Maternal cell phone use during pregnancy and child cognition at age 5â¯years in 3 birth cohorts.
Environ Int
; 120: 155-162, 2018 11.
Article
in En
| MEDLINE
| ID: mdl-30096609
BACKGROUND: There have been few studies of children's cognitive development in relation to mothers' cell phone use, and most were limited to outcomes at age 3â¯years or younger. We examined the relationship between maternal cell phone use during pregnancy and cognitive performance in 5-year old children. METHODS: This study included data from 3 birth cohorts: the Danish National Birth Cohort (DNBC) (nâ¯=â¯1209), Spanish Environment and Childhood Project (INMA) (nâ¯=â¯1383), and Korean Mothers and Children's Environment Health Study (MOCEH) (nâ¯=â¯497). All cohorts collected information about maternal cell phone use during pregnancy and cognitive performance in children at age 5. We performed linear regression to compute mean differences (MD) and 95% confidence intervals (CI) in children's general, verbal, and non-verbal cognition scores comparing frequency of maternal prenatal cell phone use with adjustments for numerous potential confounding factors. Models were computed separately for each cohort and using pooled data in meta-analysis. RESULTS: No associations were detected between frequency of prenatal cell phone use and children's cognition scores. Scores tended to be lower in the highest frequency of use category; MD (95% CI) in general cognition scores were 0.78 (-0.76, 2.33) for none, 0.11 (-0.81, 1.03) for medium, and -0.41 (-1.54, 0.73) for high compared to low frequency of use. This pattern was seen across all cognitive dimensions, but the results were imprecise overall. CONCLUSION: We observed patterns of lower mean cognition scores among children in relation to high frequency maternal prenatal cell phone use. The causal nature and mechanism of this relationship remain unknown.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Prenatal Exposure Delayed Effects
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Child Development
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Cognition
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Cell Phone Use
Type of study:
Etiology_studies
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Incidence_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limits:
Child
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Female
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Humans
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Pregnancy
Language:
En
Journal:
Environ Int
Year:
2018
Document type:
Article