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32 results

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Page 1
Development and Validation of Claims-Based Definitions to Identify Incident and Prevalent Inflammatory Bowel Disease in Administrative Healthcare Databases.
Dawwas GK, Weiss A, Constant BD, Parlett LE, Haynes K, Yang JY, Brensinger C, Wu Q, Pate V, Jonsson Funk M, Schaubel DE, Hurtado-Lorenzo A, David Kappelman M, Lewis JD. Dawwas GK, et al. Inflamm Bowel Dis. 2023 Dec 5;29(12):1993-1996. doi: 10.1093/ibd/izad053. Inflamm Bowel Dis. 2023. PMID: 37043675 Free PMC article. Review.
METHODS: We used data from Medicare, Medicaid, and the HealthCore Integrated Research Database (Anthem commercial and Medicare Advantage claims). The gold standard for validation was review of medical records. We evaluated 1 incidence and 4 prevalence algorithms based on a …
METHODS: We used data from Medicare, Medicaid, and the HealthCore Integrated Research Database (Anthem commercial and Medicare Advantage cla …
Development and validation of a 5-year mortality prediction model using regularized regression and Medicare data.
Lund JL, Kuo TM, Brookhart MA, Meyer AM, Dalton AF, Kistler CE, Wheeler SB, Lewis CL. Lund JL, et al. Pharmacoepidemiol Drug Saf. 2019 May;28(5):584-592. doi: 10.1002/pds.4769. Epub 2019 Mar 19. Pharmacoepidemiol Drug Saf. 2019. PMID: 30891850 Free PMC article.
Model performance was assessed and compared with the Gagne comorbidity score in the 20% validation sample. RESULTS: Overall, 183 204 (24%) individuals died. In addition to demographics, 161 indicators of comorbidity and function were included in the final model. In the …
Model performance was assessed and compared with the Gagne comorbidity score in the 20% validation sample. RESULTS: Overall, 183 204 …
Validation of algorithms in studies based on routinely collected health data: general principles.
Ehrenstein V, Hellfritzsch M, Kahlert J, Langan SM, Urushihara H, Marinac-Dabic D, Lund JL, Sørensen HT, Benchimol EI. Ehrenstein V, et al. Am J Epidemiol. 2024 Nov 4;193(11):1612-1624. doi: 10.1093/aje/kwae071. Am J Epidemiol. 2024. PMID: 38754870
In this paper, we aim to systematize terminology, methods, and practical considerations relevant to the conduct of validation studies of RWD-based algorithms. We discuss measures of algorithm accuracy, gold/reference standards, study size, prioritization of accuracy measur …
In this paper, we aim to systematize terminology, methods, and practical considerations relevant to the conduct of validation studies …
Adjustments for unmeasured confounders in pharmacoepidemiologic database studies using external information.
Stürmer T, Glynn RJ, Rothman KJ, Avorn J, Schneeweiss S. Stürmer T, et al. Med Care. 2007 Oct;45(10 Supl 2):S158-65. doi: 10.1097/MLR.0b013e318070c045. Med Care. 2007. PMID: 17909375 Free PMC article. Review.
CONCLUSIONS: Estimates of drug effects can be adjusted for confounders that are not available in the main, but can be measured in a validation study. PSC uses validation data without information on disease outcome under a strong assumption. The collection and integr …
CONCLUSIONS: Estimates of drug effects can be adjusted for confounders that are not available in the main, but can be measured in a valid …
Legal Admissibility of the Competence Assessment for Standing Trial for Defendants with Mental Retardation (CAST-MR).
Wood ME, Brown KP, Bitting AR, Slobogin C, Bowerman B. Wood ME, et al. J Pers Assess. 2022 Mar-Apr;104(2):289-301. doi: 10.1080/00223891.2021.1951742. Epub 2021 Jul 23. J Pers Assess. 2022. PMID: 34296978 Review.
Although it remains the only validated instrument for this population, previous research has suggested it is rarely used by forensic examiners, a finding our survey of legal cases confirms. Initial validation studies provided some support for the instrument's reliability a …
Although it remains the only validated instrument for this population, previous research has suggested it is rarely used by forensic examine …
Data linkage in pharmacoepidemiology: A call for rigorous evaluation and reporting.
Pratt NL, Mack CD, Meyer AM, Davis KJ, Hammill BG, Hampp C, Setoguchi S, Raman SR, Chun DS, Stürmer T, Lund JL. Pratt NL, et al. Pharmacoepidemiol Drug Saf. 2020 Jan;29(1):9-17. doi: 10.1002/pds.4924. Epub 2019 Nov 17. Pharmacoepidemiol Drug Saf. 2020. PMID: 31736248
RESULTS: A key aspect of data linkage evaluation for pharmacoepidemiology is to articulate how a linkage process was performed and its accuracy in terms of validation and verification of the resulting linked data. This study generates a checklist, which covers domains incl …
RESULTS: A key aspect of data linkage evaluation for pharmacoepidemiology is to articulate how a linkage process was performed and its accur …
Pulmonary artery enlargement and cystic fibrosis pulmonary exacerbations: a cohort study.
Wells JM, Farris RF, Gosdin TA, Dransfield MT, Wood ME, Bell SC, Rowe SM. Wells JM, et al. Lancet Respir Med. 2016 Aug;4(8):636-645. doi: 10.1016/S2213-2600(16)30105-9. Epub 2016 Jun 10. Lancet Respir Med. 2016. PMID: 27298019 Free PMC article.
Our validation cohort included adult patients with cystic fibrosis who had CT imaging performed between Jan 1, 2002, and Dec 31, 2014. ...We used Cox regression to determine the time to first exacerbation in the validation cohort. FINDINGS: 37 (50%) of 74 patients i …
Our validation cohort included adult patients with cystic fibrosis who had CT imaging performed between Jan 1, 2002, and Dec 31, 2014 …
Propensity score calibration in the absence of surrogacy.
Lunt M, Glynn RJ, Rothman KJ, Avorn J, Stürmer T. Lunt M, et al. Am J Epidemiol. 2012 Jun 15;175(12):1294-302. doi: 10.1093/aje/kwr463. Epub 2012 Apr 24. Am J Epidemiol. 2012. PMID: 22688682 Free PMC article.
Propensity score calibration (PSC) can be used to adjust for unmeasured confounders using a cross-sectional validation study that lacks information on the disease outcome (Y), under a strong surrogacy assumption. ...The authors conclude that the bias from PSC observed in c …
Propensity score calibration (PSC) can be used to adjust for unmeasured confounders using a cross-sectional validation study that lac …
32 results