Julious, Steven A

Sample size of 12 per group rule of thumb for a pilot study

Julious, S. A. (2005) · Pharmaceutical Statistics

Statistical Methods in Clinical TrialsStatistical Methods in Epidemiology

Cited by 3,068

Estimating the sample size for a pilot randomised trial to minimise the overall trial sample size for the external pilot and main trial for a continuous outcome variable

Whitehead, A. L., Julious, S. A., Cooper, C. L., & Campbell, M. J. (2016) · Statistical Methods in Medical Research

Statistical Methods in Clinical TrialsStatistical Methods in Epidemiology

Cited by 1,936

Reducing waste from incomplete or unusable reports of biomedical research

Glasziou, P., Altman, D. G., Bossuyt, P., Boutron, I., Clarke, M., Julious, S., Michie, S., Moher, D., & Wager, E. (2014) · The Lancet

Meta-analysis and systematic reviewsAcademic Publishing and Open Access

Cited by 1,319

An audit of sample sizes for pilot and feasibility trials being undertaken in the United Kingdom registered in the United Kingdom Clinical Research Network database

Billingham, S. A., Whitehead, A. L., & Julious, S. A. (2013) · BMC Medical Research Methodology

Statistical Methods in Clinical TrialsMeta-analysis and systematic reviews

Cited by 962

Sample sizes for clinical trials with normal data.

Julious, S. A. (2004) · Statistics in Medicine

Statistical Methods in Clinical TrialsProbability and Statistical Research

Cited by 605

Recruitment and retention of participants in randomised controlled trials: a review of trials funded and published by the United Kingdom Health Technology Assessment Programme

Walters, S. J., Bonacho dos Anjos Henriques-Cadby, I., Bortolami, O., Flight, L., Hind, D., Jacques, R. M., Knox, C., Nadin, B., Rothwell, J., Surtees, M., et al. (2017) · BMJ Open

Ethics in Clinical ResearchStatistical Methods in Clinical Trials

Cited by 560

Estimating sample sizes for binary, ordered categorical, and continuous outcomes in two group comparisons

Campbell, M. J., Julious, S. A., & Altman, D. G. (1995) · BMJ

Statistical Methods in Clinical TrialsStatistical Methods in Epidemiology

Cited by 476

The statistical interpretation of pilot trials: should significance thresholds be reconsidered?

Lee, E. C., Whitehead, A. L., Jacques, R. M., & Julious, S. A. (2014) · BMC Medical Research Methodology

Statistical Methods in Clinical TrialsStatistical Methods and Bayesian Inference

Cited by 423

A reinvestigation of recruitment to randomised, controlled, multicenter trials: a review of trials funded by two UK funding agencies

Sully, B. G. O., Julious, S. A., & Nicholl, J. (2013) · Trials

Ethics in Clinical ResearchStatistical Methods in Clinical Trials

Cited by 410

CONSORT Harms 2022 statement, explanation, and elaboration: updated guideline for the reporting of harms in randomised trials

Junqueira, D. R., Zorzela, L., Golder, S., Loke, Y., Gagnier, J. J., Julious, S. A., Li, T., Mayo-Wilson, E., Pham, B., Phillips, R., et al. (2023) · BMJ

Meta-analysis and systematic reviewsStatistical Methods in Clinical Trials

Cited by 281

Guidance for using pilot studies to inform the design of intervention trials with continuous outcomes

Bell, M. L., Whitehead, A. L., & Julious, S. A. (2018) · Clinical Epidemiology

Statistical Methods in Clinical TrialsStatistical Methods in Epidemiology

Cited by 280

Self-managed, computerised speech and language therapy for patients with chronic aphasia post-stroke compared with usual care or attention control (Big CACTUS): a multicentre, single-blinded, randomised controlled trial

Palmer, R., Dimairo, M., Cooper, C., Enderby, P., Brady, M., Bowen, A., Latimer, N., Julious, S., Cross, E., Alshreef, A., et al. (2019) · The Lancet Neurology

Neurobiology of Language and BilingualismStroke Rehabilitation and Recovery

Cited by 200

DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial

Cook, J. A., Julious, S. A., Sones, W., Hampson, L. V., Hewitt, C., Berlin, J. A., Ashby, D., Emsley, R., Fergusson, D. A., Walters, S. J., et al. (2018) · Trials

Statistical Methods in Clinical TrialsMeta-analysis and systematic reviews

Cited by 197

Confounding and Simpson's paradox

Julious, S. A., & Mullee, M. A. (1994) · BMJ

Peripheral Artery Disease ManagementStatistical Methods in Epidemiology

Cited by 179

Computer Therapy Compared With Usual Care for People With Long-Standing Aphasia Poststroke: A Pilot Randomized Controlled Trial

Palmer, R., Enderby, P., Cooper, C., Latimer, N., Julious, S., Paterson, G., Dimairo, M., Dixon, S., Mortley, J., Hilton, R., et al. (2012) · Stroke

Neurobiology of Language and BilingualismStroke Rehabilitation and Recovery

Cited by 150

DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial

Cook, J. A., Julious, S. A., Sones, W., Hampson, L. V., Hewitt, C., Berlin, J. A., Ashby, D., Emsley, R., Fergusson, D. A., Walters, S. J., et al. (2018) · BMJ

Statistical Methods in Clinical TrialsMeta-analysis and systematic reviews

Cited by 148

Measurement in clinical trials: A neglected issue for statisticians?

Senn, S., & Julious, S. (2009) · Statistics in Medicine

Statistical Methods in Clinical TrialsStatistical Methods in Epidemiology

Cited by 136

Two-sided confidence intervals for the single proportion: comparison of seven methods by Robert G. Newcombe,Statistics in Medicine 1998;17:857–872

Julious, S. A. (2005) · Statistics in Medicine

Probability and Statistical ResearchStatistical Methods in Epidemiology

Cited by 111

Adaptive designs undertaken in clinical research: a review of registered clinical trials

Hatfield, I., Allison, A., Flight, L., Julious, S. A., & Dimairo, M. (2016) · Trials

Statistical Methods in Clinical TrialsPharmaceutical studies and practices

Cited by 107

Investigating variability in patient response to treatment – a case study from a replicate cross-over study

Senn, S., Rolfe, K., & Julious, S. A. (2011) · Statistical Methods in Medical Research

Statistical Methods in Clinical TrialsOptimal Experimental Design Methods

Cited by 84

A theory-based online health behaviour intervention for new university students (U@Uni): results from a randomised controlled trial

Epton, T., Norman, P., Dadzie, A.-S., Harris, P. R., Webb, T. L., Sheeran, P., Julious, S. A., Ciravegna, F., Brennan, A., Meier, P. S., et al. (2014) · BMC Public Health

Behavioral Health and InterventionsSmoking Behavior and Cessation

Cited by 82

Progression criteria in trials with an internal pilot: an audit of publicly funded randomised controlled trials

Herbert, E., Julious, S. A., & Goodacre, S. (2019) · Trials

Statistical Methods in Clinical TrialsMeta-analysis and systematic reviews

Cited by 81

The disagreeable behaviour of the kappa statistic: L. Flight and S. A. Julious

Flight, L., & Julious, S. A. (2015) · Pharmaceutical Statistics

Reliability and Agreement in MeasurementStatistical Methods in Epidemiology

Cited by 77

CONSORT Harms 2022 statement, explanation, and elaboration: updated guideline for the reporting of harms in randomized trials

Junqueira, D. R., Zorzela, L., Golder, S., Loke, Y., Gagnier, J. J., Julious, S. A., Li, T., Mayo-Wilson, E., Pham, B., Phillips, R., et al. (2023) · Journal of Clinical Epidemiology

Meta-analysis and systematic reviewsStatistical Methods in Clinical Trials

Cited by 67