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BMC Pediatrics

Open Access

Erratum to: Family nurture intervention (FNI): methods and treatment protocol of a randomized controlled trial in the NICU

  • Martha G Welch1, 2, 3Email author,
  • Myron A Hofer1,
  • Susan A Brunelli1,
  • Raymond I Stark2,
  • Howard F Andrews4,
  • Judy Austin4,
  • Michael M Myers1, 2, 5 and
  • FNI Trial Group1, 2, 5, 6
BMC Pediatrics201212:107

Received: 29 June 2012

Accepted: 20 July 2012

Published: 25 July 2012

The original article was published in BMC Pediatrics 2012 12:14

Authors Correction:

1, § Department of Psychiatry, College of Physicians & Surgeons, 1051 Riverside Drive, Unit 40, New York, NY, 10032, USA

Text correction:

In our methods paper [1], we misstated the primary outcome variable, In addition, the power analyses on which the study Ns are based was not included in the article.

  1. (1)

    The single primary outcome variable of our study design was Length of Stay (LOS), the number of days in the intensive care unit from day of birth to day of discharge home. All measures described in the paper as primary outcomes are secondary outcomes, including those outcomes listed in Tables 1 and 2.

  2. (2)

    Previous studies that used LOS for evaluating interventions had total sample sizes of N = 128, 100, and 28, respectively [24]. To be conservative, we designated a total N = 150 to increase the prospect of statistical significance within a more acute population from our NICU (lower average birth weight and age) and to allow for attrition (including transfer to local level 2 NICUs). It was calculated that, for a significance level of alpha = .05, one hundred fifty infants would be sufficient to provide 80% power to detect a 5.3 day difference in length of hospital stay.



Authors’ Affiliations

Department of Psychiatry, College of Physicians & Surgeons
Department of Pediatrics, College of Physicians & Surgeons
Department of Pathology & Cell Biology, College of Physicians & Surgeons
Mailman School of Public Health, Columbia University
Department of Psychiatry, New York State Psychiatric Institute
Department of Psychology, Bronfman Science Center, Williams College


  1. Welch MG, Hofer MA, Brunelli SA, Stark RI, Andrews HF, Austin J, Myers MM, FNI Trial Group FN: Family nurture intervention (FNI): methods and treatment protocol of a randomized controlled trial in the NICU. BMC Pediatrics. 2012, 12 (1): 14-10.1186/1471-2431-12-14.View ArticlePubMedPubMed CentralGoogle Scholar
  2. Boo NY, Jamli FM: Short duration of skin-to-skin contact: effects on growth and breastfeeding. J Paediatr Child H. 2007, 43 (12): 831-836. 10.1111/j.1440-1754.2007.01198.x.View ArticleGoogle Scholar
  3. Gathwala G, Singh B, Balhara B: KMC facilitates mother baby attachment in low birth weight infants. Indian J Pediatr. 2008, 75 (1): 43-47. 10.1007/s12098-008-0005-x.View ArticlePubMedGoogle Scholar
  4. Ramanathan K, Paul VK, Deorari AK, Tanega U, George G: Kangaroo mother care in very low birth weight infants. Indian J Pediatr. 2001, 68 (11): 1019-1023. 10.1007/BF02722345.View ArticlePubMedGoogle Scholar
  5. Pre-publication history

    1. The pre-publication history for this paper can be accessed here:


© Welch et al.; licensee BioMed Central Ltd. 2012

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.