The influence of treatment facility volume on the mortality of multiple myeloma patients.

2016 ◽  
Vol 34 (7_suppl) ◽  
pp. 284-284
Author(s):  
Ronald S. Go ◽  
Adam C Bartley ◽  
Cynthia S Crowson ◽  
Nilay D. Shah ◽  
Elizabeth B. Habermann ◽  
...  

284 Background: MM is an uncommon cancer with annual incidence of only 27,000 cases in the US. Our study determined the extent to which the number of MM patients treated annually in a treatment facility affected all-cause mortality. Methods: We used the National Cancer Data Base (NCDB) to identify adult patients with MM diagnosed from 2003-2011. NCDB is sourced from over 1,500 Commission on Cancer-accredited cancer registries representing 70% of cancer cases in the US. We classified treatment facilities by quartiles based on facility volume (mean patients/year): Quartile 1 (Q1: < 3.6), Quartile 2 (Q2: 3.6-6.1), Quartile 3 (Q3: 6.1-10.3) and Quartile 4 (Q4: > 10.3). We used hot deck imputation to account for missing data, Cox regression to analyze the association between facility volume and time-to-death, and random intercepts to adjust for multiple patients per facility. Results: There were 94,722 MM patients cared for at 1,333 facilities. Most patients (73.5%) were diagnosed and treated in the same facility. The median age at diagnosis was 67 years and 54.7% were males. The median annual facility volume was 6.1 patients/year (IQR: 3.6-10.3; range: 0.2-109.9). The distribution of patients according to facility volume was Q1 (5.2%), Q2 (12.6%), Q3 (21.9%) and Q4 (60.3%). The unadjusted median overall survival by facility volume was: Q1: 26.9 months, Q2: 29.1 months, Q3: 31.9 months and Q4: 49.1 months. After multivariable analysis adjusting for demographic (sex, age, race, ethnicity), socioeconomic (income, education, insurance type), geographic (area of residence, treatment facility location), co-morbidity (Charlson-Deyo score), and disease-specific (year of diagnosis) factors, we show that facility volume remains an independent predictor of all-cause mortality. Compared to patients treated at Q4 facilities, patients treated at lower quartile facilities had a higher risk of death (Q3 HR: 1.16 [95% CI, 1.12-1.20]; Q2: 1.21 [1.17-1.26]; Q1: 1.27 [1.22-1.34]). We observed an inverse volume-outcome relationship up to an annual facility volume of approximately 60 patients. Conclusions: MM patients treated at higher volume facilities had lower risk of mortality compared to those treated at lower volume facilities.

2017 ◽  
Vol 35 (6) ◽  
pp. 598-604 ◽  
Author(s):  
Ronald S. Go ◽  
Adam C. Bartley ◽  
Cynthia S. Crowson ◽  
Nilay D. Shah ◽  
Elizabeth B. Habermann ◽  
...  

Purpose To determine the association between the number of patients with multiple myeloma (MM) treated annually at a treatment facility (volume) and all-cause mortality (outcome). Methods Using the National Cancer Database, we identified patients diagnosed with MM between 2003 and 2011. We classified the facilities by quartiles (Q; mean patients with MM treated per year): Q1: < 3.6; Q2: 3.6 to 6.1, Q3: 6.1 to 10.3, and Q4: > 10.3. We used random intercepts to account for clustering of patients within facilities and Cox regression to determine the volume-outcome relationship, adjusting for demographic (sex, age, race, ethnicity), socioeconomic (income, education, insurance type), geographic (area of residence, treatment facility location, travel distance), and comorbid (Charlson-Deyo score) factors and year of diagnosis. Results There were 94,722 patients with MM treated at 1,333 facilities. The median age at diagnosis was 67 years, and 54.7% were men. The median annual facility volume was 6.1 patients per year (range, 0.2 to 109.9). The distribution of patients according to facility volume was: Q1: 5.2%, Q2: 12.6%, Q3: 21.9%, and Q4: 60.3%. The unadjusted median overall survival by facility volume was: Q1: 26.9 months, Q2: 29.1 months, Q3: 31.9 months, and Q4: 49.1 months ( P < .001). Multivariable analysis showed that facility volume was independently associated with all-cause mortality. Compared with patients treated at Q4 facilities, patients treated at lower-quartile facilities had a higher risk of death (Q3 hazard ratio [HR], 1.12 [95% CI, 1.08 to 1.16]; Q2 HR, 1.17 [95% CI, 1.12 to 1.21]; Q1 HR, 1.22 [95% CI, 1.17 to 1.28]). Conclusion Patients who were treated for MM at higher-volume facilities had a lower risk of mortality compared with those who were treated at lower-volume facilities.


2021 ◽  
pp. 1-24
Author(s):  
Bushra Hoque ◽  
Zumin Shi

Abstract Selenium (Se) is a trace mineral that has antioxidant and anti-inflammatory properties. This study aimed to investigate the association between Se intake, diabetes, all-cause and cause-specific mortality in a representative sample of US adults. Data from 18,932 adults who attended the 2003-2014 National Health and Nutrition Examination Survey (NHANES) were analysed. Information on mortality was obtained from the US mortality registry updated to 2015. Multivariable logistic regression and Cox regression were used. Cross-sectionally, Se intake was positively associated with diabetes. Comparing extreme quartiles of Se intake, the odds ratio (OR) for diabetes was 1.44 (95% CI: 1.09–1.89). During a mean of 6.6 years follow-up, there were 1627 death (312 CVD, 386 cancer). High intake of Se was associated with a lower risk of all-cause mortality. When comparing the highest with the lowest quartiles of Se intake, the hazard ratios (HRs) for all-cause, CVD mortality, cancer mortality and other mortality were: 0.77 (95% CI 0.59-1.01), 0.62 (95% CI, 0.35-1.13), 1.42 (95% CI, 0.78-2.58) and 0.60 (95% CI,0.40-0.80), respectively. The inverse association between Se intake and all-cause mortality was only found among white participants. In conclusion, Se intake was positively associated with diabetes but inversely associated with all-cause mortality. There was no interaction between Se intake and diabetes in relation to all-cause mortality.


Blood ◽  
2017 ◽  
Vol 130 (Suppl_1) ◽  
pp. 915-915
Author(s):  
Qian Wang ◽  
Changchuan Jiang ◽  
Yaning Zhang ◽  
Stuthi Perimbeti ◽  
Prateeth Pati ◽  
...  

Abstract Introduction: Previous studies have shown that uninsured and Medicaid patients had higher morbidity and mortality due to limited access to healthcare. Disparities in cancer-related treatment and survival outcome by different insurance have been well established (Celie et al. J Surg Oncol.,2017). There are approximately 8,260 newly diagnosed HL cases in the US yearly (Master et al. Anticancer Res.2017). Therefore, we aim to investigate the variation of survival outcome and insurance status among HL patients. Methods: We extracted data from the US National Cancer Institute's Surveillance, Epidemiology and End Results (SEER) 18 program. HL patients who were diagnosed from 2007-2014 were included. Demographic information including age, sex, race, annual household income, education and insurance were also collected. Insurance includes uninsured, insured and any Medicaid. Race/ethnicity includes white, black and other (including American Indian/AK native, Asian/Pacific Islander). HL is categorized by using International Classification of Disease for Oncology (ICD-O-3) into classical HL NOS (CHL NOS), nodular lymphocyte predominant HL (NLP), lymphocyte rich (LR), mixed cellularity (MC), lymphocyte depleted (LD), and nodular sclerosis (NS). Treatment modality included RT alone, CT alone, RT and CT combined, and no RT or CT. Survival time was estimated by using the date of diagnosis and one of the following dates: date of death, date last known to be alive or date of the study cutoff (December 31, 2014). Chi-square test and multivariate Cox regression were performed by using SAS 9.4 (SAS Institute Inc., Cary, NC, USA). Exclusion criteria include: 1) patients with unknown or unspecified race; 2) patients who survived less than 6 months because time of radiotherapy/chemotherapy was not known to the time of diagnosis; 3) patients with any other type of cancer prior to the diagnosis of HL; 4) patients with second or later primaries, and who were not actively followed. Results: A total of 14.286 HL patients were included in the analysis. Table 1 indicates the insurance status and demographic and tumor characteristics among HL patients diagnosed between 2007 and 2014. Patients with black race, male sex, and B symptoms were more likely to be uninsured and on any Medicaid compared to other races, female sex and without B symptoms (p&lt;0.01). As stage of disease increased, the percentage of insured patients decreased from 82.0% to 71.7%, (p&lt;0.01). As with year of diagnosis advanced, the percentage of uninsured did not appear to be changed however the proportion of both those with insurance and any Medicaid decreased slightly by 2.4% (p&lt;0.01). Those who received RT only were most likely to have insurance (89.6%) followed by combination modality (80.1%). As expected, uninsured status was associated with lower income and education level (p&lt;0.01). Table 2 shows the insurance and hazard ratio among HL patients by year of diagnosis adjusting for race, sex, histology type, income, education, and year of diagnosis. Any Medicaid patients had the highest HR of death from 2007-2010 compared to insured patients. Without insurance was also associated with increased risk of death but only significant in 2008, HR=2.26, 95% CI (1.35, 3.80). The survival outcomes comparing different insurance status by age groups (&lt;=29 and 30-64) were demonstrated in Kaplan-Meier Curve. In the age 29 or less group, insured patient showed has the best survival outcome followed by any Medicaid and then the uninsured. In the age 30-64 group, Medicaid patients had the worst survival outcome compared to those with or without insurance. Conclusion: Insurance status is one of the most important contributors of health disparity, especially in malignancy given the significant financial toxicity of therapies. We found that the proportion of the uninsured was trending up before the Affordable Care Act (ACA). Regarding the HL outcome, insured patients had the best survival across all age groups even though not significantly while Medicaid patients had the worst outcomes in almost all age groups, even worse than the uninsured after adjusting for the disease stage at diagnosis and sociodemographic factors. It would be of interest to explore the reason behind Medicaid patients' relatively poor outcomes. Future studies may also investigate how ACA, Medicaid expansion, and the possible upcoming republican healthcare reform influence HL outcome. Disclosures No relevant conflicts of interest to declare.


2019 ◽  
Vol 57 (9) ◽  
pp. 1422-1431 ◽  
Author(s):  
Jens-Ulrik Stæhr Jensen ◽  
Lars Peters ◽  
Theis S. Itenov ◽  
Morten Bestle ◽  
Katrin M. Thormar ◽  
...  

Abstract Background The prognostic impact of mild/moderate liver impairment among critically ill patients is not known. We aimed to determine whether acute liver impairment, as measured by several biomarkers, (i) is frequent, (ii) influences prognosis and (iii) to determine whether such an effect is specific for infected critically ill patients. Methods A biomarker and clinical cohort study based on a randomized controlled trial. All-cause mortality was the primary endpoint. Biomarkers hyaluronic acid (HA), bilirubin, albumin, alkaline phosphatase and the international normalized ratio (INR) were determined. Multivariable statistics were applied to estimate risk increase according to liver biomarker increase at baseline and the model was adjusted for age, APACHE II, severe sepsis/septic shock vs. milder infection, chronic alcohol abuse Charlson’s co-morbidity index, cancer disease, surgical or medical patient, body mass index, sex, estimated glomerular filtration rate, mechanical ventilation and the other biomarkers. Time-to-event graphs were used. The patients were critically ill patients (n = 1096) from nine mixed medical/surgical intensive care units without known hepatobiliary disease. Results HA levels differed between infected patients (median 210.8 ng/mL [IQR: 93.2–556.6]) vs. the non-infected (median 56.8 ng/mL [IQR: 31.9–116.8], p < 0.001). Serum HA quartiles 2, 3 and 4 were independent predictors of 90-day all-cause mortality for the entire population (infected and non-infected). However, the signal was driven by the infected patients (positive interaction test, no signal in non-infected patients). Among infected patients, HA quartiles corresponded directly to the 90-day risk of dying: 1st quartile: 57/192 = 29.7%, 2nd quartile: 84/194 = 43.3%, 3rd quartile: 90/193 = 46.6%, 4th quartile: 101/192 = 52.3 %, p for trend: <0.0001. This finding was confirmed in adjusted analyses: hazard ratio vs. 1st quartile: 2nd quartile: 1.3 [0.9–1.8], p = 0.14, 3rd quartile: 1.5 [1.1–2.2], p = 0.02, 4th quartile: 1.9 [1.3–2.6], p < 0.0001). High bilirubin was also an independent predictor of mortality. Conclusions Among infected critically ill patients, subtle liver impairment, (elevated HA and bilirubin), was associated with a progressive and highly increased risk of death for the patient; this was robust to adjustment for other predictors of mortality. HA can identify patients at high risk.


2004 ◽  
Vol 7 (4) ◽  
pp. 557-562 ◽  
Author(s):  
Melvyn Hillsdon ◽  
Margaret Thorogood ◽  
Mike Murphy ◽  
Lesley Jones

AbstractBackground:As epidemiological studies have become more complex, demands for short, easily administered measures of risk factors have increased. This study investigates whether such a measure of physical activity is associated with the risk of death from all causes and death from specific causes.Methods:A prospective follow-up study of 11 090 men and women, aged 35–64 years, recruited from five UK general practices who responded to a postal questionnaire in 1989. Self-reported frequency of vigorous-intensity physical activity and data on confounding factors were collected at baseline survey. Death notifications up to 31 December 2001 were provided by the Office for National Statistics. The relative risk (and 95% confidence interval) of dying associated with each level of exposure to physical activity was estimated by the hazard ratio in a series of Cox regression models.Results:After > 10 years' follow-up there were 825 deaths among the 10 522 subjects with no previous history of angina or myocardial infarction. Participation in vigorous exercise was associated with a significantly lower risk of all-cause mortality. Similar associations were found for ischaemic heart disease and cancer mortality, although the relationships were not significant at the 5% level.Conclusions:Simple measures of self-reported vigorous physical activity are associated with the risk of future mortality, at least all-cause mortality in a somewhat selected group. Interpretation of the finding should be treated with caution due to the reliance on self-report and the possibility that residual confounding may underlie the associations. Because moderate-intensity physical activity is also beneficial to health, short physical activity questionnaires should include measures of such physical activity in the future.


2020 ◽  
Author(s):  
Vignesh Chidambaram ◽  
Akshay Gupte ◽  
Jann-Yuan Wang ◽  
Jonathan Golub ◽  
Petros Karakousis

Background: Hypertension induces systemic inflammation, but its impact on the outcome of infectious diseases like tuberculosis (TB) is unknown. Calcium channel blockers (CCB) improve TB treatment outcomes in pre-clinical models, but their effect in patients with TB remain unclear. Methods: This retrospective cohort study, including all patients > 18 years receiving treatment for culture-confirmed, drug-sensitive TB from 2000 to 2016 at the National Taiwan University Hospital, assessed the association of hypertension and CCB use with all-cause and infection-related mortality during the first 9 months of TB treatment, as well as sputum-smear microscopy and sputum-culture positivity at 2 and 6 months. Results: 1052 of the 2894 patients (36.4%) had hypertension. Multivariable analysis revealed that hypertension was associated with increased mortality due to all causes (HR 1.57, 95% confidence interval[CI], 1.23-1.99) and infections (HR 1.87, 95%CI, 1.34-2.6), but there was no statistical difference in microbiological outcomes when stratified based on hypertensive group. Dihydropyridine-CCB (DHP-CCB) use was associated with reduced all-cause mortality (HR 0.67, 95%CI: 0.45-0.98) only by univariate Cox regression. There was no association between DHP-CCB use and infection-related mortality (HR 0.78, 95%CI: 0.46-1.34) or microbiological outcomes in univariate or multivariate regression analyses. Conclusions: Patients with hypertension have increased all-cause mortality and infection-related mortality during the 9 months following TB treatment initiation. DHP-CCB use may lower all-cause mortality in TB patients with hypertension. The presence of hypertension or the use of CCB did not result in a significant change in microbiological outcomes. Keywords: Tuberculosis, hypertension, calcium channel blockers, mortality, treatment outcomes


2019 ◽  
Vol 21 (Supplement_6) ◽  
pp. vi114-vi114
Author(s):  
Josiah An ◽  
Adithya Chennamadhavuni ◽  
Sarah Mott ◽  
Rohan Garje

Abstract BACKGROUND Glioblastoma is one of the most aggressive and commonly encountered brain tumors. Standard of care includes surgical resection with adjuvant or concurrent chemoradiation which is predominantly based on adult clinical trials. Our study objective was to assess whether survival differed in AYA compared to older adults. METHODS The National Cancer Database was used to identify patients with at least surgically resected glioblastoma from 2004 to 2016. Cox regression models were utilized to estimate the effect of treatment on overall survival (OS) while accounting for immortal time bias (3-months) and clustering within facility. RESULTS Among 51,718 patients with glioblastoma identified, 2,930 patients were AYA. Multivariable analysis (MVA) shows OS was significantly higher in AYA, female, non-white, high income, unilateral cancer patients with private insurance receiving treatments in high volume facilities. OS among AYA patients was significantly lower in surgery + (radiation or chemotherapy: S+(RT or CT) group compared to surgery only (S) (HR=1.33, 95% CI 1.06–1.65), but no significant survival difference between surgery + chemoradiation (S+C+RT) groups and surgery only (HR=0.97, 95% CI 0.83–1.14). Median survival is ~28 months in AYA among S and S+C+RT groups whereas significantly lower survival (median OS ~18 months) is seen in S+RT or CT. Non-AYA patients were at 2 times increased risk of death compared to AYA patients who received the same type of treatment. CONCLUSIONS In conclusion, AYA population has more than twice the median OS in comparison to non-AYA patients. Worse overall survival was seen among S+RT or CT in comparison to S and S+RT+CT in AYA group. For patients needing either chemotherapy or radiation with surgery, possibly a trimodal approach might provide better survival advantage. Prospective studies are needed to further explore optimal treatment modalities in this unique population.


2020 ◽  
Vol 9 (24) ◽  
Author(s):  
Maria Lukács Krogager ◽  
Peter Søgaard ◽  
Christian Torp‐Pedersen ◽  
Henrik Bøggild ◽  
Gunnar Gislason ◽  
...  

Background Hyperkalemia can be harmful, but the effect of correcting hyperkalemia is sparsely studied. We used nationwide data to examine hyperkalemia follow‐up in patients with hypertension. Methods and Results We identified 7620 patients with hypertension, who had the first plasma potassium measurement ≥4.7 mmol/L (hyperkalemia) within 100 days of combination antihypertensive therapy initiation. A second potassium was measured 6 to 100 days after the episode of hyperkalemia. All‐cause mortality within 90 days of the second potassium measurement was assessed using Cox regression. Mortality was examined for 8 predefined potassium intervals derived from the second measurement: 2.2 to 2.9 mmol/L (n=37), 3.0 to 3.4 mmol/L (n=184), 3.5 to 3.7 mmol/L (n=325), 3.8 to 4.0 mmol/L (n=791), 4.1 to 4.6 mmol/L (n=3533, reference), 4.7 to 5.0 mmol/L (n=1786), 5.1 to 5.5 mmol/L (n=720), and 5.6 to 7.8 mmol/L (n=244). Ninety‐day mortality in the 8 strata was 37.8%, 21.2%, 14.5%, 9.6%, 6.3%, 6.2%, 10.0%, and 16.4%, respectively. The multivariable analysis showed that patients with concentrations >5.5 mmol/L after an episode of hyperkalemia had increased mortality risk compared with the reference (hazard ratio [HR], 2.27; 95% CI, 1.60–3.20; P <0.001). Potassium intervals 3.5 to 3.7 mmol/L and 3.8 to 4.0 mmol/L were also associated with increased risk of death (HR, 1.71; 95% CI, 1.23–2.37; P <0.001; HR, 1.36; 95% CI, 1.04–1.76; P <0.001, respectively) compared with the reference group. We observed a trend toward increased risk of death within the interval 5.1 to 5.5 mmol/L (HR, 1.29; 95% CI, 0.98–1.69). Potassium concentrations <4.1 mmol/L and >5.0 mmol/L were associated with increased risk of cardiovascular death. Conclusions Overcorrection of hyperkalemia to levels <4.1 mmol/L was frequent and associated with increased all‐cause and cardiovascular mortality. Potassium concentrations >5.5 mmol/L were also associated with an increased all‐cause and cardiovascular mortality.


2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 107-107
Author(s):  
Brandon George Smaglo ◽  
Yvonne Sada ◽  
Hop Sanderson Tran Cao ◽  
Mehmet Akce ◽  
Henry Mok ◽  
...  

107 Background: Recent data from the MAGIC trial show that pathologically positive lymph nodes (ypN+) despite neoadjuvant (NA) chemotherapy are associated with poorer survival. Although the use of NA therapy has increased, pathologic disease response to multimodality therapy (MMT) and its impact on outcome have not been well-defined. Methods: This retrospective cohort study of the National Cancer Database included patients with cN+ gastric cancer who underwent NA therapy followed by surgical resection between 2006 and 2012. Patients were categorized by NA treatment (chemotherapy or concurrent chemoradiation). Pre-treatment clinical (cN) and pathologic nodal staging (ypN) were used to determine downstaging rates from cN+ to ypN0. The association between overall risk of death and NA treatment, nodal response, and the use of adjuvant therapy was evaluated with multivariable Cox regression. Results: Among 1,489 patients with cN+ gastric cancer receiving NA therapy, 45.5% were treated with chemotherapy and 54.5% with chemoradiation. Rates of nodal downstaging were 29.9% for chemotherapy and 45.4% for chemoradiation. On multivariable analysis, treatment sequence and type were not associated with risk of death. Median survival was significantly lower in patients with ypN+ compared to those with ypN0 disease (27.7 vs 79.7 months; log-rank, p < 0.001).Among patients with ypN+ disease (n = 918), median survival was greater if adjuvant therapy was received (32.6 months vs. 25.3 months, log-rank, p < 0.001); adjuvant therapy was associated with a 19% decreased risk of death (Hazard Ratio [HR] 0.81; 95% CI 0.66-0.99), with further reduction among those who underwent a margin negative resection (HR 0.73; 95% CI 0.58-0.92). In patients with ypN0, adjuvant therapy was not associated with a lower risk of death. Conclusions: Over one third of node-positive gastric cancers demonstrated pathologic nodal downstaging with NA treatment, with chemoradiation yielding a higher response than chemotherapy. Patients with ypN+ had worse survival, and appeared to benefit from adjuvant therapy. Future gastric cancer trials should better define the role for NA chemoradiation and help individualize the use of adjuvant therapy based on nodal response.


Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Luc Djousse ◽  
Andrew Petrone ◽  
John Gaziano

Background: Previous studies have suggested that nut consumption, a good source of unsaturated fatty acids, magnesium, potassium, fiber, antioxidants, and vitamins is associated with a lower risk of coronary heart disease, type 2 diabetes, and sudden cardiac death. However, limited data are available on the association between nut intake and all-cause mortality. Objective: To test the hypothesis that nut consumption is inversely associated with the risk of all-cause mortality. Methods: A prospective cohort study of 20,742 male physicians from the Physicians’ Health Study. Nut intake was assessed between 1999 and 2002 using a food frequency questionnaire and deaths were ascertained by an endpoint committee. We used Cox regression to estimate multivariable adjusted relative risk of death according to nut consumption. In secondary analyses, we evaluated associations of nut consumption with cause-specific mortality (coronary heart disease, stroke, and cancer deaths). Results: During a median follow-up of 9.5 years, there were 2,732 deaths. The mean age at baseline was 66.6 ± 9.3 years. Median intake of nuts was 1 time per week. Multivariable adjusted hazard ratios (95% CI) were: 1.0 (ref), 0.91 (0.83-1.00), 0.85 (0.76-0.95), 0.86 (0.75-0.98), and 0.74 (0.63-0.87) for nut consumption of never, 1-3/month, 1/week, 2-4/week, and 5+/week, respectively (p for linear trend <0.0001), after adjustment for age, body mass index, alcohol use, smoking, exercise, energy intake, saturated fat, fruit and vegetables, red meat intake, and prevalent diabetes and hypertension. In a secondary analysis, nut intake was inversely related to CVD death; however, only a suggestive and non-statistically significant relation was seen for cancer mortality (Table). Conclusions: Our data are consistent with an inverse association between nut consumption and risk of all-cause mortality in US male physicians.


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