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  • 1
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 35, No. 15_suppl ( 2017-05-20), p. 7526-7526
    Abstract: 7526 Background: The presence of deletion 17p (del17), determined by chromosome analysis and/or fluorescence in situ hybridization (FISH), is a strong negative prognostic marker in chronic lymphocytic leukemia (CLL). Prior to the introduction of novel agents (ibrutinib, venetoclax), the clinical utility of cytogenetics/FISH was limited by the absence of chemoimmunotherapy regimens that were proven effective in patients with del17. Testing practices for chromosomal aberrations since the introduction of novel agents have not been reported. We report cytogenetic/FISH trends in a nationwide cohort of veterans diagnosed with CLL. Methods: CLL patients diagnosed 2008-2015 and receiving care at VA were identified through the VA Clinical Cancer Registry. Electronic medical records were used to determine cytogenetic/FISH testing (lab records), treatment histories (pharmacy dispensation records), and evidence of system use (heme-onc notes). Cytogenetic/FISH testing was identified by presence of specific keywords in the test name or Logical Observation Identifiers Names and Codes (LOINC) descriptions, then validated by human annotation. The testing rates are reported for the entire cohort, at time of diagnosis, time of regimen initiation (including the 12 months preceding initiation), during the novel era (2014 – 2015) and prior (2008–2013). Results: From 2008 to 2015, 3,638 CLL patients were diagnosed and received care at VA. Documented records of treatment regimens were available for 1,562 patients who received a total of 2,929 treatment regimens. Only 24% (998) of patients were tested at any point in time during their care at the VA, 17% (622) were tested at time of diagnosis, and 19% (542) of treatment courses were preceded by cytogenetic/FISH testing. No testing differences existed following the introduction of the novel agents at diagnosis (both ~ 17%), or prior to regimen initiation (20% vs 16%). Conclusions: Our study suggests CLL patients diagnosed and receiving care at the VA are not routinely undergoing cytogenetics/FISH testing at diagnosis or prior to treatment. Changing this practice pattern will personalize treatments so that del17 CLL patients receive less toxic and more effective therapies.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2017
    detail.hit.zdb_id: 2005181-5
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  • 2
    Online Resource
    Online Resource
    Wiley ; 2016
    In:  Pharmacoepidemiology and Drug Safety Vol. 25, No. 7 ( 2016-07), p. 749-754
    In: Pharmacoepidemiology and Drug Safety, Wiley, Vol. 25, No. 7 ( 2016-07), p. 749-754
    Abstract: There is an increasing reliance on databases of healthcare records for pharmacoepidemiology and other medical research, and such resources are often accessed over a long period of time so it is vital to consider the impact of changes in data, access methodology and the environment. The authors discuss change in communication and management, and provide a checklist of issues to consider for both database providers and users. The scope of the paper is database research, and changes are considered in relation to the three main components of database research: the data content itself, how it is accessed, and the support and tools needed to use the database. Copyright © 2016 John Wiley & Sons, Ltd.
    Type of Medium: Online Resource
    ISSN: 1053-8569 , 1099-1557
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2016
    detail.hit.zdb_id: 1491218-1
    SSG: 15,3
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  • 3
    In: Medical Care, Ovid Technologies (Wolters Kluwer Health), Vol. 45, No. 10 ( 2007-10), p. S81-S88
    Type of Medium: Online Resource
    ISSN: 0025-7079
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2007
    detail.hit.zdb_id: 2045939-7
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  • 4
    Online Resource
    Online Resource
    American Thoracic Society ; 2014
    In:  American Journal of Respiratory and Critical Care Medicine Vol. 189, No. 11 ( 2014-06-01), p. 1383-1394
    In: American Journal of Respiratory and Critical Care Medicine, American Thoracic Society, Vol. 189, No. 11 ( 2014-06-01), p. 1383-1394
    Type of Medium: Online Resource
    ISSN: 1073-449X , 1535-4970
    RVK:
    Language: English
    Publisher: American Thoracic Society
    Publication Date: 2014
    detail.hit.zdb_id: 1468352-0
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  • 5
    In: Urologic Oncology: Seminars and Original Investigations, Elsevier BV, Vol. 38, No. 1 ( 2020-01), p. 1.e1-1.e10
    Type of Medium: Online Resource
    ISSN: 1078-1439
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2020
    detail.hit.zdb_id: 2011021-2
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  • 6
    In: Arthritis & Rheumatology, Wiley, Vol. 73, No. 12 ( 2021-12), p. 2179-2188
    Abstract: Rheumatoid arthritis (RA) and its treatments are associated with an increased risk of infection, but it remains unclear whether these factors have an impact on the risk or severity of COVID‐19. The present study was undertaken to assess the risk and severity of COVID‐19 in a US Department of Veterans Affairs (VA) cohort of patients with RA and those without RA. Methods A matched cohort study using national VA data was conducted. Patients diagnosed as having RA were identified among nondeceased individuals who were active in the VA health care system as of January 1, 2020 and who had received care in a VA medical center in 2019; patients for whom no RA diagnostic code was indicated were matched to the RA patients (1:1) by age, sex, and VA site (non‐RA controls). Patients diagnosed as having COVID‐19 and those with severe COVID‐19 (defined as requiring hospitalization or leading to death) were ascertained from a national VA COVID‐19 surveillance database through December 10, 2020. Multivariable Cox models were used to compare the risk of COVID‐19 and COVID‐19 hospitalization or death between RA patients and non‐RA controls, after adjusting for demographic characteristics, comorbidities, health care utilization and access, and county‐level COVID‐19 incidence rates. Results This VA cohort of RA patients and non‐RA controls (n = 33,886 subjects per group) predominantly comprised male patients (84.5%), and the mean age was 67.8 years. During follow‐up, 1,503 patients in the cohort were diagnosed as having COVID‐19; among them, 388 patients had severe COVID‐19 (hospitalization or death), while in 228 patients, the deaths were not related to COVID‐19. In the multivariable model, RA was associated with a higher risk of COVID‐19 (adjusted hazard ratio [HR] 1.25 [95% confidence interval (95% CI) 1.13–1.39] ) and a higher risk of COVID‐19 hospitalization or death (adjusted HR 1.35 [95% CI 1.10–1.66]) as compared to non‐RA controls. Use of disease‐modifying antirheumatic drugs and prednisone, as well as self‐reported Black race, self‐reported Hispanic ethnicity, and presence of several chronic conditions, but not seropositivity for RA autoantibodies, were each associated with risk of COVID‐19 and severe COVID‐19 (hospitalization or death). Conclusion Patients with RA are at higher risk of developing COVID‐19 and severe COVID‐19 (leading to hospitalization or death) compared to those without RA. With a risk of COVID‐19 that approaches that of other recognized chronic conditions, these findings suggest that RA patients should be prioritized for COVID‐19 prevention and management strategies.
    Type of Medium: Online Resource
    ISSN: 2326-5191 , 2326-5205
    URL: Issue
    RVK:
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2754614-7
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  • 7
    Online Resource
    Online Resource
    SAGE Publications ; 2017
    In:  Health Informatics Journal Vol. 23, No. 1 ( 2017-03), p. 35-43
    In: Health Informatics Journal, SAGE Publications, Vol. 23, No. 1 ( 2017-03), p. 35-43
    Abstract: Utah’s Controlled Substance Database prescription registry does not include master identifiers to link records for individual patients. We describe and evaluate a linkage protocol for Utah’s Controlled Substance Database. Prescriptions (N = 22,401,506) dated 2005−2009 were linked using The Link King software and patient identifiers (e.g. names, dates of birth) for 2,232,725 patients. Review of 998 randomly selected record pairs classified 46 percent as definitely correct links and 54 percent as probably correct links. A correct link could not be confirmed for 〈 1 percent. None were classified as probably incorrect links or definitely incorrect links. Record set reviews (N = 100 patients/set for 10 set sizes, randomly selected) classified 27−49 percent as definitely correct links and 39−63 percent as probably correct links. Fewer had too little information to confirm a link (5%−22%) or were probably incorrect (0%−6%). None were definitely incorrect. Overall, results suggest that Utah’s Controlled Substance Database records were correctly linked. These data may be useful for cross-sectional and longitudinal studies of patient-controlled substance prescription histories.
    Type of Medium: Online Resource
    ISSN: 1460-4582 , 1741-2811
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2017
    detail.hit.zdb_id: 2070802-6
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  • 8
    In: Journal of Bone and Joint Surgery, Ovid Technologies (Wolters Kluwer Health), Vol. 102, No. 12 ( 2020-6-17), p. 1050-1058
    Abstract: For stage-II scapholunate advanced collapse (SLAC) and scaphoid nonunion advanced collapse (SNAC) patterns of wrist arthritis, the optimal method of surgical treatment remains unclear. Previous literature has demonstrated similar clinical outcomes between proximal row carpectomy (PRC) and 4-corner arthrodesis (FCA), making the risk of reoperation a focus of particular interest. In the present study, the primary null hypothesis was that there would be no difference in the rate of conversion to total wrist arthrodesis between PRC and FCA. Additionally, we hypothesized that the rate of secondary surgical procedures would be similar between the 2 procedures. Methods: The national Veterans Health Administration Corporate Data Warehouse was utilized to identify 2,449 patients who underwent either PRC or FCA between 1992 and 2016. With use of operative reports to identify the arthritis pattern, only cases of stage-II SLAC/SNAC were included. All complications and subsequent surgical procedures were confirmed by manual chart review. Propensity score analyses with matching weights were utilized to balance the PRC and FCA cohorts. The rates of conversion to wrist arthrodesis and secondary surgical procedures were calculated. Results: Of the 1,168 patients with stage-II SLAC/SNAC arthritis, 933 wrists underwent PRC and 257 wrists underwent FCA. Ten-year survival free of total wrist arthrodesis in the matching PRC (251 procedures) and FCA (251 procedures) cohorts was 94.3% (95% confidence interval [CI], 92.3% to 96.3%) and 94.1% (95% CI, 90.8% to 97.4%), respectively. Survival free of a secondary surgical procedure other than wrist arthrodesis was 99.7% (95% CI, 99.3% to 100.0%) for PRC and 83.5% (95% CI, 78.2% to 88.8%) for FCA. Conclusions: PRC and FCA demonstrated similarly low rates of conversion to total wrist arthrodesis. In contrast, the rate of secondary surgical procedures following FCA was significantly higher compared with PRC. Given the historically similar clinical outcomes between PRC and FCA, the results of the present study show that PRC may be a preferable treatment for stage-II SLAC/SNAC wrist arthritis. Level of Evidence: Therapeutic Level III . See Instructions for Authors for a complete description of levels of evidence.
    Type of Medium: Online Resource
    ISSN: 0021-9355 , 1535-1386
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    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
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  • 9
    In: Arthritis Research & Therapy, Springer Science and Business Media LLC, Vol. 22, No. 1 ( 2020-12)
    Abstract: A previous analysis of the Veterans Affairs Rheumatoid Arthritis (VARA) registry showed that more than half of the patients with rheumatoid arthritis (RA) did not receive a major therapeutic change (MTC) despite moderate or severe disease activity. We aimed to empirically determine disease activity thresholds associated with a decision by rheumatologists and nurse practitioners to institute a MTC in patients with RA and to report the impact of that change on RA disease activity. Methods We analyzed data from the VARA registry between January 1, 2006, and September 30, 2017. Eligible patients had a visit with 3 disease activity measures (DAMs) recorded: Disease Activity Score for 28 joints (DAS28), Clinical Disease Activity Index (CDAI), and Routine Assessment of Patient Index Data 3 (RAPID3). The Youden Index was used to identify disease activity thresholds that best discriminated rheumatologist/nurse practitioner decision to initiate MTC. Clinical outcome was 20% improvement in the American College of Rheumatology criteria (ACR20 response). The effect of MTC on ACR20 response was presented as crude descriptive statistics and evaluated using G-computation for marginal and conditional effects with established disease activity level combined with an empirical threshold from Youden analysis. Results The study population comprised 1776 patients (12,094 visits: 3077 with MTC, 9017 without MTC). Empirical thresholds (95% bootstrap confidence interval with 1000 replications) for MTC were 4.03 (3.70–4.36) for DAS28, 12.9 (10.4–15.4) for CDAI, and 3.81 (3.32–4.30) for RAPID3. Visits with MTC had increased likelihood of ACR20 response: risk ratios for ACR20 response for visits with MTC vs without MTC ranged 1.2–2.6 across DAMs; risk differences ranged 0.2–14.5%. Conclusions MTC was associated with clinical improvement across all DAMs with the greatest change in patients with RA disease activity above the Youden threshold identified in this work. Trial registration VARA Registry, https://www.hsrd.research.va.gov/research/abstracts.cfm?Project_ID=2141698764
    Type of Medium: Online Resource
    ISSN: 1478-6362
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2020
    detail.hit.zdb_id: 2041668-4
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  • 10
    In: Pharmacoepidemiology and Drug Safety, Wiley, Vol. 33, No. 1 ( 2024-01)
    Abstract: To develop a natural language processing (NLP) tool to extract forced vital capacity (FVC) values from electronic health record (EHR) notes in patients with rheumatoid arthritis‐interstitial lung disease (RA‐ILD). Methods We selected RA‐ILD patients ( n = 7485) in the Veterans Health Administration (VA) between 2000 and 2020 using validated ICD‐9/10 codes. We identified numeric values in proximity to FVC string patterns from clinical notes in the EHR. Subsequently, we performed processing steps to account for variability in note structure, related pulmonary function test (PFT) output, and values copied across notes, then assigned dates from linked administrative procedure records. NLP‐derived FVC values were compared to values recorded directly from PFT equipment available on a subset of patients. Results We identified 5911 FVC values ( n = 1844 patients) from PFT equipment and 15 383 values ( n = 4982 patients) by NLP. Among 2610 date‐matched FVC values from NLP and PFT equipment, 95.8% of values were within 5% predicted. The mean (SD) difference was 0.09% (5.9), and values strongly correlated ( r = 0.94, p 〈 0.001), with a precision of 0.87 (95% CI 0.86, 0.88). NLP captured more patients with longitudinal FVC values ( n = 3069 vs. n = 1164). Mean (SD) change in FVC %‐predicted per year was similar between sources (−1.5 [30.0] NLP vs. −0.9 [16.6] PFT equipment; standardized response mean = 0.05 for both). Conclusions NLP of EHR notes increases the capture of accurate, longitudinal FVC values by three‐fold over PFT equipment. Use of this NLP tool can facilitate pharmacoepidemiologic research in RA‐ILD and other lung diseases by capturing this critical measure of disease severity.
    Type of Medium: Online Resource
    ISSN: 1053-8569 , 1099-1557
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2024
    detail.hit.zdb_id: 1491218-1
    SSG: 15,3
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