Corrected analysis of "the effects of bright light treatment on affective symptoms in people with dementia: a 24-week cluster randomized controlled trial" that accounts for clustering and nesting verifies conclusions.
Journal
BMC psychiatry
ISSN: 1471-244X
Titre abrégé: BMC Psychiatry
Pays: England
ID NLM: 100968559
Informations de publication
Date de publication:
20 09 2023
20 09 2023
Historique:
received:
04
05
2023
accepted:
11
09
2023
medline:
22
9
2023
pubmed:
21
9
2023
entrez:
20
9
2023
Statut:
epublish
Résumé
In this correspondence, we explain the reasoning for invalidity of the analysis choices by Kolberg et al., and provide the results produced using correct statistical procedures for their study design. Reassuringly, we could verify the original conclusions. That is, results of the corrected statistical models are similar to the results of the original analysis. Regardless of the magnitude of difference that corrected statistical methods make, results and conclusions that are derived from invalid methods are unsubstantiated. By verifying the results, we allow the readers to be assured that the published conclusions in the study by Kolberg et al. now rest on a sound evidential basis.
Identifiants
pubmed: 37730572
doi: 10.1186/s12888-023-05180-2
pii: 10.1186/s12888-023-05180-2
pmc: PMC10510221
doi:
Types de publication
Randomized Controlled Trial
Letter
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
683Subventions
Organisme : NIDDK NIH HHS
ID : R25 DK099080
Pays : United States
Organisme : NHLBI NIH HHS
ID : R25 HL124208
Pays : United States
Organisme : NIA NIH HHS
ID : U24 AG056053
Pays : United States
Organisme : NIA NIH HHS
ID : P30 AG050886
Pays : United States
Informations de copyright
© 2023. BioMed Central Ltd., part of Springer Nature.
Références
Kolberg E, Hjetland GJ, Thun E, Pallesen S, Nordhus IH, Husebo BS, et al. The effects of bright light treatment on affective symptoms in people with dementia: a 24-week cluster randomized controlled trial. BMC Psychiatry. 2021;21(1):377. https://doi.org/10.1186/s12888-021-03376-y .
doi: 10.1186/s12888-021-03376-y
pubmed: 34320937
pmcid: 8317398
Brown AW, Li P, Bohan Brown MM, Kaiser KA, Keith SW, Oakes JM, et al. Best (but oft-forgotten) practices: designing, analyzing, and reporting cluster randomized controlled trials. Am J Clin Nutr. 2015;102(2):241–8. https://doi.org/10.3945/ajcn.114.105072 .
doi: 10.3945/ajcn.114.105072
pubmed: 26016864
pmcid: 4515862
Murray DM, Varnell SP, Blitstein JL. Design and Analysis of Group-Randomized Trials: A Review of Recent Methodological Developments. Am J Public Health. 2004;94(3):423–32. https://doi.org/10.2105/AJPH.94.3.423 .
doi: 10.2105/AJPH.94.3.423
pubmed: 14998806
pmcid: 1448268
National Institutes of Health. Research Methods Resources: Group- or Cluster-Randomized Trials (GRTs). Available from: https://researchmethodsresources.nih.gov/methods/grt .
Rasch D, Guiard V. (2004). The robustness of parametric statistical methods. Psychology Science, 46(2), 175–208.Available from: https://psycnet.apa.org/record/2004-19989-001 .