assisted thoracoscopic surgery group on day 2 (mean difference -0.54, 95% confidence interval -0.99 to -0.09; p = 0.018). Analgesic consumption was 10% lower (95% CI -20% to 1%) and the median hospital stay was less (4 vs. 5 days, hazard ratio 1.34, 95% confidence interval 1.09, 1.65; p = 0.006) in the video-assisted thoracoscopic surgery group than in the open-surgery group. Prolonged pain was also less (relative risk 0.82, 95% confidence interval 0.72 to 0.94; p = 0.003). Time to uptake of adjuvant treatment, overall survival and progression-free survival were similar (p ≥ 0.28). Fewer participants in the video-assisted thoracoscopic surgery group than in the open-surgery group experienced complications before and after discharge from hospital (relative risk 0.74, 95% confidence interval 0.66 to 0.84; p < 0.001 and relative risk 0.81, 95% confidence interval 0.66 to 1.00; p = 0.053, respectively). Quality of life to 1 year was better across several domains in the video-assisted thoracoscopic surgery group than in the open-surgery group. The probability that video-assisted thoracoscopic surgery is cost-effective at a willingness-to-pay threshold of £20,000 per quality-adjusted life-year is 1. LIMITATIONS Ethnic minorities were under-represented compared with the UK population (< 5%), but the cohort reflected the lung cancer population. CONCLUSIONS Video-assisted thoracoscopic surgery lobectomy was associated with less pain, fewer complications and better quality of life without any compromise to oncologic outcome. Use of video-assisted thoracoscopic surgery is highly likely to be cost-effective for the NHS. FUTURE WORK Evaluation of the efficacy of video-assisted thoracoscopic surgery with robotic assistance, which is being offered in many hospitals. TRIAL REGISTRATION This trial is registered as ISRCTN13472721. FUNDING This project was funded by the National Institute for Health and Care Research ( NIHR ) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 26, No. 48. See the NIHR Journals Library website for further project information.
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Delon C, Brown KF, Payne NWS, Kotrotsios Y, Vernon S, Shelton J. Differences in cancer incidence by broad ethnic group in England, 2013-2017. Br J Cancer 2022; 126:1765-1773. [PMID: 35233092 PMCID: PMC9174248 DOI: 10.1038/s41416-022-01718-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 01/05/2022] [Accepted: 01/25/2022] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Cancer incidence variation between population groups can inform public health and cancer services. Previous studies have shown cancer incidence rates vary by ethnic group in England. Since their publication, the completeness of ethnicity recording in cancer data has improved, and relevant inequalities (e.g. risk factor prevalence and healthcare access) may have changed. METHODS Age-standardised incidence rates were calculated for Asian, Black, Mixed/Multiple and White ethnic groups in England in 2013-2017, using almost 3 million diagnoses across 31 cancer sites. Rate ratios were calculated with the White ethnic group as reference. Sensitivity analyses used imputed ethnicity for cases with missing data and perturbed population estimates. RESULTS Incidence rates for most cancer sites and ethnic group and sex combinations were lower in non-White minority ethnic groups compared with the corresponding White group, with particularly low rate ratios (below 0.5) for melanoma skin cancer and some smoking-related cancers (lung, bladder and oesophageal cancers). Exceptions included prostate cancer (2.1 times higher in males of Black ethnicity), myeloma (2.7-3.0 times higher in people of Black ethnicity), several gastrointestinal cancers (1.1-1.9 times higher in people of Black ethnicity, 1.4-2.2 times higher in people of Asian ethnicity), Hodgkin lymphoma (1.1 times higher in males of Asian ethnicity, 1.3 times higher in males of Black ethnicity) and thyroid cancers (1.4 times higher in people of Asian ethnicity, 1.2 times higher in people of Black ethnicity). Sensitivity analyses did not materially alter these results (rate ratios changed by a maximum of 12 percentage points, the direction and significance of results were unchanged in all but two cancer site/sex/ethnic group combinations). CONCLUSIONS People of non-White minority ethnicity in England generally have lower cancer risk than the White population, though there are a number of notable exceptions. These results should galvanise efforts to better understand the reasons for this variation, and the possible impact on cancer services, patient experiences and outcomes.
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Affiliation(s)
- Christine Delon
- Cancer Intelligence Team, Cancer Research UK, 2 Redman Place, London, E20 1JQ, UK.
| | - Katrina F Brown
- Cancer Intelligence Team, Cancer Research UK, 2 Redman Place, London, E20 1JQ, UK
| | - Nick W S Payne
- Cancer Intelligence Team, Cancer Research UK, 2 Redman Place, London, E20 1JQ, UK
| | - Yannis Kotrotsios
- Cancer Intelligence Team, Cancer Research UK, 2 Redman Place, London, E20 1JQ, UK
| | - Sally Vernon
- National Disease Registration Service, NHS Digital, 7 and 8 Wellington Place, Leeds, LS1 4AP, UK
| | - Jon Shelton
- Cancer Intelligence Team, Cancer Research UK, 2 Redman Place, London, E20 1JQ, UK
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Abraham S, Foreman N, Sidat Z, Sandhu P, Marrone D, Headley C, Akroyd C, Nicholson S, Brown K, Thomas A, Howells LM, Walter HS. Inequalities in cancer screening, prevention and service engagement between UK ethnic minority groups. BRITISH JOURNAL OF NURSING (MARK ALLEN PUBLISHING) 2022; 31:S14-S24. [PMID: 35648663 DOI: 10.12968/bjon.2022.31.10.s14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
More people in the UK are living with cancer than ever before. With an increasingly ethnically diverse population, greater emphasis must be placed on understanding factors influencing cancer outcomes. This review seeks to explore UK-specific variations in engagement with cancer services in minority ethnic groups and describe successful interventions. The authors wish to highlight that, despite improvement to engagement and education strategies, inequalities still persist and work to improve cancer outcomes across our communities still needs to be prioritised. There are many reasons why cancer healthcare inequities exist for minority communities, reported on a spectrum ranging from cultural beliefs and awareness, through to racism. Strategies that successfully enhanced engagement included language support; culturally-sensitive reminders; community-based health workers and targeted outreach. Focusing on the diverse city of Leicester the authors describe how healthcare providers, researchers and community champions have worked collectively, delivering targeted community-based strategies to improve awareness and access to cancer services.
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Affiliation(s)
- Shalin Abraham
- F2 Academic Foundation Doctor, Leicester Cancer Research Centre, University of Leicester, Leicester
| | - Nalini Foreman
- Quality Assistant, Leicester Cancer Research Centre, University of Leicester, Leicester
| | - Zahirah Sidat
- Senior Research Practitioner, Hope Clinical Trials Facility, University Hospitals of Leicester NHS Trust, Leicester
| | - Pavandeep Sandhu
- Research Technician, Leicester Cancer Research Centre, University of Leicester, Leicester
| | - Domenic Marrone
- Research Technician, Leicester Cancer Research Centre, University of Leicester, Leicester
| | - Catherine Headley
- Senior Cancer Services Manager, Leicester City Clinical Commissioning Group, Leicester
| | - Carol Akroyd
- Collaboration for Leadership in Applied Health Research and Care Equality and Diversity Theme Manager, Centre for Ethnic Health Research, University of Leicester, Leicester
| | - Sarah Nicholson
- Hope Clinical Trials Facility Manager/Cancer, Haematology, Urology, Gastroenterology, General Surgery Research Lead, Hope Clinical Trials Facility, University Hospitals of Leicester NHS Trust, Leicester
| | - Karen Brown
- Professor in Translational Cancer Research, Leicester Cancer Research Centre, University of Leicester, Leicester
| | - Anne Thomas
- Professor of Cancer Therapeutics, Leicester Cancer Research Centre, University of Leicester, Leicester
| | - Lynne M Howells
- Experimental Cancer Medicine Centre Translational Research Manager, Leicester Cancer Research Centre, University of Leicester, Leicester
| | - Harriet S Walter
- Associate Professor of Medical Oncology, Leicester Cancer Research Centre, University of Leicester, Leicester
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O'Dowd EL, Ten Haaf K, Kaur J, Duffy SW, Hamilton W, Hubbard RB, Field JK, Callister ME, Janes SM, de Koning HJ, Rawlinson J, Baldwin DR. Selection of eligible participants for screening for lung cancer using primary care data. Thorax 2021; 77:882-890. [PMID: 34716280 DOI: 10.1136/thoraxjnl-2021-217142] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 09/21/2021] [Indexed: 12/23/2022]
Abstract
Lung cancer screening is effective if offered to people at increased risk of the disease. Currently, direct contact with potential participants is required for evaluating risk. A way to reduce the number of ineligible people contacted might be to apply risk-prediction models directly to digital primary care data, but model performance in this setting is unknown. METHOD The Clinical Practice Research Datalink, a computerised, longitudinal primary care database, was used to evaluate the Liverpool Lung Project V.2 (LLPv2) and Prostate Lung Colorectal and Ovarian (modified 2012) (PLCOm2012) models. Lung cancer occurrence over 5-6 years was measured in ever-smokers aged 50-80 years and compared with 5-year (LLPv2) and 6-year (PLCOm2012) predicted risk. RESULTS Over 5 and 6 years, 7123 and 7876 lung cancers occurred, respectively, from a cohort of 842 109 ever-smokers. After recalibration, LLPV2 produced a c-statistic of 0.700 (0.694-0.710), but mean predicted risk was over-estimated (predicted: 4.61%, actual: 0.9%). PLCOm2012 showed similar performance (c-statistic: 0.679 (0.673-0.685), predicted risk: 3.76%. Applying risk-thresholds of 1% (LLPv2) and 0.15% (PLCOm2012), would avoid contacting 42.7% and 27.4% of ever-smokers who did not develop lung cancer for screening eligibility assessment, at the cost of missing 15.6% and 11.4% of lung cancers. CONCLUSION Risk-prediction models showed only moderate discrimination when applied to routinely collected primary care data, which may be explained by quality and completeness of data. However, they may substantially reduce the number of people for initial evaluation of screening eligibility, at the cost of missing some lung cancers. Further work is needed to establish whether newer models have improved performance in primary care data.
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Affiliation(s)
- Emma L O'Dowd
- Respiratory Medicine, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Kevin Ten Haaf
- Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jaspreet Kaur
- Department of Epidemiology, University of Nottingham School of Medicine, Nottingham, UK
| | - Stephen W Duffy
- Wolfson Institute of Preventive Medicine, Barts and London, London, UK
| | | | - Richard B Hubbard
- Department of Epidemiology, University of Nottingham School of Medicine, Nottingham, UK
| | - John K Field
- Department of Molecular and Clinical Cancer Medicine, Institute of Systems, University of Liverpool, Liverpool, UK
| | | | - Sam M Janes
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK
| | | | | | - David R Baldwin
- City Campus, Nottingham University Hospitals NHS Trust, Nottingham, UK
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Association of cancer screening and residing in a coal-polluted East Asian region with overall survival of lung cancer patients: a retrospective cohort study. Sci Rep 2020; 10:17432. [PMID: 33060705 PMCID: PMC7566617 DOI: 10.1038/s41598-020-74082-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 09/23/2020] [Indexed: 11/08/2022] Open
Abstract
Lung cancer is the leading cause of cancer death worldwide. The Xuanwei-Fuyuan (XF) region of Yunnan, China has a high incidence of lung cancer from coal-related pollution. Effort to raise public awareness screening for lung cancer has been ongoing. We retrospectively analyzed overall survival (OS) of lung cancer patients of a tertiary cancer center in Yunnan to investigate screening and regional residential status as predictive factors. Consecutive cases of newly diagnosed lung cancer were reviewed. The lung cancer cases diagnosed by screening were more likely to be early-staged and treated by surgery than those diagnosed not by screening. In patients diagnosed not by screening, XF residential status was a significant predictor of improved OS. Frailty model detected significant heterogeneity associated with region of residence in unscreened patients. Potential biases associated with screening were examined by Monte Carlo simulations and sensitivity analyses. Focused effort in cancer screening and increased public awareness of pollution-related lung cancer in XF might have led to early diagnosis and improved OS, and increased investment in health care resources in high risk areas may have produced additional unobserved factors that underlay the association of XF residential status with improved OS in patients diagnosed not by screening.
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Kim SJ, Ju JS, Park SS, Suh YA, Yoo HJ, Choi EK, Shin Y, Park YY. An RNA-binding-protein, NONO governs energy metabolism by regulating NAMPT in lung cancer. Biochem Biophys Res Commun 2020; 528:376-382. [PMID: 32087970 DOI: 10.1016/j.bbrc.2020.01.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/06/2020] [Indexed: 12/17/2022]
Abstract
The RNA binding proteins (RBPs) have multiple roles in human cancer. However, their molecular target and function have not been clearly identified. Our genomic analysis derived from patients reveals that NONO is a potential oncogenic gene in lung cancer. NONO is highly expressed in lung cancer tissues compared with normal tissues, and its expression has been correlated with the prognosis of lung cancer patients. We found that NONO significantly influences cancer cell proliferation in lung cancer. Gene expression profiles with NONO-depleted cells revealed that the sirtuin signaling pathway is highly correlated with NONO. Thus, NONO-silenced cells caused reduction of the TCA cycle and glycolysis metabolism. We identified that NONO regulated NAMPT, which is a well-known gene involved in sirtuin signaling, and NONO has a significant correlation with NAMPT in lung cancer patients. We propose that NONO modulates energy metabolism by direct interaction with NAMPT and suggest that a functional relationship between NONO and NAMPT contributes to lung cancer cell survival. Targeting the axis can be a promising approach for patient treatment in lung cancer.
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Affiliation(s)
- Seong-Jin Kim
- Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, South Korea; Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Jin-Sung Ju
- Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, South Korea; Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Seok Soon Park
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Young-Ah Suh
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Hyun Ju Yoo
- Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, South Korea; Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea
| | - Eun Kyung Choi
- Department of Radiation Oncology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Yong Shin
- Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, South Korea.
| | - Yun-Yong Park
- Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, South Korea; Asan Institute for Life Sciences, Asan Medical Center, Seoul, South Korea.
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Thøgersen H, Møller B, Robsahm TE, Babigumira R, Aaserud S, Larsen IK. Differences in cancer survival between immigrants in Norway and the host population. Int J Cancer 2018; 143:3097-3105. [PMID: 29987865 DOI: 10.1002/ijc.31729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/11/2018] [Accepted: 06/15/2018] [Indexed: 11/10/2022]
Abstract
Cancer survival is an important indicator for quality of cancer care. We sought to determine if there are differences in cancer survival between immigrants and the host population in Norway. We performed a nationwide registry-based study comprising subjects diagnosed with cancer between 1990 and 2014, and followed until the end of 2016. Survival was estimated for 13 cancer sites with cause-specific survival. Adjustments were made for common confounders (age, sex, year of diagnosis and place of residence) and defined mediators (stage at diagnosis, comorbidity and socioeconomic factors). A total of 500,255 subjects were available for analysis, of which 11,252 were Western and 8,701 non-Western immigrants. We did not find differences in cancer survival between Western immigrants and Norwegians, while non-Western immigrants, with some exceptions, had similar or better survival. Better lung cancer survival in non-Western immigrants than Norwegians was notable (hazard ratio (95% confidence interval): 0.78 (0.71-0.85)), and not explained by defined mediators. Immigrants from Eastern Europe and Balkan with melanoma (hazard ratio: 1.54 (1.12-2.12)) and prostate cancer (hazard ratio: 1.34 (1.08-1.67)), and possibly from sub-Saharan Africa with breast cancer (hazard ratio: 1.41 (0.94-2.12)) had worse survival than Norwegians. The results suggest that immigrants in Norway have good cancer survival relative to the host population. Poor survival in immigrants from Eastern Europe and Balkan with melanoma and prostate cancer, and sub-Saharan Africa with breast cancer might be a concern.
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Affiliation(s)
- Håvard Thøgersen
- Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway.,Faculty of Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Bjørn Møller
- Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway
| | - Trude Eid Robsahm
- Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway
| | - Ronnie Babigumira
- Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway
| | - Stein Aaserud
- Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway
| | - Inger Kristin Larsen
- Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway
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Møller H, Coupland VH, Tataru D, Peake MD, Mellemgaard A, Round T, Baldwin DR, Callister MEJ, Jakobsen E, Vedsted P, Sullivan R, Spicer J. Geographical variations in the use of cancer treatments are associated with survival of lung cancer patients. Thorax 2018; 73:530-537. [PMID: 29511056 PMCID: PMC5969334 DOI: 10.1136/thoraxjnl-2017-210710] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 10/30/2017] [Accepted: 12/04/2017] [Indexed: 12/25/2022]
Abstract
Introduction Lung cancer outcomes in England are inferior to comparable countries. Patient or disease characteristics, healthcare-seeking behaviour, diagnostic pathways, and oncology service provision may contribute. We aimed to quantify associations between geographic variations in treatment and survival of patients in England. Methods We retrieved detailed cancer registration data to analyse the variation in survival of 176,225 lung cancer patients, diagnosed 2010-2014. We used Kaplan-Meier analysis and Cox proportional hazards regression to investigate survival in the two-year period following diagnosis. Results Survival improved over the period studied. The use of active treatment varied between geographical areas, with inter-quintile ranges of 9%–17% for surgical resection, 4%–13% for radical radiotherapy, and 22%–35% for chemotherapy. At 2 years, there were 188 potentially avoidable deaths annually for surgical resection, and 373 for radical radiotherapy, if all treated proportions were the same as in the highest quintiles. At the 6 month time-point, 318 deaths per year could be postponed if chemotherapy use for all patients was as in the highest quintile. The results were robust to statistical adjustments for age, sex, socio-economic status, performance status and co-morbidity. Conclusion The extent of use of different treatment modalities varies between geographical areas in England. These variations are not attributable to measurable patient and tumour characteristics, and more likely reflect differences in clinical management between local multi-disciplinary teams. The data suggest improvement over time, but there is potential for further survival gains if the use of active treatments in all areas could be increased towards the highest current regional rates.
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Affiliation(s)
- Henrik Møller
- School of Cancer and Pharmaceutical Sciences, King's College London, London, UK.,Department of Public Health, Research Centre for Cancer Diagnosis in Primary Care (CaP), Research Unit for General Practice, Aarhus University, Aarhus, Denmark
| | - Victoria H Coupland
- National Cancer Registration and Analysis Service, Public Health England, London, UK
| | - Daniela Tataru
- National Cancer Registration and Analysis Service, Public Health England, London, UK
| | - Michael D Peake
- National Cancer Registration and Analysis Service, Public Health England, London, UK.,Department of Respiratory Medicine, University of Leicester, Glenfield Hospital, Leicester, UK
| | - Anders Mellemgaard
- Department of Oncology, Herlev Hospital, University of Copenhagen, Herlev, Denmark
| | - Thomas Round
- School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
| | - David R Baldwin
- Division of Respiratory Medicine, University of Nottingham, Nottingham City Hospital, Nottingham, UK
| | | | - Erik Jakobsen
- Department of Cardiothoracic Surgery, Odense University Hospital, Odense, Denmark
| | - Peter Vedsted
- Department of Public Health, Research Centre for Cancer Diagnosis in Primary Care (CaP), Research Unit for General Practice, Aarhus University, Aarhus, Denmark
| | - Richard Sullivan
- School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
| | - James Spicer
- School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
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Sheringham J, Sequeira R, Myles J, Hamilton W, McDonnell J, Offman J, Duffy S, Raine R. Variations in GPs' decisions to investigate suspected lung cancer: a factorial experiment using multimedia vignettes. BMJ Qual Saf 2017; 26:449-459. [PMID: 27651515 DOI: 10.1136/bmjqs-2016-005679] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 07/24/2016] [Accepted: 08/18/2016] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Lung cancer survival is low and comparatively poor in the UK. Patients with symptoms suggestive of lung cancer commonly consult primary care, but it is unclear how general practitioners (GPs) distinguish which patients require further investigation. This study examined how patients' clinical and sociodemographic characteristics influence GPs' decisions to initiate lung cancer investigations. METHODS A factorial experiment was conducted among a national sample of 227 English GPs using vignettes presented as simulated consultations. A multimedia-interactive website simulated key features of consultations using actors ('patients'). GP participants made management decisions online for six 'patients', whose sociodemographic characteristics systematically varied across three levels of cancer risk. In low-risk vignettes, investigation (ie, chest X-ray ordered, computerised tomography scan or respiratory consultant referral) was not indicated; in medium-risk vignettes, investigation could be appropriate; in high-risk vignettes, investigation was definitely indicated. Each 'patient' had two lung cancer-related symptoms: one volunteered and another elicited if GPs asked. Variations in investigation likelihood were examined using multilevel logistic regression. RESULTS GPs decided to investigate lung cancer in 74% (1000/1348) of vignettes. Investigation likelihood did not increase with cancer risk. Investigations were more likely when GPs requested information on symptoms that 'patients' had but did not volunteer (adjusted OR (AOR)=3.18; 95% CI 2.27 to 4.70). However, GPs omitted to seek this information in 42% (570/1348) of cases. GPs were less likely to investigate older than younger 'patients' (AOR=0.52; 95% CI 0.39 to 0.7) and black 'patients' than white (AOR=0.68; 95% CI 0.48 to 0.95). CONCLUSIONS GPs were not more likely to investigate 'patients' with high-risk than low-risk cancer symptoms. Furthermore, they did not investigate everyone with the same symptoms equally. Insufficient data gathering could be responsible for missed opportunities in diagnosis.
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Affiliation(s)
| | | | - Jonathan Myles
- Queen Mary University of London, Centre for Cancer Prevention, London, UK
| | - William Hamilton
- University of Exeter, Peninsula College of Medicine and Dentistry, Exeter, UK
| | - Joe McDonnell
- Department of Public Health, London Borough of Waltham Forest, London, UK
| | - Judith Offman
- Queen Mary University of London, Centre for Cancer Prevention, London, UK
| | - Stephen Duffy
- Queen Mary University of London, Centre for Cancer Prevention, London, UK
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12
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Zhou C, Qin Y, Xie Z, Zhang J, Yang M, Li S, Chen R. NPTX1 is a novel epigenetic regulation gene and associated with prognosis in lung cancer. Biochem Biophys Res Commun 2015; 458:381-6. [PMID: 25646694 DOI: 10.1016/j.bbrc.2015.01.124] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Accepted: 01/24/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND CpG island hypermethylation of gene promoters is a well-known mechanism of epigenetic regulation of tumor related-genes and is directly linked to lung carcinogenesis. Alterations in the pattern of methylation of the NPTX1 gene have not yet been studied in detail in human lung cancer. METHODS Methylation-specific PCR (MSP) and bisulfite sequencing PCR (BSP) were used to analyze promoter methylation status, and real-time quantitative reverse transcription-PCR (qRT-PCR) examined mRNA levels. Subsequently, we compared the methylation profile of NPTX1 in samples of neoplastic and non-neoplastic lung tissue taken from the same patients by using quantitative methylation specific PCR (QMSP). RESULTS CpG island hypermethylation in promoter of NPTX1 was confirmed in lung cancer cell lines. A significant increase in NPTX1 methylation was identified in lung cancer specimens compared to adjacent noncancerous tissues and that it was negatively correlated with its mRNA expression. The overall survival time among patients carrying methylated NPTX1 tumors was significantly shorter as compared to those with unmethylated NPTX1 tumors (P = 0.011). Moreover, methylation of NPTX1 gene was found to be an independent prognostic factor for poor overall survival based on multivariate analysis models (p = 0.021), as was age ≥60 years old (p = 0.012) and TNM stage (p < 0.001). CONCLUSIONS These results suggest that NPTX1 hypermethylation and consequent mRNA changes might be an important molecular mechanism in lung cancer. Epigenetic alterations in NPTX1 may serve as potential diagnostic and prognostic biomarkers in lung cancer.
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Affiliation(s)
- Chengzhi Zhou
- Department of Medicine, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Yinyin Qin
- Department of Medicine, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Zhanhong Xie
- Department of Medicine, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Jiexia Zhang
- Department of Medicine, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Mingou Yang
- Department of Medicine, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Shiyue Li
- Department of Medicine, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China.
| | - Rongchang Chen
- Department of Medicine, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China.
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13
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The survival of patients with high grade glioma from different ethnic groups in South East England. J Neurooncol 2014; 120:531-6. [PMID: 25154322 DOI: 10.1007/s11060-014-1582-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 08/06/2014] [Indexed: 01/09/2023]
Abstract
Studies in the United States (US) have reported varying treatment and survival for patients with high grade glioma from different ethnic groups. This study investigates for the first time whether differences also exist in the United Kingdom (UK). This population-based cohort study used cancer registration data for 4,845 patients diagnosed in South East England between 2000 and 2009. Linked self-assigned ethnicity data within Hospital Episode Statistics were used to define White, Indian, Pakistani, Bangladeshi, Black Caribbean, Black African, Other and Not known groups. Logistic regression was used to generate odds ratios for a record of receipt of treatment (surgery, radiotherapy and chemotherapy), adjusting for sex, age, morphology, socioeconomic deprivation and comorbidity in each ethnic group. Hazard ratios were generated using Cox regression, adjusting for sex, age, morphology, socioeconomic deprivation, comorbidity and treatment. The overall one-year survival was 28.4 %. Ethnicity data was available for 3,793 (78 %) patients. Receipt of treatment was generally similar between different ethnic groups after adjustment for sex, age, morphology, socioeconomic deprivation and comorbidity. After adjustment for potential confounders, the Indian (HR 0.72, p = 0.037) and Other groups (HR 0.76, p = 0.003) had better survival, while the Not known group (HR 1.34, p < 0.0001) had worse survival than the White group. Patients from UK Indian groups have better survival than White patients while those from Black ethnic groups appear to have similar survival to White patients. These findings suggest the need to investigate possible contributing factors including the completeness of follow-up, clinical performance status and tumour biology.
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14
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Conway AM, Clamp AR, Hasan J, Goonetilleke D, Shore K, Wong LMJ, Wong J, Jayson G. Accessing cancer services in North West England: the Chinese population. Eur J Cancer Care (Engl) 2014; 23:570-81. [PMID: 24393098 DOI: 10.1111/ecc.12171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2013] [Indexed: 11/27/2022]
Abstract
Relatively few Chinese patients access tertiary cancer services in North West England. We investigated the reasons behind this using a culturally sensitive questionnaire. The questionnaire, completed by 214 Chinese people in English, Cantonese or Mandarin, evaluated the Chinese population's access and satisfaction with primary care, understanding of cancer and awareness of local cancer services. Ninety-five per cent of respondents were registered with a general practitioner (GP) and 75% had accessed primary care in the last year. Satisfaction with GP consultations was high but a third of respondents reported a lack of confidence in local National Health Service (NHS) services. Only 57% of eligible women had attended cervical screening programmes. The overall understanding of the causes and treatment of cancer and cancer services in the North West was poor. Despite registration with primary healthcare, the Chinese population under-utilise cancer prevention programmes and tertiary cancer services because of a lack of awareness and understanding of cancer services in the North West. A significant proportion of the population is dissatisfied with the perceived slow service and lack confidence in services, with 41% considering using healthcare abroad. These data highlight the critical need to engage with, educate and support the Chinese population if they are to access NHS cancer services.
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Affiliation(s)
- A M Conway
- University Hospital of South Manchester, Manchester
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15
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Bediaga NG, Davies MPA, Acha-Sagredo A, Hyde R, Raji OY, Page R, Walshaw M, Gosney J, Alfirevic A, Field JK, Liloglou T. A microRNA-based prediction algorithm for diagnosis of non-small lung cell carcinoma in minimal biopsy material. Br J Cancer 2013; 109:2404-11. [PMID: 24113142 PMCID: PMC3817343 DOI: 10.1038/bjc.2013.623] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Revised: 09/12/2013] [Accepted: 09/18/2013] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Diagnosis is jeopardised when limited biopsy material is available or histological quality compromised. Here we developed and validated a prediction algorithm based on microRNA (miRNA) expression that can assist clinical diagnosis of lung cancer in minimal biopsy material to improve clinical management. METHODS Discovery utilised Taqman Low Density Arrays (754 miRNAs) in 20 non-small cell lung cancer (NSCLC) tumour/normal pairs. In an independent set of 40 NSCLC patients, 28 miRNA targets were validated using qRT-PCR. A prediction algorithm based on eight miRNA targets was validated blindly in a third independent set of 47 NSCLC patients. The panel was also tested in formalin-fixed paraffin-embedded (FFPE) specimens from 20 NSCLC patients. The genomic methylation status of highly deregulated miRNAs was investigated by pyrosequencing. RESULTS In the final, frozen validation set the panel had very high sensitivity (97.5%), specificity (96.3%) and ROC-AUC (0.99, P=10(-15)). The panel provided 100% sensitivity and 95% specificity in FFPE tissue (ROC-AUC=0.97 (P=10(-6))). DNA methylation abnormalities contribute little to the deregulation of the miRNAs tested. CONCLUSION The developed prediction algorithm is a valuable potential biomarker for assisting lung cancer diagnosis in minimal biopsy material. A prospective validation is required to measure the enhancement of diagnostic accuracy of our current clinical practice.
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Affiliation(s)
- N G Bediaga
- Roy Castle Lung Cancer Research programme, Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
- BIOMICs Research Group, University of the Basque Country, Vitoria, Spain
| | - M P A Davies
- Roy Castle Lung Cancer Research programme, Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - A Acha-Sagredo
- Roy Castle Lung Cancer Research programme, Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
- Oral Medicine and Pathology, Department of Stomatology II, UFI 11/25, University of the Basque Country, Leioa, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - R Hyde
- Roy Castle Lung Cancer Research programme, Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - O Y Raji
- Roy Castle Lung Cancer Research programme, Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - R Page
- Department of Thoracic Surgery, Liverpool Heart and Chest Hospital, Liverpool, UK
| | - M Walshaw
- Department of Respiratory Medicine, Liverpool Heart and Chest Hospital, Liverpool, UK
| | - J Gosney
- Department of Pathology, Royal Liverpool and Broadgreen University Hospital Trust, Liverpool, UK
| | - A Alfirevic
- Department of Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - J K Field
- Roy Castle Lung Cancer Research programme, Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - T Liloglou
- Roy Castle Lung Cancer Research programme, Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
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Mengxi D, Qian W, Nan W, Xiaoguang X, Shijun L. Effect of DNA methylation inhibitor on RASSF1A genes expression in non-small cell lung cancer cell line A549 and A549DDP. Cancer Cell Int 2013; 13:91. [PMID: 24011511 PMCID: PMC3846638 DOI: 10.1186/1475-2867-13-91] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 09/03/2013] [Indexed: 12/16/2022] Open
Abstract
Background Ras association domain family 1A gene (RASSFlA) is a candidate suppressor gene, Lack of RASSF1A expression was found in lung cancer. High DNA methylation at the promoter region is the main reason for inactivating RASSF1A transcription. Methods In this study, we examined RASSF1A’s methylation status and its mRNA expression level between non-small cell lung cancer cell line A549 and anti-Cisplatin cell strain A549DDP, Furthermore, methylation of A549DDP was reversed by treatment of 5-Aza-2′ - deoxycytidine (5-Aza-cdR),a DNA methyltransferase inhibitor. Results We found that RASSF1A’s methylation status and its mRNA expression were obvious differences between A549 and A549DDP. 5-Aza-CdR treatment remarkablly reduced cell vability of A549DDP. Moreover, 5-Aza-CdR treatment induced A549DDP cell apoptosis in a dose dependent manner with declining cell percentage in S and G2/M stage, and increasing proportion in G0/G1 stage. Cell motility was blocked in G0/G1 stage. All of A549DDP cells showed unmethylated expression, its high methylation status was reversed in a dose-dependent manner within a certain range. Conclusions The abnormal gene methylation status of RASSF1A is a molecular biomarker in lung cancer diagnosis, treatment and prognosis.
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Affiliation(s)
- Duan Mengxi
- Department of Clinical Laboratory, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China.
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17
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Nikolaidis G, Raji OY, Markopoulou S, Gosney JR, Bryan J, Warburton C, Walshaw M, Sheard J, Field JK, Liloglou T. DNA methylation biomarkers offer improved diagnostic efficiency in lung cancer. Cancer Res 2012; 72:5692-701. [PMID: 22962272 DOI: 10.1158/0008-5472.can-12-2309] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The exceptional high mortality of lung cancer can be instigated to a high degree by late diagnosis. Despite the plethora of studies on potential molecular biomarkers for lung cancer diagnosis, very few have reached clinical implementation. In this study, we developed a panel of DNA methylation biomarkers and validated their diagnostic efficiency in bronchial washings from a large retrospective cohort. Candidate targets from previous high-throughput approaches were examined by pyrosequencing in an independent set of 48 lung tumor/normal paired. Ten promoters were selected and quantitative methylation-specific PCR (qMSP) assays were developed and used to screen 655 bronchial washings from the Liverpool Lung Project (LLP) subjects divided into training (194 cases and 214 controls) and validation (139 cases and 109 controls) sets. Three statistical models were used to select the optimal panel of markers and to evaluate the performance of the discriminatory algorithms. The final logit regression model incorporated hypermethylation at p16, TERT, WT1, and RASSF1. The performance of this 4-gene methylation signature in the validation set showed 82% sensitivity and 91% specificity. In comparison, cytology alone in this set provided 43% sensitivity at 100% specificity. The diagnostic efficiency of the panel did not show any biases with age, gender, smoking, and the presence of a nonlung neoplasm. However, sensitivity was predictably higher in central (squamous and small cell) than peripheral (adenocarcinomas) tumors, as well as in stage 2 or greater tumors. These findings clearly show the impact of DNA methylation-based assays in the diagnosis of cytologically occult lung neoplasms. A prospective trial is currently imminent in the LLP study to provide data on the enhancement of diagnostic accuracy in a clinical setting, including by additional markers.
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Affiliation(s)
- Georgios Nikolaidis
- Department of Molecular & Clinical Cancer Medicine, University of Liverpool, Liverpool, United Kingdom
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18
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Iqbal G, Johnson MRD, Szczepura A, Wilson S, Gumber A, Dunn JA. UK ethnicity data collection for healthcare statistics: the South Asian perspective. BMC Public Health 2012; 12:243. [PMID: 22452827 PMCID: PMC3339513 DOI: 10.1186/1471-2458-12-243] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Accepted: 03/27/2012] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Ethnicity data collection has been proven to be important in health care but despite government initiatives remains incomplete and mostly un-validated in the UK. Accurate self-reported ethnicity data would enable experts to assess inequalities in health and access to services and help to ensure resources are targeted appropriately. The aim of this paper is to explore the reasons for the observed gap in ethnicity data by examining the perceptions and experiences of healthy South Asian volunteers. South Asians are the largest ethnic minority group accounting for 50% of all ethnic minorities in the UK 2001 census. METHODS Five focus groups, conducted by trained facilitators in the native language of each group, recruited 36 South Asian volunteers from local community centres and places of worship. The topic guide focused on five key areas:1) general opinions on the collection of ethnicity, 2) experiences of providing ethnicity information, 3) categories used in practice, 4) opinions of other indicators of ethnicity e.g. language, religion and culture and 5) views on how should this information be collected. The translated transcripts were analysed using a qualitative thematic approach. RESULTS The findings of this Cancer Research UK commissioned study revealed that participants felt that accurate recording of ethnicity data was important in healthcare with several stating the increased prevalence of certain diseases in minority ethnic groups as an appropriate justification to improve this data. The overwhelming majority raised no objections to providing this data when the purpose of data collection is fully explained. CONCLUSIONS This study confirmed that the collection of patients' ethnicity data is deemed important by potential patients but there remains uncertainty and unease as to how the data may be used. A common theme running through the focus groups was the willingness to provide these data, strongly accompanied by a desire to have more information with regard to its use.
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Affiliation(s)
- Gulnaz Iqbal
- Warwick Clinical Trials Unit, Division of Health Sciences, Warwick Medical School, The University of Warwick, Coventry, UK
| | - Mark RD Johnson
- Centre for Evidence in Ethnicity Health and Diversity, University of Warwick, Coventry, UK
- Mary Seacole Research Centre, De Montfort University, Leicester, UK
| | - Ala Szczepura
- Centre for Evidence in Ethnicity Health and Diversity, University of Warwick, Coventry, UK
| | - Sue Wilson
- Primary Care Clinical Sciences, University of Birmingham, Birmingham, UK
| | - Anil Gumber
- Centre for Evidence in Ethnicity Health and Diversity, University of Warwick, Coventry, UK
| | - Janet A Dunn
- Warwick Clinical Trials Unit, Division of Health Sciences, Warwick Medical School, The University of Warwick, Coventry, UK
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Berglund A, Lambe M, Lüchtenborg M, Linklater K, Peake MD, Holmberg L, Møller H. Social differences in lung cancer management and survival in South East England: a cohort study. BMJ Open 2012; 2:bmjopen-2012-001048. [PMID: 22637374 PMCID: PMC3367157 DOI: 10.1136/bmjopen-2012-001048] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE To examine possible social variations in lung cancer survival and assess if any such gradients can be attributed to social differences in comorbidity, stage at diagnosis or treatment. DESIGN Population-based cohort identified in the Thames Cancer Registry. SETTING South East England. PARTICIPANTS 15 582 lung cancer patients diagnosed between 2006 and 2008. MAIN OUTCOME MEASURES Stage at diagnosis, surgery, radiotherapy, chemotherapy and survival. RESULTS The likelihood of being diagnosed as having early-stage disease did not vary by socioeconomic quintiles (p=0.58). In early-stage non-small-cell lung cancer, the likelihood of undergoing surgery was lowest in the most deprived group. There were no socioeconomic differences in the likelihood of receiving radiotherapy in stage III disease, while in advanced disease and in small-cell lung cancer, receipt of chemotherapy differed over socioeconomic quintiles (p<0.01). In early-stage disease and following adjustment for confounders, the HR between the most deprived and the most affluent group was 1.24 (95% CI 0.98 to 1.56). Corresponding estimates in stage III and advanced disease or small-cell lung cancer were 1.16 (95% CI 1.01 to 1.34) and 1.12 (95% CI 1.05 to 1.20), respectively. In early-stage disease, the crude HR between the most deprived and the most affluent group was approximately 1.4 and constant through follow-up, while in patients with advanced disease or small-cell lung cancer, no difference was detectable after 3 months. CONCLUSION We observed socioeconomic variations in management and survival in patients diagnosed as having lung cancer in South East England between 2006 and 2008, differences which could not fully be explained by social differences in stage at diagnosis, co-morbidity and treatment. The survival observed in the most affluent group should set the target for what is achievable for all lung cancer patients, managed in the same healthcare system.
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Affiliation(s)
- Anders Berglund
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Regional Cancer Centre of Central Sweden, University Hospital, Uppsala, Sweden
| | - Mats Lambe
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Regional Cancer Centre of Central Sweden, University Hospital, Uppsala, Sweden
| | - Margreet Lüchtenborg
- King's College London, School of Medicine, Division of Cancer Studies, Thames Cancer Registry, London, UK
| | - Karen Linklater
- King's College London, School of Medicine, Division of Cancer Studies, Thames Cancer Registry, London, UK
| | - Michael D Peake
- Department of Respiratory Medicine, Glenfield Hospital, Leicester, UK
- National Cancer Intelligence Network, London, UK
| | - Lars Holmberg
- Regional Cancer Centre of Central Sweden, University Hospital, Uppsala, Sweden
- King's College London, School of Medicine, Division of Cancer Studies, Thames Cancer Registry, London, UK
| | - Henrik Møller
- King's College London, School of Medicine, Division of Cancer Studies, Thames Cancer Registry, London, UK
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Bhopal RS, Bansal N, Steiner M, Brewster DH. Does the 'Scottish effect' apply to all ethnic groups? All-cancer, lung, colorectal, breast and prostate cancer in the Scottish Health and Ethnicity Linkage Cohort Study. BMJ Open 2012; 2:bmjopen-2012-001957. [PMID: 23012329 PMCID: PMC3467629 DOI: 10.1136/bmjopen-2012-001957] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Although ethnic group variations in cancer exist, no multiethnic, population-based, longitudinal studies are available in Europe. Our objectives were to examine ethnic variation in all-cancer, and lung, colorectal, breast and prostate cancers. DESIGN, SETTING, POPULATION, MEASURES AND ANALYSIS: This retrospective cohort study of 4.65 million people linked the 2001 Scottish Census (providing ethnic group) to cancer databases. With the White Scottish population as reference (value 100), directly age standardised rates and ratios (DASR and DASRR), and risk ratios, by sex and ethnic group with 95% CI were calculated for first cancers. In the results below, 95% CI around the DASRR excludes 100. Eight indicators of socio-economic position were assessed as potential confounders across all groups. RESULTS For all cancers the White Scottish population (100) had the highest DASRRs, Indians the lowest (men 45.9 and women 41.2) and White British (men 87.6 and women 87.3) and other groups were intermediate (eg, Chinese men 57.6). For lung cancer the DASRRs for Pakistani men (45.0), and women (53.5), were low and for any mixed background men high (174.5). For colorectal cancer the DASRRs were lowest in Pakistanis (men 32.9 and women 68.9), White British (men 82.4 and women 83.7), other White (men 77.2 and women 74.9) and Chinese men (42.6). Breast cancer in women was low in Pakistanis (62.2), Chinese (63.0) and White Irish (84.0). Prostate cancer was lowest in Pakistanis (38.7), Indian (62.6) and White Irish (85.4). No socio-economic indicator was a valid confounding variable across ethnic groups. CONCLUSIONS The 'Scottish effect' does not apply across ethnic groups for cancer. The findings have implications for clinical care, prevention and screening, for example, responding appropriately to the known low uptake among South Asian populations of bowel screening might benefit from modelling of cost-effectiveness of screening, given comparatively low cancer rates.
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Affiliation(s)
- Raj S Bhopal
- Edinburgh Ethnicity and Health Research Group, Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | - Narinder Bansal
- Edinburgh Ethnicity and Health Research Group, Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
| | - Markus Steiner
- Edinburgh Ethnicity and Health Research Group, Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
- Environmental & Occupational Medicine, Section of Population Health, University of Aberdeen, Aberdeen, UK
| | - David H Brewster
- Edinburgh Ethnicity and Health Research Group, Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK
- Information Services Division, NHS Scotland National Services, Edinburgh, UK
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