The impact of subsequent metastasis on survival in Medicare patients with prostate cancer.

2016 ◽  
Vol 34 (2_suppl) ◽  
pp. 94-94
Author(s):  
Tracy Li ◽  
Neal D. Shore ◽  
Maneesha Mehra ◽  
Mary Beth Todd ◽  
Ryan Saadi ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Proportional Hazards ◽  
Performance Status ◽  
Delayed Diagnosis ◽  
The United States ◽  
Cox Proportional Hazards ◽  
All Cause Mortality ◽  
And Performance ◽  
Using Data ◽  
The Impact

94 Background: This study assessed the impact of subsequent metastasis on survival in Medicare prostate cancer (PC) patients initially diagnosed with locoregional disease. Methods: Using data from the United States Surveillance, Epidemiology, and End Results (SEER) cancer registry linked to Medicare claims, we identified patients diagnosed with locoregional PC between 2000 and 2011, age ≥ 66 at diagnosis, and who first had a diagnosis of metastasis ≥ 4 months after PC diagnosis (cases). Cases were matched to controls (patients without metastasis) in a 1:4 ratio to assess the incremental impact of developing metastasis. For each control, the timeline to develop metastasis was matched to the cases. Kaplan-Meier (K-M) analysis was used to compare all-cause, cancer-specific, and other-cause mortality between cases and controls. Cox proportional hazards regression was used to adjust for other factors associated with all-cause mortality. Results: There were 10,370 cases and 39,200 controls. Mean age at baseline was 79 years in each group. Among the cases, the median time to first metastasis was 37 months, 85% had bone metastasis, and the median survival time (months) after metastasis was 18 months compared to 118 months for controls (P < 0.0001: Log-Rank). In K-M analysis, metastasis was associated with significantly (P < 0.0001: Log-Rank) higher all-cause, cancer-related, and other-cause mortality. In multivariable survival analysis, metastasis was associated with increased all-cause mortality (HR = 4.6, 95% CI = 4.4-4.7, P < 0.0001). High risk disease (based on Gleason score, comorbidity Index, and performance status) and delayed diagnosis of metastases were associated with worse survival. Conclusions: Development of metastasis in elderly PC patients diagnosed with locoregional disease significantly increases mortality.

Significantly Higher Mortality Following Liver Transplantation Among Patients Aged 70 Years and Older

2017 ◽  
Vol 27 (3) ◽  
pp. 225-231 ◽  
Author(s):  
Mokshya Sharma ◽  
Aijaz Ahmed ◽  
Robert J. Wong
Keyword(s):  
United States ◽  
Hepatocellular Carcinoma ◽  
Liver Transplantation ◽  
Hepatitis C ◽  
Proportional Hazards ◽  
The United States ◽  
Cox Proportional Hazards ◽  
Cox Proportional Hazards Models ◽  
Using Data ◽  
The Impact

Introduction: The age of liver transplantation recipients in the United States is steadily increasing. However, the impact of age on liver transplant outcomes has demonstrated contradictory results. Research Questions: We aim to evaluate the impact of age on survival following liver transplantation among US adults. Design: Using data from the United Network for Organ Sharing registry, we retrospectively evaluated all adults undergoing liver transplantation from 2002 to 2012 stratified by age (aged 70 years and older vs aged <70 years), presence of hepatocellular carcinoma, and hepatitis C virus status. Overall survival was evaluated with Kaplan-Meier methods and multivariate Cox proportional hazards models. Results: Compared to patients aged <70 years, those aged 70 years and older had significantly lower 5-year survival following transplantation among all groups analyzed (hepatocellular carcinoma: 59.9% vs 68.6%, P < .01; nonhepatocellular carcinoma: 61.2% vs 74.2%, P < .001; hepatitis C: 60.7% vs 69.0%, P < .01; nonhepatitis C: 62.6% vs 78.5%, P < .001). On multivariate regression, patients aged 70 years and older at time of transplantation was associated with significantly higher mortality compared to those aged <70 years (hazards ratio: 1.67; 95% confidence interval: 1.48-1.87; P < .001). Conclusion: The age at the time of liver transplantation has continued to increase in the United States. However, patients aged 70 years and older had significantly higher mortality following liver transplantation. These observations are especially important given the aging cohort of patients with chronic liver disease in the United States.

scholarly journals Risk and Timing of Cardiovascular Disease After Androgen-Deprivation Therapy in Men With Prostate Cancer

2015 ◽  
Vol 33 (11) ◽  
pp. 1243-1251 ◽  
Author(s):  
Sean O'Farrell ◽  
Hans Garmo ◽  
Lars Holmberg ◽  
Jan Adolfsson ◽  
Pär Stattin ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cardiovascular Disease ◽  
Androgen Deprivation Therapy ◽  
Proportional Hazards ◽  
Cox Proportional Hazards ◽  
Androgen Deprivation ◽  
Gnrh Agonists ◽  
Cvd Risk ◽  
Comparison Cohort ◽  
Using Data

Purpose Findings on the association between risk of cardiovascular disease (CVD) and the duration and type of androgen-deprivation therapy (ADT) in men with prostate cancer (PCa) are inconsistent. Methods By using data on filled drug prescriptions in Swedish national health care registers, we investigated the risk of CVD in a cohort of 41,362 men with PCa on ADT compared with an age-matched, PCa-free comparison cohort (n = 187,785) by use of multivariable Cox proportional hazards regression models. Results From 2006 to 2012, 10,656 men were on antiandrogens (AA), 26,959 were on gonadotropin-releasing hormone (GnRH) agonists, and 3,747 underwent surgical orchiectomy. CVD risk was increased in men on GnRH agonists compared with the comparison cohort (hazard ratio [HR] of incident CVD, 1.21; 95% CI, 1.18 to 1.25; and orchiectomy: HR, 1.16; 95% CI, 1.08 to 1.25). Men with PCa on AA were at decreased risk (HR of incident CVD, 0.87; 95% CI, 0.82 to 0.91). CVD risk was highest during the first 6 months of ADT in men who experienced two or more cardiovascular events before therapy, with an HR of CVD during the first 6 months of GnRH agonist therapy of 1.91 (95% CI, 1.66 to 2.20), an HR of CVD with AA of 1.60 (95% CI, 1.24 to 2.06), and an HR of CVD with orchiectomy of 1.79 (95% CI, 1.16 to 2.76) versus the comparison cohort. Conclusion Our results support that there should be a solid indication for ADT in men with PCa so that benefit outweighs potential harm; this is of particular importance among men with a recent history of CVD.

scholarly journals Prostate cancer-specific survival differences in patients treated by radical prostatectomy versus curative radiotherapy

2013 ◽  
Vol 7 (5-6) ◽  
pp. 299 ◽  
Author(s):  
Julie M. DeGroot ◽  
Michael D. Brundage ◽  
Miu Lam ◽  
Susan L. Rohland ◽  
Jeremy Heaton ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Proportional Hazards ◽  
Risk Groups ◽  
Cox Proportional Hazards ◽  
Intermediate Risk ◽  
Cancer Specific Survival ◽  
Entire Study ◽  
Curative Radiotherapy ◽  
The Impact ◽  
Cause Specific Survival

Objective: We compared the cause-specific survival of patientswho received radiotherapy to those who received surgery for cureof their prostate cancer using a number of design and analytic stepsto mitigate confounding by indication.Methods: This was a case-cohort study of 2213 patients in theOntario Cancer Registry diagnosed between 1990 and 1998 whowere either treatment candidates or received curative radiotherapyor surgery. Cases included patients who died of prostate cancerwithin 10 years. The study population was restricted to those whowere candidates for either treatment (radiotherapy or surgery)based on disease severity (low and intermediate risk using theGenitourinary Radiation Oncologists of Canada risk groups). Themedian follow-up was 51 months. Cause-specific survival wasanalyzed using Cox-proportional hazards regression with casecohortvariance adjustment.Results from intent-to-treat analyseswere compared to results by treatment received.Results: Adjusted hazard ratios for risk of prostate cancer death forradiotherapy compared to surgery for the entire study populationwere 1.62 (95%CI 1.00-2.61) and 2.02 (1.19-3.43) analyzing byintent-to-treat and treatment received, respectively. Intent-to-treathazard ratios for the low- and intermediate-risk groups were 0.87(0.28-2.76) and 1.57 (0.95-2.61), respectively.Conclusion: Overall results were driven by the finding in the intermediate-risk group, which indicated that radiotherapy was not aseffective as surgery in this group. Confirmation was needed withspecial attention paid to risk stratification and the impact of morecontemporary delivery of these treatment options.

Current treatments, determinants of use, and survival for patients with hepatoma in the United States from 1998–2002

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 4138-4138
Author(s):  
A. B. Siegel ◽  
R. McBride ◽  
D. Hershman ◽  
R. S. Brown ◽  
J. Emond ◽  
...  
Keyword(s):  
Tumor Size ◽  
Proportional Hazards ◽  
Case Series ◽  
Tumor Grade ◽  
The United States ◽  
Cox Proportional Hazards ◽  
Data Set ◽  
Cox Proportional Hazards Models ◽  
Highly Correlated ◽  
The Impact

4138 Background: Multiple case series have described the use of current therapies for hepatocellular carcinoma (HCC), but recent estimates of treatment utilization in the general population and the impact of various treatments on survival are not known. Methods: We first identified 2898 adults diagnosed with HCC with known tumor size and stage in the Surveillance, Epidemiology, and End-Results Program (SEER), from 1998–2002. Treatment was categorized as transplant, resection, ablation, or none of these. We created a second data set of 1856 HCC patients who were potentially operable, as defined by SEER. We used these patients to construct Kaplan-Meier survival curves and adjusted Cox proportional hazards models. Results: The median age of the larger cohort at HCC diagnosis was 62 (range:18–96). Approximately 42% were white, 32% Asian, 16% Hispanic, and 10% African American. Overall, 10% received a transplant, 18% resection, 8% ablation, and 65% none of these. Only 5% of African Americans with HCC received a transplant, versus 12% of whites, 10% of Hispanics, and 8% of Asians. Asians were most likely to receive resection (24%) and ablation (9%), and least likely to have non-surgical treatment (60%). Using the restricted cohort, improved survival in the multivariate analysis was seen with later year of diagnosis, younger age, female sex, Asian race, smaller tumor size, lower tumor grade, and localized disease. Treatment was highly correlated with survival. This was greatest in the transplanted group (1, 3, and 5-year survivals 93%, 79%, and 71%), followed by resection (70%, 45%, and 29%), and ablation (71%, 33%, and 18%). The non-surgical group had poor survival (33%, 9%, and 0%). Conclusions: Transplantation yields excellent survival on a population scale, similar to reported series, and resection gives relatively good outcomes as well. Asians are more likely to be resected and ablated than other groups. They also had better survival than other groups, perhaps due to underlying etiology of HCC (hepatitis B) and better preserved liver function. No significant financial relationships to disclose.

Evaluating the impact of African American ancestry among men with localized prostate cancer treated with radical prostatectomy.

2018 ◽  
Vol 36 (6_suppl) ◽  
pp. 41-41
Author(s):  
Daniel Canter ◽  
Julia E. Reid ◽  
Maria Latsis ◽  
Margaret Variano ◽  
Shams Halat ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
African American ◽  
Radical Prostatectomy ◽  
Gleason Score ◽  
Metastatic Disease ◽  
Proportional Hazards ◽  
Clinical Stage ◽  
Cox Proportional Hazards ◽  
Significant Difference ◽  
The Impact

41 Background: Prostate cancer (PC) is the most common male malignancy. Prior data has suggested that African American (AA) men present with more aggressive disease relative to men of other ancestries. Here, we examined the effects of ancestry on clinical and molecular measures of disease aggressiveness as well as pathologic outcomes in men treated with radical prostatectomy (RP) for localized PC. Methods: Data was collected from patients undergoing RP at the Ochsner Clinic from 2006 to 2011. Formalin−fixed paraffin embedded biopsy tissue was analyzed for the RNA expression of 31 cell cycle progression (CCP) genes and 15 housekeeping genes to obtain a CCP score (a validated molecular measure of PC aggressiveness). Cancer of the Prostate Risk Assessment (CAPRA) scores were also determined based on clinicopathologic features at the time of diagnosis. Clinical (Gleason score, tumor stage, CAPRA score) and molecular (CCP score) measures of disease aggressiveness were compared based on ancestry (AA versus non−AA). Cox proportional hazards models were used to test association of ancestry to biochemical recurrence (BCR) and progression to metastatic disease. Fisher’s exact and Wilcoxon rank sum tests were used to compare ancestries. Results: A total of 384 patients were treated with RP, including 133 (34.8%) AA men. At the time of diagnosis, the median age was 62 years (interquartile range (IQR) 56, 66) and PSA was 5.4 ng/mL (IQR 4.2, 7.6). When compared by ancestry, there were no significant differences in biopsy Gleason score (p = 0.26), clinical stage (p = 0.27), CAPRA score (p = 0.58), or CCP score (p = 0.87). In addition, there was no significant difference in the risk of BCR between ancestries (p = 0.55). Only non−AA men progressed to metastatic disease within the ten years of follow−up. Conclusions: Contrary to prior reports, these data appears to indicate that men of AA ancestry do not necessarily present with or develop a more biologically aggressive form of PC. Although these data represents only one institution’s experience, it contains a highly robust AA population compared to prior reports. Further research is required to account for the discrepancy in the previously published literature.

The relative contributions of the Genomic Prostate Score and comorbidity profile in predicting outcomes in surgically treated men with clinically low and intermediate-risk prostate cancer.

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e16607-e16607
Author(s):  
Jennifer Cullen ◽  
Dudith Pierre-Victor ◽  
H. Jeffrey Lawrence ◽  
Huai-Ching Kuo ◽  
Isabell Sesterhenn ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Proportional Hazards ◽  
Cox Proportional Hazards ◽  
Intermediate Risk ◽  
Free Survival ◽  
Risk Prostate Cancer ◽  
Risk Stratum ◽  
Diagnostic Biopsy ◽  
Using Data

e16607 Background: The 17-gene Oncotype Dx Genomic Prostate Score® (GPS™) assay has been validated as a predictor of aggressive prostate cancer (PCa) in men treated with radical prostatectomy (RP) for clinically low and intermediate risk PCa. This study examined the performance of the GPS assay as a predictor of adverse pathology (AP) and biochemical recurrence (BCR)-free survival (BRFS), after adjusting for the presence of major comorbidities commonly seen in older men. Methods: Additional analyses were performed using data from a prior clinical validation study of the GPS assay. GPS values (scaled 0-100), determined from diagnostic biopsy tissue, were categorized into 3 levels: lowest quartile (Q1), middle quartiles (combined Q2-Q3) versus the highest quartile (Q4). Major comorbidities included heart disease, stroke, COPD, and other cancers. The associations between GPS result and the presence of ≥1 major comorbidity and outcomes were examined. AP was defined as high-grade (Gleason Score ≥ 4+3) and/or pT3 tumor. BCR was defined as 2 successive PSA levels > 0.2 ng/mL. Logistic regression analysis was used to examine AP; Cox proportional hazards analysis was used to model BRFS. Results: Among 389 eligible men, median age at diagnosis and follow-up time was 62 and 5.6 years, respectively. The prevalence of ≥1 major comorbidity differed significantly across GPS category, rising from 10.2% to 19.7% to 25.5% for GPS Quartiles 1, 2-3, and 4, respectively (p = 0.0024). However, presence of ≥1 major comorbidity was not a significant predictor of AP or BCR in multivariable models with GPS, age, race, and NCCN risk stratum. Men whose GPS result was in the highest quartile had 4-fold higher odds of AP (OR: 4.1; 95% CI = 2.1-7.99, p < 0.0001) at RP and a 3.5 times higher risk of BCR (HR = 3.49; 95% CI = 1.59-7.64, p = 0.002) compared to men in the lowest GPS quartile (Table 1). Conclusions: A high GPS result remains the strongest predictor of BCR and AP in this cohort of low and intermediate risk PCa men, after adjusting for the presence of major comorbidities. Further work will explore the relationships between specific comorbidities and metabolic syndrome, with GPS testing and PCa outcomes.

scholarly journals Impact of the Changes in the Frequency of Social Participation on All-Cause Mortality in Japanese Older Adults: A Nationwide Longitudinal Study

2021 ◽  
Vol 19 (1) ◽  
pp. 270
Author(s):  
Keiichi Shimatani ◽  
Mayuko T. Komada ◽  
Jun Sato
Keyword(s):  
Older Adults ◽  
Social Participation ◽  
Proportional Hazards ◽  
Proportional Hazards Model ◽  
Cox Proportional Hazards ◽  
Cox Proportional Hazards Model ◽  
Risk Of Mortality ◽  
All Cause Mortality ◽  
Japanese Older Adults ◽  
The Impact

Previous studies have shown that more frequent social participation was associated with a reduced risk of mortality. However, limited studies have explored the changes in the frequency of social participation in older adults. We investigated the impact of the changes in the frequency of social participation on all-cause mortality in Japanese older adults aged 60 years and older. The current study, conducted as a secondary analysis, was a retrospective cohort study using open available data. The participants were 2240 older adults (45.4% male and 54.6% female) sampled nationwide from Japan who responded to the interview survey. Changes in the frequency of social participation were categorized into four groups (none, initiated, decreased, and continued pattern) based on the responses in the baseline and last surveys. The Cox proportional-hazards model showed a decreased risk of all-cause mortality in decreased and continued patterns of social participation. Stratified analysis by sex showed a decreased risk of mortality in the continued pattern only among males. The results of the current study suggest that the initiation of social participation at an earlier phase of life transition, such as retirement, may be beneficial for individuals.

scholarly journals Survival of Patients with Hepatocellular Carcinoma in Renal Insufficiency: Prognostic Role of Albumin-Bilirubin Grade

Cancers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1130
Author(s):  
Shu-Yein Ho ◽  
Chia-Yang Hsu ◽  
Po-Hong Liu ◽  
Chih-Chieh Ko ◽  
Yi-Hsiang Huang ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Renal Insufficiency ◽  
Proportional Hazards ◽  
Proportional Hazards Model ◽  
Performance Status ◽  
Cox Proportional Hazards ◽  
Cox Proportional Hazards Model ◽  
Prognostic Role ◽  
The Impact

Renal insufficiency (RI) is commonly seen in patients with hepatocellular carcinoma (HCC). The prognostic role of albumin-bilirubin (ALBI) grade in this special setting is unclear. We aimed to investigate the role of ALBI grade associated with the impact of RI on HCC. A prospective cohort of 3690 HCC patients between 2002 and 2016 were retrospectively analyzed. The Kaplan–Meier method and multivariate Cox proportional hazards model were used to determine survival and independent prognostic predictors. Of all patients, RI was an independent predictor associated with decreased survival. In multivariate Cox analysis for patients with RI, α-fetoprotein level ≥20 ng/mL, tumor size >3 cm, vascular invasion, distant metastasis, presence of ascites, performance status 1–2, performance status 3–4, and ALBI grade 2 and grade 3 were independent predictors of decreased survival (all p < 0.05). In subgroup analysis of patients with RI undergoing curative and non-curative treatments, the ALBI grade remained a significant prognostic predictor associated with decreased survival (p < 0.001). In summary, HCC patients with RI have decreased survival compared to those without RI. The ALBI grade can discriminate the survival in patients with RI independent of treatment strategy and is a feasible prognostic tool in this special patient population.

scholarly journals COPD exacerbations: the impact of long versus short courses of oral corticosteroids on mortality and pneumonia: nationwide data on 67 000 patients with COPD followed for 12 months

2019 ◽  
Vol 6 (1) ◽  
pp. e000407 ◽  
Author(s):  
Pradeesh Sivapalan ◽  
Truls Sylvan Ingebrigtsen ◽  
Daniel Bech Rasmussen ◽  
Rikke Sørensen ◽  
Christian Madelaire Rasmussen ◽  
...  
Keyword(s):  
Proportional Hazards ◽  
Cox Proportional Hazards ◽  
Sensitivity Analyses ◽  
Chronic Obstructive ◽  
Copd Exacerbations ◽  
All Cause Mortality ◽  
Oral Corticosteroids ◽  
Long Course ◽  
Short Courses ◽  
The Impact

IntroductionA large group of patients with chronic obstructive pulmonary disease (COPD) are exposed to an overload of oral corticosteroids (OCS) due to repeated exacerbations. This is associated with potential serious adverse effects. Therefore, we evaluated the impact of a recommended reduction of OCS duration in 2014 on the risk of pneumonia hospitalisation and all-cause mortality in patients with acute exacerbation of COPD (AECOPD).MethodsThis was a nationwide observational cohort study that was based on linked administrative registry data between 1 January 2010 and 31 October 2017. 10 152 outpatients with COPD (median age 70 years) treated with either a short (≤250 mg) or long course (>250 mg) of OCS for AECOPD were included in the study. Cox proportional hazards regression models were used to derive an estimation of multivariable adjusted HRs (aHRs) for pneumonia hospitalisation or all-cause mortality combined and pneumonia hospitalisation and all-cause mortality, separately.ResultsThe long course of OCS treatment for AECOPD was associated with an increased 1-year risk of pneumonia hospitalisation or all-cause mortality (aHR 1.3, 95% CI 1.1 to 1.4; p<0.0001), pneumonia hospitalisation (aHR 1.2, 95% CI 1.0 to 1.3; p=0.0110) and all-cause mortality (aHR 1.8, 95% CI 1.5 to 2.2; p<0.0001) as compared with the short course of OCS treatment. These results were confirmed in several sensitivity analyses.ConclusionThe change of recommendations from long courses to short courses of OCS for AECOPD in 2014 was strongly associated with a decrease in pneumonia admissions and all-cause mortality, in favour of short courses of OCS.

CALGB 140803—Association between cardiorespiratory fitness and overall survival in operable lung cancer patients: Ancillary analysis of protocol 9238

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 7518-7518
Author(s):  
L. Kohman ◽  
D. Watson ◽  
J. Herndon ◽  
N. Eves ◽  
B. Haithcock ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cardiorespiratory Fitness ◽  
Proportional Hazards ◽  
Performance Status ◽  
Cox Proportional Hazards ◽  
Gas Analysis ◽  
Surgical Patients ◽  
Peak Oxygen Consumption ◽  
Lung Cancer Patients ◽  
All Cause Mortality

7518 Background: Cardiorespiratory fitness is a well-established independent predictor of all-cause mortality in a broad range of adult populations. The association between cardiorespiratory fitness and mortality has not been investigated among individuals diagnosed with cancer. We examined the association between cardiorespiratory fitness and all-cause mortality in 398 patients with non-small cell lung cancer (NSCLC). Methods: Using a prospective, observational design, patients with known or suspected NSCLC enrolled in CALGB 9238 were studied. Prior to pulmonary resection, all participants performed an incremental exercise test with expired gas analysis to assess cardiorespiratory fitness (i.e., peak oxygen consumption; VO2peak) and were observed for death or until June 2008. Cox proportional hazards models were used to estimate the risk of all-cause mortality according to cardiorespiratory fitness category defined by VO2peak (<0.96 / 0.96–1.29 / >1.29 L.min-1) with adjustment for age, gender, and performance status. Results: Of the 398 patients, 335 underwent surgical resection and 63 were deemed not eligible for resection. Median follow-up was 30.8 months, 294 deaths were reported during this period. For the entire sample, mortality rates declined across increasing VO2peak categories (adjusted Ptrend= 0.012). Compared with patients achieving a VO2peak <0.96 L.min-1, the adjusted hazard ratio (HR) for all-cause mortality was 0.64 (95% CI, 0.46 to 0.88) for a VO2peak of 0.96–1.29 L.min-1, and 0.56 (95% CI, 0.39 to 0.80) for a VO2peak of >1.29 L.min-1. The corresponding HRs for surgical patients were 0.65 (95% CI, 0.44 to 0.96) and 0.62 (95% CI, 0.42 to 0.90) relative to the lowest VO2peak category (ptrend=0.03), respectively. For non-surgical patients, the HRs were 0.74 (95% CI, 0.32 to 1.75) and 0.43 (95% CI, 0.18 to 1.00) relative to the lowest category (ptrend<0.04). Conclusions: Low VO2peak is associated with poorer survival among surgical candidates with NSCLC. Further work is required to investigate the prognostic value of objective measures of functional capacity in NSCLC and other cancer populations. No significant financial relationships to disclose.

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