Παρασκευή 11 Δεκεμβρίου 2015

Prognostic value of health-related quality of life for overall survival in elderly non-small-cell lung cancer patients

Publication date: January 2016
Source:European Journal of Cancer, Volume 52
Author(s): Frédéric Fiteni, Dewi Vernerey, Franck Bonnetain, Fabien Vaylet, Hélène Sennélart, Jean Trédaniel, Denis Moro-Sibilot, Dominique Herman, Hélène Laizé, Philippe Masson, Marc Derollez, Christelle Clément-Duchêne, Bernard Milleron, Franck Morin, Gérard Zalcman, Elisabeth Quoix, Virginie Westeel
BackgroundWe investigated whether the health-related quality of life (HRQoL) score is a prognostic factor for overall survival (OS) in elderly patients with advanced non-small-cell lung cancer (NSCLC).MethodsWe included 451 NSCLC patients aged 70–89 years enrolled in the Intergroupe Francophone de Cancérologie Thoracique 0501 trial, using scores of the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 at baseline to investigate the prognostic value of HRQoL for OS, in addition to conventional factors. Cox regression model was used for both univariate and multivariate analyses of OS.ResultsGlobal health status (GH) dimension score at baseline was associated with favourable OS when adjusted for clinical, functional, and histological factors (hazard ratio [HR]: 0.986; 95% confidence interval [CI]: 0.980–0.992).We distinguished three groups according to GH score: high (GH <46), intermediate (46 ≤GH ≤67), and low (GH >67) mortality risk. The median OS values were 14.5, 8.2, and 5.3 months in the low-, intermediate-, and high-risk categories, respectively (log-rank P <0.0001).In the high-risk group, doublet chemotherapy was not associated with favourable OS (HR: 0.70; 95% CI: 0.49–1.003; P=0.052), whereas in the intermediate- and low-risk groups, doublet chemotherapy was associated with favourable OS (HR: 0.72; 95% CI: 0.54–0.96; P=0.023 and HR: 0.50; 95% CI: 0.30–0.84; P=0.0089, respectively).ConclusionThis study supports the additional prognostic value of HRQoL data at diagnosis to identify vulnerable subpopulations in elderly NSCLC patients. HRQoL could thus be valuable in selecting patients who will benefit from doublet chemotherapy.



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Observer variability in RECIST-based tumour burden measurements: a meta-analysis

Publication date: January 2016
Source:European Journal of Cancer, Volume 53
Author(s): Soon Ho Yoon, Kyung Won Kim, Jin Mo Goo, Dong-Wan Kim, Seokyung Hahn
BackgroundResponse Evaluation Criteria in Solid Tumours (RECIST)-based tumour burden measurements involve observer variability, the extent of which ought to be determined.MethodsA literature search identified studies on observer variability during manual measurements of tumour burdens via computed tomography according to the RECIST guideline. The 95% limit of agreement (LOA) values of relative measurement difference (RMD) were pooled using a random-effects model.ResultsTwelve studies were included. Pooled 95% LOAs of RMD in measuring unidimensional longest diameters of single lesions ranged from −22.1% (95% confidence interval [CI], −30.3% to −14.0%) to 25.4% (95% CI, 17.2% to 33.5%) between observers and −17.8% (95% CI, −23.6% to −11.9%) to 16.1% (95% CI, 10.1% to 21.8%) for a single observer. Pooled 95% LOAs of RMD in measuring the sum of multiple lesions ranged from −19.2% (95% CI, −23.7% to −14.9%) to 19.5% (95% CI, 15.2% to 23.9%) between observers, and −9.8% (95% CI, −19.0% to −0.3%) to 13.1% (95% CI, 3.6% to 22.6%) for a single observer. Pooled 95% LOA of RMD in calculating the interval change of tumour burden with a single lesion ranged from −31.3% (95% CI, −46.0% to −16.5%) to 30.3% (95% CI, 15.3% to 44.8%) between observers. Studies on calculating the interval change of tumour burden for a single observer or with multiple lesions were lacking.ConclusionInterobserver RMD in measuring single tumour burden and calculating its interval change may exceed the 20% cut-off for progression. Variability decreased when tumour burden was measured by a single observer or assessed by the sum of multiple lesions.



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Survival impact of postoperative body mass index in gastric cancer patients undergoing gastrectomy

Publication date: January 2016
Source:European Journal of Cancer, Volume 52
Author(s): Han Hee Lee, Jae Myung Park, Kyo Young Song, Myung-Gyu Choi, Cho Hyun Park
BackgroundThe relationship between preoperative body mass index (BMI) and the survival of postoperative gastric cancer patients is not clear. Furthermore, the survival impact with postoperative BMI is not known, even though weight loss is inevitable after gastrectomy.MethodsPatients who underwent gastrectomy for gastric cancer between 2000 and 2008 were included in the study (n = 1909). Patients were divided into three groups based on their BMIs: low (<18.5 kg/m2), normal (18.5–24.9 kg/m2), and high BMI (≥25.0 kg/m2). Patient survival was compared according to BMI at two time points: baseline and 1 year after surgery.ResultsRegarding BMI 1 year after surgery, overall survival, disease-specific survival, and recurrence-free survival were longer in the high BMI group than the low and normal BMI groups. In a Cox proportional hazards model, adjusting for the patient's age, sex, type of surgery, tumour stage, histology, curative resection, and BMI at baseline, a high BMI 1 year after surgery was associated with lower overall mortality compared to normal BMI (hazard ratio 0.51; 95% confidence interval, 0.26–0.98). However, BMI at baseline was not an independent prognostic factor.ConclusionBMI 1 year after surgery significantly predicted the long-term survival of patients with gastric cancer compared with the preoperative BMI.



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Two cases of immune thrombocytopenia associated with pembrolizumab

Publication date: Available online 10 December 2015
Source:European Journal of Cancer
Author(s): Audrey Le Roy, Emmanuelle Kempf, Felix Ackermann, Emilie Routier, Caroline Robert, Anthony Turpin, Aurélien Marabelle, Christine Mateus, Jean-Marie Michot, Olivier Lambotte




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Perspectives of Low-Income African-American Women Non-adherent to Mammography Screening: the Importance of Information, Behavioral Skills, and Motivation

Abstract

Although information-motivation-behavioral skills (IMB) adherence model has been successfully used in many illness domains and with other populations, it has not been used in understanding mammogram screening among low-income African-American women. Thus, a qualitative examination is needed to theoretically and collectively understand the barriers to screening, given the disparities in breast cancer mortality rates among this population. Semi-structured telephone interviews were conducted with 28 low-income uninsured and underinsured African-American women, 40 to 70 years, who had not had a mammogram within the past 12 months. Women were recruited from 21 hair and nail salons and Laundromats within the five North St. Louis city zip codes with the highest breast cancer mortality rates. Transcripts were analyzed and rooted in grounded theory. This study found that the individual relevancy of information, behavioral skills—both procedural and systematic—and motivation seemed to affect screening adherence; (the results suggest the importance of reordering traditional IMB components into the following sequential order: information, behavioral skills, and motivation (IBM)). Future analyses should include a larger, more representative sample of unscreened women, in which quantitative statistical analyses could be conducted to assist in strengthening assertions about information, behavioral skills, and motivational aspects and their relationship to screening.



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Oral Cancer Knowledge and Diagnostic Ability Among Dental Students

Abstract

The purpose of this study is to examine factors that influence the diagnostic ability of dental students with regards to oral cancer and oral potentially malignant disorders. Dental students at different levels of study were directly interviewed to examine their oral cancer knowledge and diagnostic ability using a validated and pre-tested survey instrument containing validated clinical images of oral cancer and oral potentially malignant disorders. An oral cancer knowledge scale (0 to 31) was generated from correct responses on oral cancer general knowledge, and a diagnostic ability scale (0 to 100) was generated from correct selections of suspicious oral lesions. Knowledge scores ranged from 0 to 27 (mean 10.1 ± 6.0); mean knowledge scores increased with year of study; 5th year students had the highest mean knowledge score (19.1 ± 4.0), while 1st year students had the lowest (5.6 ± 3.5). Diagnostic ability scores increased with year of study and ranged from 0 to 88.5 % (mean 41.8 % ± 15.6). The ability to recognize suspicious oral lesions was significantly correlated with knowledge about oral cancer and oral potentially malignant disorders (r = 0.28; P < 0.001). There is a need to improve oral cancer education curricula; increasing students' contact with patients who have oral lesions including oral cancer will help to improve their future diagnostic ability and early detection practices.



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Τετάρτη 2 Δεκεμβρίου 2015

Genetic variants in IL12 influence both hepatitis B virus clearance and HBV-related hepatocellular carcinoma development in a Chinese male population

Abstract

IL12 plays a major role not only in inducing appropriate immune responses against viral infections (including HBV) but also in the antitumor immune response. This study was conducted to investigate the relationships of genetic variants in IL12 with hepatitis B virus (HBV) clearance and development of HBV-related hepatocellular carcinoma (HCC). We genotyped three single nucleotide polymorphisms (SNPs) of the IL12A (rs568406 and rs2243115) and IL12B (rs3212227) in 395 HBV-positive HCC patients, 293 persistent HBV carriers and 686 subjects with HBV natural clearance from southern China, using the improved multiplex ligase detection reaction (iMLDR) method. Logistic regression analysis adjusted for age, smoking, and alcohol consumption status showed that rs568408 variant genotypes were significantly associated with host HBV-related HCC risk when compared with persistent HBV carriers, and carriers of the GA + AA genotype decreased the HCC risk in comparison with GG carriers (adjusted OR = 0.53, 95 % CI 0.35–0.80, P = 0.002). No relationships between the rs2243115 and rs3212227 SNPs and HCC risk were observed (all P > 0.05). Besides, rs568408 showed an approaching significant effect on susceptibility to HBV persistent infection (adjusted OR = 1.34, 95 % CI 0.99–1.81, P = 0.057 in dominant genetic models). Furthermore, the TG haplotype was observed to be associated with a significantly increased risk of HBV-related HCC (OR = 1.42, 95 % CI 1.10–1.83, P = 0.006), while TA haplotype was associated with a decreased risk of HBV-related HCC (OR = 0.61, 95 % CI 0.45–0.83, P = 0.002). Our results reveal that the IL12A rs568408 variant may be a marker SNP for risk of both HBV clearance and HBV-related HCC development.



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