Epidemiology of myeloproliferative neoplasms in the United States

2013 ◽  
Vol 55 (3) ◽  
pp. 595-600 ◽  
Author(s):  
Jyotsna Mehta ◽  
Hongwei Wang ◽  
Sheikh Usman Iqbal ◽  
Ruben Mesa
Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 2250-2250
Author(s):  
Simon Condliffe ◽  
Jingbo Yu ◽  
Dilan Chamikara Paranagama ◽  
Shreekant Parasuraman

Abstract Background: Patients with myeloproliferative neoplasms (MPNs), including myelofibrosis (MF), polycythemia vera (PV), and essential thrombocythemia (ET), experience a high symptom burden that may compromise daily functioning and quality of life. The objective of this analysis was to evaluate income loss associated with disease-related employment changes among patients with MPNs in the United States. Methods: The Living with MPN survey was completed online by adult patients (aged 18-70 years) with MF, PV, or ET in the United States between April and November of 2016. Respondents employed at the time of MPN diagnosis were asked questions about disease-related changes in employment status and salaries occurring between diagnosis and the year of survey (2016). In addition, details related to patient demographics, MPN diagnosis, and MPN-related symptoms were collected. Cumulative income losses as a result of disease-related employment changes up to the time of the survey were calculated based on the timing of employment changes and salaries, which were reported in nominal dollars. Results: Of the 904 survey respondents, 592 (65%) were employed at the time of MPN diagnosis. Among those employed, mean age was 54.0 years, 70.6% were female, and 72.3% were married or had domestic partners at the time of survey. The average duration of disease was 6.1 years (MF, 4.6; PV, 6.9; ET, 6.3). Approximately half (50.5%) of the employed respondents experienced at least one change in employment status because of their diagnosis. Employment status changes and associated impact on income in patients with MPNs was greatest for those who took early retirement, medical disability leave, or left a job due to their disease ($419,610, $169,048, $168,245, respectively). Respondents who changed from full- to part-time employment, reduced hours, or were reassigned to a lower-paying job because of their disease also reported income losses ($79,492, $47,104, $51,872, respectively; Table). Among respondents who were 45-64 years old at the time of the survey (n=383), 18.8% reported retiring early as a result of their disease. In comparison, according to nationally representative data from the Medical Expenditures Panel Survey (MEPS), only 7.8% of individuals aged 45-64 years in excellent or very good health and 9.2% of individuals in poor health reported being retired (longitudinal data set 2014-2015). Moreover, 30.5% (117/383) of respondents aged 45-64 years in the Living with MPN survey reported leaving a job as a result of their disease. In comparison, 5.5% of MEPS individuals aged 45-64 years in excellent or very good health and 16.4% of individuals in poor health were working at the start of 2014 but not by the end of 2015. Conclusions: About half of employed patients living with MPNs experienced a variety of employment changes as a result of their disease, which in turn had a considerable impact on income. The most frequently reported disease-related employment change was leaving a job, followed by medical disability leave, reduced hours, early retirement, switching from full-time to part-time, and being reassigned to a lower-paying job. Patients 45-64 years old with MPNs were more than twice as likely to have left a job or retired early compared with an age-matched US general population cohort. On average, the foregone income due to disease-related employment changes was greatest for early retirees ($419,610), followed by those who went on medical disability leave ($169,048), and left a job ($168,245). Early, effective management of MPNs and associated symptoms may help patients avoid these disease-related changes to their employment status and the subsequent economic and financial impact. Disclosures Condliffe: Incyte Corporation: Consultancy. Yu:Incyte Corporation: Employment, Equity Ownership. Paranagama:Incyte: Employment, Equity Ownership. Parasuraman:Incyte: Employment, Equity Ownership.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 2806-2806
Author(s):  
Samer A Srour ◽  
Susan S Devesa ◽  
Lindsay M Morton ◽  
David P Check ◽  
Rochelle E Curtis ◽  
...  

Abstract Introduction: Epidemiologic information on myeloproliferative neoplasms (MPNs) and myelodysplastic (MDS)/MPNs is largely derived from single institution and European population-based studies. Further, descriptive data encompassing the era of the World Health Organization classification (WHO) of hematopoietic neoplasms and JAK2 V617 mutation testing are sparse. Therefore, we utilized population-based data to comprehensively assess incidence and patient survival of MPNs and MDS/MPNs in the United States (US) during 2001-2012. Methods: Using data from the National Cancer Institute's Surveillance, Epidemiology and End Results Program (SEER) Program, we assessed the incidence rates (IRs), IR ratios (IRRs), and 95% confidence intervals (CI) for each MPN and MDS/MPN entity. We assessed IRs overall and according to sex, race/ethnicity, calendar year of diagnosis, and method of diagnostic confirmation. We utilized the SEER*Stat Survival Session to calculate 5-year relative survival (RS) and 95% CI for each disease entity overall and according to sex and age at diagnosis. Results: A total of 44,912 patients were diagnosed with MPNs and MDS/MPNs during 2001-2012. IRs were highest for polycythemia vera (PV) (n=10,812; IR=10.9 per 1,000,000 person-years) and essential thrombocythemia (ET) (n=9,394; IR=9.6). Except for ET and mastocytosis, the overall IRs for all entities were significantly higher among males than females, with male-to-female IRRs ranging from 1.4-2.3. PV incidence peaked in 2003-2004 and progressively decreased thereafter in contrast to IRs for ET which markedly increased after 2003-2004, with a suggestion of decrease after 2008. BCR-ABL1-positive chronic myelogenous leukemia (CML) IRs increased progressively over the study period while CML, NOS decreased over the study decade. All evaluable MPNs were associated with lower IRs among Hispanic whites than non-Hispanic whites (NHWs), with the exception of BCR-ABL1-positive CML, chronic eosinophilic leukemia (CEL), and juvenile myelomonocytic leukemia which occurred similarly among both groups. Except for CEL, Asians/Pacific Islanders had significantly lower MPN IRs than NHWs. ET, MPN-unclassifiable, and CEL IRs were 18%, 19%, and 60% higher, respectively, among blacks than NHWs. Among males and females, for all evaluable MPNs and MDS/MPNs, five-year RS was more favorable for younger (<60 years) than older (>60 years) individuals. Patients with PV or ET had the most favorable RS among both sexes and age groups, ranging from 92.0%-96.7% among those <60 years and 79.1%-87.9% among those >60 years. Patients with chronic neutrophilic leukemia, chronic myelomonocytic leukemia, and atypical BCR-ABL1 -negative CML patients had the least favorable 5-year RS (<35%). Females generally had more favorable survival than males, except for older males with PV who had significantly better survival than older women (RS IRR=1.08, 95%CI=1.03-1.13). Conclusion: MPNs are a heterogeneous group of diseases and varying age, sex, and racial/ethnic incidence patterns support distinct etiologies and/or susceptible populations. The introduction of JAK2 V617 mutation testing in 2005 may have had a differential impact on IRs of PV and ET. Less favorable RS among older ages for all MPN subtypes suggests the need for inclusion of these individuals in clinical trials as new treatments become available. Disclosures No relevant conflicts of interest to declare.


2019 ◽  
Author(s):  
Robyn M. Scherber ◽  
Lindsey Whyte ◽  
Michelle Woehrle ◽  
Claire Harrison ◽  
John Mascarenhas ◽  
...  

2019 ◽  
Author(s):  
Robyn M. Scherber ◽  
Lindsey Whyte ◽  
Michelle Woehrle ◽  
Claire Harrison ◽  
John Mascarenhas ◽  
...  

2016 ◽  
Vol 174 (3) ◽  
pp. 382-396 ◽  
Author(s):  
Samer A. Srour ◽  
Susan S. Devesa ◽  
Lindsay M. Morton ◽  
David P. Check ◽  
Rochelle E. Curtis ◽  
...  

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0243562
Author(s):  
Jingbo Yu ◽  
Dilan Paranagama ◽  
Shreekant Parasuraman

Background Recruitment of individuals with rare diseases for studies of real-world patient-reported outcomes is limited by small base populations. Myeloproliferative neoplasms (MPNs) are a group of rare, chronic, hematologic malignancies. In this study, recruitment strategies and geographic representativeness from the Living with MPNs survey are reported. Methods The Living with MPNs online cross-sectional survey was conducted between April and November 2016. Individuals 18 to 70 years of age living in the United States and diagnosed with an MPN were eligible to participate. Recruitment approaches included direct contact via emails and postcards; posts on MPN-focused social media and patient advocacy websites; postcard mailings to doctors’ offices; and advertisements on medical websites, Google, and Facebook. Geographic representativeness was assessed based on the number of survey respondents living in each state or the District of Columbia and by the number of survey respondents per 10 million residents. Results A total of 904 respondents with MPNs completed the survey. The recruitment method yielding the greatest number of respondents was advertisements on MPN-focused social media (47.6% of respondents), followed by emails (35.1%) and postcards (13.9%) sent through MPN advocacy groups. Home state information was provided by 775 respondents from 46 states (range of respondents per state, 1–89). The number of respondents per 10 million residents in the 46 states with respondents ranged from 12.1 to 52.7. Conclusions Recruitment using social media and communications through patient groups and advocacy organizations are effective in obtaining geographically representative samples of individuals with MPNs in the United States. These approaches may also be effective in other rare diseases.


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