Willem H Collier

Title(s)Assistant Professor Of Clinical Population and Public Health Sciences
SchoolKeck School of Medicine of Usc
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    I am an Assistant Professor of Clinical Population and Public Health Sciences in the Division of Biostatistics of the Department of Population and Public Health Sciences at the University of California. Before joining USC, I completed undergraduate degrees in mathematics and economics and a PhD in Population Health Sciences with an emphasis in Biostatistics at the University of Utah. I support the design, conduct, and analysis of pediatric cancer clinical trials of the Children's Oncology Group, where I focus on cancer control, late effects, and cellular therapy trials. I also work on statistical methods for the evaluation of surrogate endpoints and collaborate with the Chronic Kidney DIsease Epidemiology Collaboration for my work in this area.

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Handling missing within-study correlations in the evaluation of surrogate endpoints. Stat Med. 2023 Nov 20; 42(26):4738-4762. Collier W, Haaland B, Inker L, Greene T. PMID: 37845797.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    2. A meta-analysis of GFR slope as a surrogate endpoint for kidney failure. Nat Med. 2023 07; 29(7):1867-1876. Inker LA, Collier W, Greene T, Miao S, Chaudhari J, Appel GB, Badve SV, Caravaca-Fontán F, Del Vecchio L, Floege J, Goicoechea M, Haaland B, Herrington WG, Imai E, Jafar TH, Lewis JB, Li PKT, Maes BD, Neuen BL, Perrone RD, Remuzzi G, Schena FP, Wanner C, Wetzels JFM, Woodward M, Heerspink HJL, CKD-EPI Clinical Trials Consortium. PMID: 37330614.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    3. Change in Albuminuria and GFR Slope as Joint Surrogate End Points for Kidney Failure: Implications for Phase 2 Clinical Trials in CKD. J Am Soc Nephrol. 2023 06 01; 34(6):955-968. Heerspink HJL, Inker LA, Tighiouart H, Collier WH, Haaland B, Luo J, Appel GB, Chan TM, Estacio RO, Fervenza F, Floege J, Imai E, Jafar TH, Lewis JB, Kam-Tao Li P, Locatelli F, Maes BD, Perna A, Perrone RD, Praga M, Schena FP, Wanner C, Xie D, Greene T, on behalf of CKD-EPI CT . PMID: 36918388; PMCID: PMC10278784.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansCTClinical Trials
    4. Evaluation of Variation in the Performance of GFR Slope as a Surrogate End Point for Kidney Failure in Clinical Trials that Differ by Severity of CKD. Clin J Am Soc Nephrol. 2023 02 01; 18(2):183-192. Collier W, Inker LA, Haaland B, Appel GB, Badve SV, Caravaca-Fontán F, Chalmers J, Floege J, Goicoechea M, Imai E, Jafar TH, Lewis JB, Li PKT, Locatelli F, Maes BD, Neuen BL, Perrone RD, Remuzzi G, Schena FP, Wanner C, Heerspink HJL, Greene T, Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI)*. PMID: 36754007; PMCID: PMC10103374.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    5. Characteristics of Nonelderly Adult Health Care Persistent Super Utilizers in Utah. Popul Health Manag. 2022 08; 25(4):472-479. Luo J, Collier W, Magno-Padron D, Tieman J, Pires G, Moss W, Rosales M, Kim J, Agarwal JP, Kwok AC. PMID: 35353618.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    6. Patient-reported opioid use for tissue expander-based breast reconstruction. J Plast Reconstr Aesthet Surg. 2021 Nov; 74(11):2899-2905. Van Boerum MS, Mann SL, Veith JP, Collier W, Hosein RC, Manum JS, Agarwal J, Kwok AC. PMID: 34078588.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    7. The Rate of Infectious Complications After Intrathecal Drug Delivery System Implant for Cancer-Related Pain Is Low Despite Frequent Concurrent Anticancer Treatment or Leukopenia. Anesth Analg. 2020 07; 131(1):280-287. Sindt JE, Larsen SD, Dalley AP, Collier WH, Brogan SE. PMID: 31990731.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    8. A Comparison of Common Plastic Surgery Operations Using the NSQIP and TOPS Databases. Plast Reconstr Surg Glob Open. 2020 May; 8(5):e2841. Veith J, Collier W, Simpson A, Magno-Padron D, Mast B, Murphy RX, Agarwal J, Kwok A. PMID: 33133901; PMCID: PMC7572021.
      View in: PubMed   Mentions: 1  
    9. A Nationwide Analysis of Early and Late Readmissions following Free Tissue Transfer for Breast Reconstruction. J Reconstr Microsurg. 2020 Jul; 36(6):450-457. Magno-Padron DA, Collier W, Kim J, Agarwal JP, Kwok AC. PMID: 32172527.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    10. 2011 ACGME Duty Hour Limits had No Association With Breast Reconstruction Complications. J Surg Res. 2020 03; 247:469-478. Simpson AM, Kwok AC, Collier WH, Kim J, Veith J, Agarwal JP. PMID: 31668433.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    11. Examining the relationship between epidural steroid injections and patient satisfaction. Spine J. 2020 02; 20(2):207-212. Mordhorst TR, McCormick ZL, Presson AP, Collier WH, Spiker WR. PMID: 31563577.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    12. Are 30-Day Outcomes Enough? Late Infectious Readmissions following Prosthetic-Based Breast Reconstruction. Plast Reconstr Surg. 2019 09; 144(3):360e-368e. Collier W, Scheefer Van Boerum M, Kim J, Kwok AC. PMID: 31461001.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    13. Direct Comparison of Patient-completed and Physician-completed Caprini Scores for Plastic Surgery Patients. Plast Reconstr Surg Glob Open. 2019 Aug; 7(8):e2363. Veith J, Collier W, Rockwell WB, Pannucci C. PMID: 31592033; PMCID: PMC6756651.
      View in: PubMed   Mentions: 2  
    14. A national analysis of readmissions for wound healing complications following the repair of lower back, hip, and buttock pressure ulcers using the Nationwide Readmissions Database. Am J Surg. 2019 04; 217(4):658-663. Veith JP, Collier W, Kim J, Agarwal J, Kwok A. PMID: 30638726.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
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