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James Carpenter

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Articles 102
Citations 5005
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Recent Articles
1.
Landray I, Carpenter J, Vahdani K, Miszkiel K, Ratnam L, Rose G
Ophthalmic Plast Reconstr Surg . 2025 Mar; PMID: 40081360
Purpose: To assess the reproducibility of subjective interpretation of computed x-ray tomography for 8 features associated with thyroid eye disease. Methods: Patients with confirmed thyroid eye disease had 3 distinct...
2.
Dodd M, Carpenter J, Thompson J, Williamson E, Fielding K, Elbourne D
Stat Med . 2024 Apr; 43(12):2314-2331. PMID: 38561927
Background: Non-inferiority trials comparing different active drugs are often subject to treatment non-adherence. Intention-to-treat (ITT) and per-protocol (PP) analyses have been advocated in such studies but are not guaranteed to...
3.
Sydes M, Murray M, Ahmed S, Apostolidou S, Bliss J, Bloomfield C, et al.
Contemp Clin Trials . 2024 Mar; 141:107514. PMID: 38537901
Background: Better use of healthcare systems data, collected as part of interactions between patients and the healthcare system, could transform planning and conduct of randomised controlled trials. Multiple challenges to...
4.
Carpenter J, Yarlagadda S, VandenHeuvel K, Ding L, Schuh M
Kidney Int Rep . 2024 Feb; 9(2):436-450. PMID: 38344733
Introduction: Human nephrogenesis is typically completed by 36 weeks gestation; however, it is impacted by preterm birth. Early studies suggested that nephrogenesis persisted for ≤40 postnatal days in preterm infants....
5.
Elliott M, Carroll O, Grieve R, Carpenter J
Stat Methods Med Res . 2023 Nov; 32(12):2365-2385. PMID: 37936293
Randomized trials have been the gold standard for assessing causal effects since their introduction by Fisher in the 1920s, since they can eliminate both observed and unobserved confounding. Estimates of...
6.
Tackney M, Williamson E, Cook D, Limb E, Harris T, Carpenter J
Stat Methods Med Res . 2023 Jul; 32(10):1936-1960. PMID: 37519214
Clinical trials that investigate physical activity interventions often use accelerometers to measure step count at a very granular level, for example in 5-second epochs. Participants typically wear the accelerometer for...
7.
Foltynie T, Gandhi S, Gonzalez-Robles C, Zeissler M, Mills G, Barker R, et al.
Brain . 2023 Mar; 146(7):2717-2722. PMID: 36856727
An increase in the efficiency of clinical trial conduct has been successfully demonstrated in the oncology field, by the use of multi-arm, multi-stage trials allowing the evaluation of multiple therapeutic...
8.
Viviani L, White I, Williamson E, Carpenter J, van der Meulen J, Cromwell D
J Clin Epidemiol . 2023 Feb; 157:35-45. PMID: 36806732
Objectives: We evaluated the error detection performance of the DetectDeviatingCells (DDC) algorithm which flags data anomalies at observation (casewise) and variable (cellwise) level in continuous variables. We compared its performance...
9.
Carpenter J, Kim H, Suarez J, van der Zande A, Miljkovic N
ACS Appl Mater Interfaces . 2022 Dec; 15(1):2429-2436. PMID: 36563177
The surface energy of graphene and its chemical derivatives governs fundamental interfacial interactions like molecular assembly, wetting, and doping. However, quantifying the surface energy of supported two-dimensional (2D) materials, such...
10.
Kahan B, Morris T, Goulao B, Carpenter J
Stat Med . 2022 Jun; 41(22):4299-4310. PMID: 35751568
Factorial trials offer an efficient method to evaluate multiple interventions in a single trial, however the use of additional treatments can obscure research objectives, leading to inappropriate analytical methods and...