Use of mobile and cordless phones and change in cognitive function: a prospective cohort analysis of Australian primary school children

Abstract Background Some previous studies have suggested an association between children’s use of mobile phones (MPs)/cordless phones (CPs) and development of cognitive function. We evaluated possible longitudinal associations between the use of MPs and CPs in a cohort of primary school children and...

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Main Authors: Chhavi Raj Bhatt, Geza Benke, Catherine L. Smith, Mary Redmayne, Christina Dimitriadis, Anna Dalecki, Skye Macleod, Malcolm R. Sim, Rodney J. Croft, Rory Wolfe, Jordy Kaufman, Michael J. Abramson
Format: Article
Language:English
Published: BMC 2017-06-01
Series:Environmental Health
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12940-017-0250-4
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author Chhavi Raj Bhatt
Geza Benke
Catherine L. Smith
Mary Redmayne
Christina Dimitriadis
Anna Dalecki
Skye Macleod
Malcolm R. Sim
Rodney J. Croft
Rory Wolfe
Jordy Kaufman
Michael J. Abramson
author_facet Chhavi Raj Bhatt
Geza Benke
Catherine L. Smith
Mary Redmayne
Christina Dimitriadis
Anna Dalecki
Skye Macleod
Malcolm R. Sim
Rodney J. Croft
Rory Wolfe
Jordy Kaufman
Michael J. Abramson
author_sort Chhavi Raj Bhatt
collection DOAJ
description Abstract Background Some previous studies have suggested an association between children’s use of mobile phones (MPs)/cordless phones (CPs) and development of cognitive function. We evaluated possible longitudinal associations between the use of MPs and CPs in a cohort of primary school children and effects on their cognitive function. Methods Data on children’s socio-demographics, use of MPs and CPs, and cognitive function were collected at baseline (2010–2012) and follow-up (2012–2013). Cognitive outcomes were evaluated with the CogHealth™ test battery and Stroop Color-Word test. The change in the number of MP/CP voice calls weekly from baseline to follow-up was dichotomized: “an increase in calls” or a “decrease/no change in calls”. Multiple linear regression analyses, adjusting for confounders and clustering by school, were performed to evaluate the associations between the change in cognitive outcomes and change in MP and CP exposures. Results Of 412 children, a larger proportion of them used a CP (76% at baseline and follow-up), compared to a MP (31% at baseline and 43% at follow-up). Of 26 comparisons of changes in cognitive outcomes, four demonstrated significant associations. The increase in MP usage was associated with larger reduction in response time for response inhibition, smaller reduction in the number of total errors for spatial problem solving and larger increase in response time for a Stroop interference task. Except for the smaller reduction in detection task accuracy, the increase in CP usage had no effect on the changes in cognitive outcomes. Conclusion Our study shows that a larger proportion of children used CPs compared to MPs. We found limited evidence that change in the use of MPs or CPs in primary school children was associated with change in cognitive function.
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spelling doaj.art-39a6989bbc04440b9cae1c37d150a33f2022-12-21T17:42:58ZengBMCEnvironmental Health1476-069X2017-06-0116111010.1186/s12940-017-0250-4Use of mobile and cordless phones and change in cognitive function: a prospective cohort analysis of Australian primary school childrenChhavi Raj Bhatt0Geza Benke1Catherine L. Smith2Mary Redmayne3Christina Dimitriadis4Anna Dalecki5Skye Macleod6Malcolm R. Sim7Rodney J. Croft8Rory Wolfe9Jordy Kaufman10Michael J. Abramson11Centre for Population Health Research on Electromagnetic Energy (PRESEE), School of Public Health and Preventive Medicine, Monash UniversityCentre for Population Health Research on Electromagnetic Energy (PRESEE), School of Public Health and Preventive Medicine, Monash UniversityCentre for Population Health Research on Electromagnetic Energy (PRESEE), School of Public Health and Preventive Medicine, Monash UniversityCentre for Population Health Research on Electromagnetic Energy (PRESEE), School of Public Health and Preventive Medicine, Monash UniversityCentre for Population Health Research on Electromagnetic Energy (PRESEE), School of Public Health and Preventive Medicine, Monash UniversityAustralian Centre for Electromagnetic Bioeffects Research, School of Psychology, University of WollongongAustralian Centre for Electromagnetic Bioeffects Research, School of Psychology, University of WollongongCentre for Population Health Research on Electromagnetic Energy (PRESEE), School of Public Health and Preventive Medicine, Monash UniversityCentre for Population Health Research on Electromagnetic Energy (PRESEE), School of Public Health and Preventive Medicine, Monash UniversityCentre for Population Health Research on Electromagnetic Energy (PRESEE), School of Public Health and Preventive Medicine, Monash UniversitySchool of Health Sciences, Swinburne University of TechnologyCentre for Population Health Research on Electromagnetic Energy (PRESEE), School of Public Health and Preventive Medicine, Monash UniversityAbstract Background Some previous studies have suggested an association between children’s use of mobile phones (MPs)/cordless phones (CPs) and development of cognitive function. We evaluated possible longitudinal associations between the use of MPs and CPs in a cohort of primary school children and effects on their cognitive function. Methods Data on children’s socio-demographics, use of MPs and CPs, and cognitive function were collected at baseline (2010–2012) and follow-up (2012–2013). Cognitive outcomes were evaluated with the CogHealth™ test battery and Stroop Color-Word test. The change in the number of MP/CP voice calls weekly from baseline to follow-up was dichotomized: “an increase in calls” or a “decrease/no change in calls”. Multiple linear regression analyses, adjusting for confounders and clustering by school, were performed to evaluate the associations between the change in cognitive outcomes and change in MP and CP exposures. Results Of 412 children, a larger proportion of them used a CP (76% at baseline and follow-up), compared to a MP (31% at baseline and 43% at follow-up). Of 26 comparisons of changes in cognitive outcomes, four demonstrated significant associations. The increase in MP usage was associated with larger reduction in response time for response inhibition, smaller reduction in the number of total errors for spatial problem solving and larger increase in response time for a Stroop interference task. Except for the smaller reduction in detection task accuracy, the increase in CP usage had no effect on the changes in cognitive outcomes. Conclusion Our study shows that a larger proportion of children used CPs compared to MPs. We found limited evidence that change in the use of MPs or CPs in primary school children was associated with change in cognitive function.http://link.springer.com/article/10.1186/s12940-017-0250-4Cognitive functionCordless phone useMobile phone usePrimary school children
spellingShingle Chhavi Raj Bhatt
Geza Benke
Catherine L. Smith
Mary Redmayne
Christina Dimitriadis
Anna Dalecki
Skye Macleod
Malcolm R. Sim
Rodney J. Croft
Rory Wolfe
Jordy Kaufman
Michael J. Abramson
Use of mobile and cordless phones and change in cognitive function: a prospective cohort analysis of Australian primary school children
Environmental Health
Cognitive function
Cordless phone use
Mobile phone use
Primary school children
title Use of mobile and cordless phones and change in cognitive function: a prospective cohort analysis of Australian primary school children
title_full Use of mobile and cordless phones and change in cognitive function: a prospective cohort analysis of Australian primary school children
title_fullStr Use of mobile and cordless phones and change in cognitive function: a prospective cohort analysis of Australian primary school children
title_full_unstemmed Use of mobile and cordless phones and change in cognitive function: a prospective cohort analysis of Australian primary school children
title_short Use of mobile and cordless phones and change in cognitive function: a prospective cohort analysis of Australian primary school children
title_sort use of mobile and cordless phones and change in cognitive function a prospective cohort analysis of australian primary school children
topic Cognitive function
Cordless phone use
Mobile phone use
Primary school children
url http://link.springer.com/article/10.1186/s12940-017-0250-4
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