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Items: 1 to 50 of 90

1.

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

Herbert E, Julious SA, Goodacre S.

Trials. 2019 Aug 9;20(1):493. doi: 10.1186/s13063-019-3578-y.

2.

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

Cook JA, Julious SA, Sones W, Hampson LV, Hewitt C, Berlin JA, Ashby D, Emsley R, Fergusson DA, Walters SJ, Wilson ECF, MacLennan G, Stallard N, Rothwell JC, Bland M, Brown L, Ramsay CR, Cook A, Armstrong D, Altman D, Vale LD.

BMJ. 2018 Nov 5;363:k3750. doi: 10.1136/bmj.k3750. No abstract available.

3.

Development process of a consensus-driven CONSORT extension for randomised trials using an adaptive design.

Dimairo M, Coates E, Pallmann P, Todd S, Julious SA, Jaki T, Wason J, Mander AP, Weir CJ, Koenig F, Walton MK, Biggs K, Nicholl J, Hamasaki T, Proschan MA, Scott JA, Ando Y, Hind D, Altman DG.

BMC Med. 2018 Nov 16;16(1):210. doi: 10.1186/s12916-018-1196-2.

4.

Calculation of confidence intervals for a finite population size.

Julious SA.

Pharm Stat. 2019 Jan;18(1):115-122. doi: 10.1002/pst.1901. Epub 2018 Nov 8.

PMID:
30411472
5.

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

Cook JA, Julious SA, Sones W, Hampson LV, Hewitt C, Berlin JA, Ashby D, Emsley R, Fergusson DA, Walters SJ, Wilson ECF, Maclennan G, Stallard N, Rothwell JC, Bland M, Brown L, Ramsay CR, Cook A, Armstrong D, Altman D, Vale LD.

Trials. 2018 Nov 5;19(1):606. doi: 10.1186/s13063-018-2884-0.

6.

Choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial - the development of the DELTA2 guidance.

Sones W, Julious SA, Rothwell JC, Ramsay CR, Hampson LV, Emsley R, Walters SJ, Hewitt C, Bland M, Fergusson DA, Berlin JA, Altman D, Vale LD, Cook JA.

Trials. 2018 Oct 10;19(1):542. doi: 10.1186/s13063-018-2887-x.

7.

A study of target effect sizes in randomised controlled trials published in the Health Technology Assessment journal.

Rothwell JC, Julious SA, Cooper CL.

Trials. 2018 Oct 10;19(1):544. doi: 10.1186/s13063-018-2886-y.

8.

Open-label, cluster randomised controlled trial and economic evaluation of a brief letter from a GP on unscheduled medical contacts associated with the start of the school year: the PLEASANT trial.

Julious SA, Horspool MJ, Davis S, Franklin M, Smithson WH, Norman P, Simpson RM, Elphick H, Bortolami O, Cooper C.

BMJ Open. 2018 Apr 20;8(4):e017367. doi: 10.1136/bmjopen-2017-017367.

9.

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

Bell ML, Whitehead AL, Julious SA.

Clin Epidemiol. 2018 Jan 18;10:153-157. doi: 10.2147/CLEP.S146397. eCollection 2018.

10.

Are pilot trials useful for predicting randomisation and attrition rates in definitive studies: A review of publicly funded trials.

Cooper CL, Whitehead A, Pottrill E, Julious SA, Walters SJ.

Clin Trials. 2018 Apr;15(2):189-196. doi: 10.1177/1740774517752113. Epub 2018 Jan 23.

11.
12.

Choosing the target difference ('effect size') for a randomised controlled trial - DELTA2 guidance protocol.

Cook JA, Julious SA, Sones W, Rothwell JC, Ramsay CR, Hampson LV, Emsley R, Walters SJ, Hewitt C, Bland M, Fergusson DA, Berlin JA, Altman D, Vale LD.

Trials. 2017 Jun 12;18(1):271. doi: 10.1186/s13063-017-1969-5. Review.

13.

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 SJ, Bonacho Dos Anjos Henriques-Cadby I, Bortolami O, Flight L, Hind D, Jacques RM, Knox C, Nadin B, Rothwell J, Surtees M, Julious SA.

BMJ Open. 2017 Mar 20;7(3):e015276. doi: 10.1136/bmjopen-2016-015276. Review.

14.

PLEASANT: Preventing and Lessening Exacerbations of Asthma in School-age children Associated with a New Term - a cluster randomised controlled trial and economic evaluation.

Julious SA, Horspool MJ, Davis S, Bradburn M, Norman P, Shephard N, Cooper CL, Smithson WH, Boote J, Elphick H, Loban A, Franklin M, Kua WS, May R, Campbell J, Williams R, Rex S, Bortolami O.

Health Technol Assess. 2016 Dec;20(93):1-154. doi: 10.3310/hta20930.

15.

Automated telephone communication systems for preventive healthcare and management of long-term conditions.

Posadzki P, Mastellos N, Ryan R, Gunn LH, Felix LM, Pappas Y, Gagnon MP, Julious SA, Xiang L, Oldenburg B, Car J.

Cochrane Database Syst Rev. 2016 Dec 14;12:CD009921. doi: 10.1002/14651858.CD009921.pub2. Review.

16.

Corrections: The disagreeable behaviour of the kappa statistic.

Flight L, Julious SA.

Pharm Stat. 2017 Jan;16(1):95. doi: 10.1002/pst.1795. Epub 2016 Dec 2. No abstract available.

17.

Can emergency medicine research benefit from adaptive design clinical trials?

Flight L, Julious SA, Goodacre S.

Emerg Med J. 2017 Apr;34(4):243-248. doi: 10.1136/emermed-2016-206046. Epub 2016 Oct 28.

18.

Pilot Studies in clinical research.

Julious SA.

Stat Methods Med Res. 2016 Jun;25(3):995-6. doi: 10.1177/0962280216651022. No abstract available.

19.

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

Hatfield I, Allison A, Flight L, Julious SA, Dimairo M.

Trials. 2016 Mar 19;17(1):150. doi: 10.1186/s13063-016-1273-9. Review.

20.
21.

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

Cameron D, Epton T, Norman P, Sheeran P, Harris PR, Webb TL, Julious SA, Brennan A, Thomas C, Petroczi A, Naughton D, Shah I.

Trials. 2015 Dec 7;16:555. doi: 10.1186/s13063-015-1092-4.

22.

Practical guide to sample size calculations: non-inferiority and equivalence trials.

Flight L, Julious SA.

Pharm Stat. 2016 Jan-Feb;15(1):80-9. doi: 10.1002/pst.1716. Epub 2015 Nov 25.

23.

Practical guide to sample size calculations: superiority trials.

Flight L, Julious SA.

Pharm Stat. 2016 Jan-Feb;15(1):75-9. doi: 10.1002/pst.1718. Epub 2015 Nov 20.

24.

Practical guide to sample size calculations: an introduction.

Flight L, Julious SA.

Pharm Stat. 2016 Jan-Feb;15(1):68-74. doi: 10.1002/pst.1709. Epub 2015 Nov 20.

25.

Preventing and Lessening Exacerbations of Asthma in School-aged children Associated with a New Term (PLEASANT): Recruiting Primary Care Research Sites-the PLEASANT experience.

Horspool MJ, Julious SA, Mooney C, May R, Sully B, Smithson WH.

NPJ Prim Care Respir Med. 2015 Nov 12;25:15066. doi: 10.1038/npjpcrm.2015.66.

26.

An Investigation of the Shortcomings of the CONSORT 2010 Statement for the Reporting of Group Sequential Randomised Controlled Trials: A Methodological Systematic Review.

Stevely A, Dimairo M, Todd S, Julious SA, Nicholl J, Hind D, Cooper CL.

PLoS One. 2015 Nov 3;10(11):e0141104. doi: 10.1371/journal.pone.0141104. eCollection 2015. Review.

27.

Missing steps in a staircase: a qualitative study of the perspectives of key stakeholders on the use of adaptive designs in confirmatory trials.

Dimairo M, Boote J, Julious SA, Nicholl JP, Todd S.

Trials. 2015 Sep 28;16:430. doi: 10.1186/s13063-015-0958-9.

28.

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 AL, Julious SA, Cooper CL, Campbell MJ.

Stat Methods Med Res. 2016 Jun;25(3):1057-73. doi: 10.1177/0962280215588241. Epub 2015 Jun 19.

29.

The disagreeable behaviour of the kappa statistic.

Flight L, Julious SA.

Pharm Stat. 2015 Jan-Feb;14(1):74-8. doi: 10.1002/pst.1659. Epub 2014 Dec 3.

PMID:
25470361
30.

A survey of birth order status of students studying for medical degree at the University of Sheffield.

Clayton S, Apperley E, Hannon F, Karia A, Baxter V, Julious SA.

JRSM Open. 2014 Aug 11;5(9):2054270414533327. doi: 10.1177/2054270414533327. eCollection 2014 Sep.

31.

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

Epton T, Norman P, Dadzie AS, Harris PR, Webb TL, Sheeran P, Julious SA, Ciravegna F, Brennan A, Meier PS, Naughton D, Petroczi A, Kruger J, Shah I.

BMC Public Health. 2014 Jun 5;14:563. doi: 10.1186/1471-2458-14-563.

32.

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

Lee EC, Whitehead AL, Jacques RM, Julious SA.

BMC Med Res Methodol. 2014 Mar 20;14:41. doi: 10.1186/1471-2288-14-41.

33.

An investigation of the impact of futility analysis in publicly funded trials.

Sully BG, Julious SA, Nicholl J.

Trials. 2014 Feb 17;15:61. doi: 10.1186/1745-6215-15-61.

34.

The analysis of the use of 'unascertained' for sudden unexpected deaths in infancy from 1988 to 2010.

Crisp E, Julious SA.

Arch Dis Child. 2014 Mar;99(3):300-1. doi: 10.1136/archdischild-2013-305196. Epub 2013 Nov 21. No abstract available.

PMID:
24265413
35.

Preventing and lessening exacerbations of asthma in school-age children associated with a new term (PLEASANT): study protocol for a cluster randomised control trial.

Horspool MJ, Julious SA, Boote J, Bradburn MJ, Cooper CL, Davis S, Elphick H, Norman P, Smithson WH, VanStaa T.

Trials. 2013 Sep 16;14:297. doi: 10.1186/1745-6215-14-297.

36.
37.

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

Sully BG, Julious SA, Nicholl J.

Trials. 2013 Jun 9;14:166. doi: 10.1186/1745-6215-14-166. Review.

38.

Meta-analysis in clinical research.

Julious SA.

Stat Methods Med Res. 2013 Apr;22(2):115-6. doi: 10.1177/0962280213482391. No abstract available.

PMID:
23610156
39.

Estimating effect sizes for health-related quality of life outcomes.

Julious SA, Walters SJ.

Stat Methods Med Res. 2014 Oct;23(5):430-9. doi: 10.1177/0962280213476379. Epub 2013 Feb 19.

PMID:
23427222
40.

A theory-based online health behavior intervention for new university students: study protocol.

Epton T, Norman P, Sheeran P, Harris PR, Webb TL, Ciravegna F, Brennan A, Meier P, Julious SA, Naughton D, Petroczi A, Dadzie AS, Kruger J.

BMC Public Health. 2013 Feb 5;13:107. doi: 10.1186/1471-2458-13-107.

41.

Environmental triggers of hospital admissions for school-age children with asthma in two British cities.

Julious SA, Jain R, Mason S.

Emerg Med J. 2012 Oct;29(10):844-5. doi: 10.1136/emermed-2011-114546. Erratum in: Emerg Med J. 2013 Jul;30(7):602.

PMID:
23038718
42.

Tutorial in biostatistics: sample sizes for parallel group clinical trials with binary data.

Julious SA, Campbell MJ.

Stat Med. 2012 Oct 30;31(24):2904-36. doi: 10.1002/sim.5381. Epub 2012 Jun 19.

43.

Influence of adaptive analysis on unnecessary patient recruitment: reanalysis of the RATPAC trial.

Sutton L, Julious SA, Goodacre SW.

Ann Emerg Med. 2012 Oct;60(4):442-8.e1. doi: 10.1016/j.annemergmed.2012.03.032. Epub 2012 May 25.

PMID:
22632776
44.

Sample sizes for trials involving multiple correlated must-win comparisons.

Julious SA, McIntyre NE.

Pharm Stat. 2012 Mar-Apr;11(2):177-85. doi: 10.1002/pst.515. Epub 2012 Mar 1.

PMID:
22383136
45.

Efficacy and suicidal risk for antidepressants in paediatric and adolescent patients.

Julious SA.

Stat Methods Med Res. 2013 Apr;22(2):190-218. doi: 10.1177/0962280211432210. Epub 2012 Jan 19.

PMID:
22267546
46.

Statistical issues in drug development.

Julious SA.

Stat Methods Med Res. 2011 Dec;20(6):577-8. doi: 10.1177/0962280211419739. No abstract available.

PMID:
22198946
47.

Investigating the assumption of homogeneity of treatment effects in clinical studies with application to meta-analysis.

Julious SA, Whitehead A.

Pharm Stat. 2012 Jan-Feb;11(1):49-56. doi: 10.1002/pst.494. Epub 2011 Dec 2.

PMID:
22140032
48.

Seasonality of medical contacts in school-aged children with asthma: association with school holidays.

Julious SA, Campbell MJ, Bianchi SM, Murray-Thomas T.

Public Health. 2011 Nov;125(11):769-76. doi: 10.1016/j.puhe.2011.08.005. Epub 2011 Oct 28.

PMID:
22036686
49.

Time to end the non-inferiority complex?

Julious SA.

Pharm Stat. 2011 Sep-Oct;10(5):393-4. doi: 10.1002/pst.519. Epub 2011 Sep 16. No abstract available.

PMID:
21928355
50.

The ABC of non-inferiority margin setting from indirect comparisons.

Julious SA.

Pharm Stat. 2011 Sep-Oct;10(5):448-53. doi: 10.1002/pst.517. Epub 2011 Sep 16.

PMID:
21928354

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