Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Original Article
  • Published:

Multiples and parents of multiples prefer same arm randomization of siblings in neonatal trials

A Corrigendum to this article was published on 27 March 2015

Abstract

Objective:

Although common among Neonatal Intensive Care Units, multiples births are randomized inconsistently within trials, which can impact enrollment, analytical approach and trial outcomes. It is not known what randomization approach (same arm, different arm and independent randomization) is preferred by multiples and their families.

Study design:

Surveys distributed to parents of multiples and adult multiples addressed the preferences on randomization by eliciting the most desired method and likelihood of enrolling twins for each randomization approach.

Result:

Populations included 209 parents and 321 adult multiples. Seventy-eight percent of parents and 59% of multiples prefer same arm placement of multiples over other methods (both P<0.001), which also had highest likelihood of enrollment among both the groups.

Conclusion:

Parents of multiples and adult multiples prefer placement of multiples into same treatment arm in randomized trials, making such methodology a potential way to optimize consent rates while ethically approaching human subject research.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Figure 1

Similar content being viewed by others

References

  1. Hibbs AM, Black D, Palermo L, Cnaan A, Luan X, Truog WE et al. Accounting for multiple births in neonatal and perinatal trials: systematic review and case study. J Pediatr 2010; 156: 202–208.

    Article  Google Scholar 

  2. Chauhan SP . Twins: prevalence, problems, and preterm births. Am J Obstet Gynecol 2010; 203: 305–315.

    Article  Google Scholar 

  3. Gates S, Brocklehurst P . How should randomised trials including multiple pregnancies be analysed?. BJOG 2004; 111: 213–219.

    Article  Google Scholar 

  4. Heo M, Leon AC . Comparison of statistical methods for analysis of clustered binary observations. Stat Med 2005; 24: 911–923.

    Article  Google Scholar 

  5. Yelland LN, Saltera AB, Ryan P, Makrides M . Analysis of binary outcomes from randomised trials including multiple births: when should clustering be taken into account?. Paediatr Perinat Epidemiol 2011; 25: 283–297.

    Article  Google Scholar 

  6. Shaffer ML, Kunselman AR, Watterberg KL . Analysis of neonatal clinical trials with twin births. BMC Med Res Methodol 2009; 9: 1–8.

    Article  Google Scholar 

  7. Marston L, Peacock JL, Yuc K, Brocklehurst P, Calvert SA, Greenough A et al. Comparing methods of analysing datasets with small clusters: case studies using four paediatric datasets. Paediatr Perinat Epidemiol 2009; 23: 380–392.

    Article  Google Scholar 

  8. The Readability Test Tool [homepage on the Internet]. Cited May 22, 2014 Available from http://read-able.com/.

  9. Kodish E, Eder M, Noll RB, Ruccione K, Lange B, Angiolillo A et al. Communication of randomization in childhood leukemia trials. JAMA 2004; 291: 470–475.

    Article  CAS  Google Scholar 

  10. Emanuel EJ, Wendler D, Grady C . What makes clinical research ethical?. JAMA 2000; 283: 2701–2711.

    Article  CAS  Google Scholar 

  11. Jonsen A, Siegler M, Winslade W . Clinical Ethics: A Practical Approach to Ethical Decisions in Clinical Medicine. McGraw Hill: New York, 2002.

    Google Scholar 

  12. Kodish E . Informed consent for pediatric research: is it really possible? J Pediatr 2003; 142: 89–90.

    Article  Google Scholar 

  13. Snowdon C, Garrcia J, Elbourne D . Making sense of randomization; responses of parents of critically ill babies to random allocation of treatment in a clinical trial. Soc Sci Med 1997; 45: 1337–1355.

    Article  CAS  PubMed  Google Scholar 

  14. Robinson EJ, Kerra C, Stevens A, Lilford R, Braunholtz D, Edwards S . Lay conceptions of the ethical and scientific justifications for randomallocation in clinical trials. Soc Sci Med 2004; 58: 811–824.

    Article  Google Scholar 

Download references

Acknowledgements

We would like to thank all organizations who helped distribute the survey and all survey participants for their valued assistance and insight. ResearchMatch is funded in part by the National Institutes of Health (NIH) Clinical and Translational Science Award (CTSA) program, grants UL1TR000445 and 1U54RR032646-01. The Clinical and Translational Science Collaborative (CTSC) grant supports (UL1TR000439) RedCap databases.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to J Bernardo.

Ethics declarations

Competing interests

The authors declare no conflict of interest.

Additional information

Supplementary Information accompanies the paper on the Journal of Perinatology website

Supplementary information

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Bernardo, J., Nowacki, A., Martin, R. et al. Multiples and parents of multiples prefer same arm randomization of siblings in neonatal trials. J Perinatol 35, 208–213 (2015). https://doi.org/10.1038/jp.2014.192

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/jp.2014.192

This article is cited by

Search

Quick links