{"doi":"10.1002/mrm.22438","title":"Reactions of young children to the MRI scanner environment","abstract":"<jats:title>Abstract</jats:title><jats:p>Seventy children aged 2 to 7 years were exposed to the MRI environment through a series of steps typical of a research study. Their willingness to proceed through the process was used to estimate the prevalence of fear. Thirty‐seven children (53%; 95% confidence interval [41%, 65%]) completed the approach sequence. Although the correlation of child age in months (Mean (<jats:italic>M</jats:italic>) = 60.1, standard deviation = 16.5, <jats:italic>N</jats:italic> = 70) and highest successful step (<jats:italic>M</jats:italic> = 5.8, standard deviation = 2.6, 95% confidence interval [5.2, 6.4]) completed was not statistically significant at the 0.05 level, <jats:italic>r</jats:italic> (68) = 0.21, <jats:italic>P</jats:italic> = 0.08, 95% confidence interval [−0.03, 0.42], the proportion of children aged 6‐7 years who successfully completed all steps (14 of 21, 67%, 95% confidence interval [50%, 84%]) was significantly different from the proportion of children aged 2‐3 years who completed all steps (six of 23, 26%, 95% confidence interval [11%, 41%]) (Fisher's exact test, two‐tailed <jats:italic>P</jats:italic> = 0.0148). A failure rate of at least 50% should be included into group size calculations when performing studies with young children (2‐7 years), in addition to motion and other experimental factors. Magn Reson Med, 2010. © 2010 Wiley‐Liss, Inc.</jats:p>","journal":"Magnetic Resonance in Medicine","year":2010,"id":604144,"datarank":0.49983067652628066,"base_score":3.332204510175204,"endowment":3.332204510175204,"self_citation_contribution":0.49983067652628066,"citation_network_contribution":0.0,"self_endowment_contribution":0.49983067652628066,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":27,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1549977,"name":"Toby Martin","orcid":null,"position":1,"is_corresponding":false},{"id":1549979,"name":"Deborah Shiloff","orcid":null,"position":2,"is_corresponding":false},{"id":1549981,"name":"Dickie C. T. Yu","orcid":null,"position":3,"is_corresponding":false},{"id":1549975,"name":"Krisztina L. Malisza","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Reactions of young children to the MRI scanner environment","abstract":"<jats:title>Abstract</jats:title><jats:p>Seventy children aged 2 to 7 years were exposed to the MRI environment through a series of steps typical of a research study. Their willingness to proceed through the process was used to estimate the prevalence of fear. Thirty‐seven children (53%; 95% confidence interval [41%, 65%]) completed the approach sequence. Although the correlation of child age in months (Mean (<jats:italic>M</jats:italic>) = 60.1, standard deviation = 16.5, <jats:italic>N</jats:italic> = 70) and highest successful step (<jats:italic>M</jats:italic> = 5.8, standard deviation = 2.6, 95% confidence interval [5.2, 6.4]) completed was not statistically significant at the 0.05 level, <jats:italic>r</jats:italic> (68) = 0.21, <jats:italic>P</jats:italic> = 0.08, 95% confidence interval [−0.03, 0.42], the proportion of children aged 6‐7 years who successfully completed all steps (14 of 21, 67%, 95% confidence interval [50%, 84%]) was significantly different from the proportion of children aged 2‐3 years who completed all steps (six of 23, 26%, 95% confidence interval [11%, 41%]) (Fisher's exact test, two‐tailed <jats:italic>P</jats:italic> = 0.0148). A failure rate of at least 50% should be included into group size calculations when performing studies with young children (2‐7 years), in addition to motion and other experimental factors. 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