Guyatt, Gordon H.

A consumer's guide to subgroup analyses

Oxman, A. D., & Guyatt, G. H. (1992) · Annals of Internal Medicine

Statistical Methods in Clinical TrialsMeta-analysis and systematic reviews

Cited by 914

Development of the instrument to assess the credibility of effect modification analyses (ICEMAN) in randomized controlled trials and meta-analyses

Schandelmaier, S., Briel, M., Varadhan, R., Schmid, C. H., Devasenapathy, N., Hayward, R. A., Gagnier, J., Borenstein, M., van der Heijden, G. J. M. G., Dahabreh, I. J., et al. (2020) · Canadian Medical Association Journal

Meta-analysis and systematic reviewsStatistical Methods in Clinical Trials

Cited by 749

Responsiveness and validity in health status measurement: a clarification

Guyatt, G. H., Deyo, R. A., Charlson, M., Levine, M. N., & Mitchell, A. (1989) · Journal of Clinical Epidemiology

Health Systems, Economic Evaluations, Quality of LifeCancer survivorship and care

Cited by 480

Compelling evidence from meta-epidemiological studies demonstrates overestimation of effects in randomized trials that fail to optimize randomization and blind patients and outcome assessors

Wang, Y., Parpia, S., Couban, R., Wang, Q., Armijo-Olivo, S., Bassler, D., Briel, M., Brignardello-Petersen, R., Gluud, L. L., Keitz, S. A., et al. (2024) · Journal of Clinical Epidemiology

Meta-analysis and systematic reviewsStatistical Methods in Clinical Trials

Cited by 58

Intravenous Vitamin C for Patients Hospitalized With COVID-19: Two Harmonized Randomized Clinical Trials

The LOVIT-COVID Investigators, O. B. O. T. C. C. C. T. G., Florescu, S., Stanciu, D., Zaharia, M., Kosa, A., Codreanu, D., Fareed, K., Kidwai, A., Kaye, C., Coutts, A., et al. (2023) · JAMA

Vitamin C and Antioxidants ResearchCOVID-19 Clinical Research Studies

Cited by 55

An analysis of protocols and publications suggested that most discontinuations of clinical trials were not based on preplanned interim analyses or stopping rules

Stegert, M., Kasenda, B., von Elm, E., You, J. J., Blümle, A., Tomonaga, Y., Saccilotto, R., Amstutz, A., Bengough, T., Briel, M., et al. (2016) · Journal of Clinical Epidemiology

Statistical Methods in Clinical TrialsMeta-analysis and systematic reviews

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