Childcare before age 6 and body mass index at age 7 years in a cohort of Danish children

Sara Neelon, C. Schmidt Morgen, M. Kamper-Jørgensen, E. Oken, M. W. Gillman, J. A. Gallis, T. I A Sørensen

Research output: Contribution to journalArticle

Abstract

Background: Previous studies show inconsistent associations between childcare and obesity. Aims: Our prior work demonstrated that childcare in infancy was associated with higher weight in a cohort of Danish children. Here, we extend this work and examine childcare through 6 years and body mass index (BMI) at age 7 years. Materials and Methods: We examined 24 714 children in the Danish National Birth Cohort who were also in the Childcare Database. We conducted multivariable linear regressions examining children prior to age 6, overall and by type (daycare, crèche, age-integrated and kindergarten), and BMI z-score at 7 years, stratifying on maternal socio-occupational status. Results: A total of 19 760 (80.0%) children attended childcare before age 6. Childcare prior to age 6 was associated with BMI z-score at 7 years (0.004 units per each additional 6 months of care; 95% CI: 0.001, 0.008; p = 0.01). Childcare in a kindergarten was the only type of care associated with BMI (0.009 units; 95% CI: 0.003, 0.02; p = 0.01). For children of higher socio-occupational status mothers, childcare was associated with a 0.008 unit increase in BMI (95% CI: 0.004, 0.01; p > 0.001). Conclusions: Childcare was weakly associated with later BMI. This relationship was more pronounced in children from higher socio-occupational status mothers and children in kindergarten care.

Original languageEnglish (US)
JournalPediatric obesity
DOIs
StateAccepted/In press - 2017

Fingerprint

Body Mass Index
Mothers
Linear Models
Obesity
Parturition
Databases
Weights and Measures

Keywords

  • Childcare
  • Danish National Birth Cohort
  • Denmark
  • Obesity

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Health Policy
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health

Cite this

Neelon, S., Schmidt Morgen, C., Kamper-Jørgensen, M., Oken, E., Gillman, M. W., Gallis, J. A., & Sørensen, T. I. A. (Accepted/In press). Childcare before age 6 and body mass index at age 7 years in a cohort of Danish children. Pediatric obesity. https://doi.org/10.1111/ijpo.12206

Childcare before age 6 and body mass index at age 7 years in a cohort of Danish children. / Neelon, Sara; Schmidt Morgen, C.; Kamper-Jørgensen, M.; Oken, E.; Gillman, M. W.; Gallis, J. A.; Sørensen, T. I A.

In: Pediatric obesity, 2017.

Research output: Contribution to journalArticle

Neelon, S, Schmidt Morgen, C, Kamper-Jørgensen, M, Oken, E, Gillman, MW, Gallis, JA & Sørensen, TIA 2017, 'Childcare before age 6 and body mass index at age 7 years in a cohort of Danish children', Pediatric obesity. https://doi.org/10.1111/ijpo.12206
Neelon, Sara ; Schmidt Morgen, C. ; Kamper-Jørgensen, M. ; Oken, E. ; Gillman, M. W. ; Gallis, J. A. ; Sørensen, T. I A. / Childcare before age 6 and body mass index at age 7 years in a cohort of Danish children. In: Pediatric obesity. 2017.
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abstract = "Background: Previous studies show inconsistent associations between childcare and obesity. Aims: Our prior work demonstrated that childcare in infancy was associated with higher weight in a cohort of Danish children. Here, we extend this work and examine childcare through 6 years and body mass index (BMI) at age 7 years. Materials and Methods: We examined 24 714 children in the Danish National Birth Cohort who were also in the Childcare Database. We conducted multivariable linear regressions examining children prior to age 6, overall and by type (daycare, cr{\`e}che, age-integrated and kindergarten), and BMI z-score at 7 years, stratifying on maternal socio-occupational status. Results: A total of 19 760 (80.0{\%}) children attended childcare before age 6. Childcare prior to age 6 was associated with BMI z-score at 7 years (0.004 units per each additional 6 months of care; 95{\%} CI: 0.001, 0.008; p = 0.01). Childcare in a kindergarten was the only type of care associated with BMI (0.009 units; 95{\%} CI: 0.003, 0.02; p = 0.01). For children of higher socio-occupational status mothers, childcare was associated with a 0.008 unit increase in BMI (95{\%} CI: 0.004, 0.01; p > 0.001). Conclusions: Childcare was weakly associated with later BMI. This relationship was more pronounced in children from higher socio-occupational status mothers and children in kindergarten care.",
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N2 - Background: Previous studies show inconsistent associations between childcare and obesity. Aims: Our prior work demonstrated that childcare in infancy was associated with higher weight in a cohort of Danish children. Here, we extend this work and examine childcare through 6 years and body mass index (BMI) at age 7 years. Materials and Methods: We examined 24 714 children in the Danish National Birth Cohort who were also in the Childcare Database. We conducted multivariable linear regressions examining children prior to age 6, overall and by type (daycare, crèche, age-integrated and kindergarten), and BMI z-score at 7 years, stratifying on maternal socio-occupational status. Results: A total of 19 760 (80.0%) children attended childcare before age 6. Childcare prior to age 6 was associated with BMI z-score at 7 years (0.004 units per each additional 6 months of care; 95% CI: 0.001, 0.008; p = 0.01). Childcare in a kindergarten was the only type of care associated with BMI (0.009 units; 95% CI: 0.003, 0.02; p = 0.01). For children of higher socio-occupational status mothers, childcare was associated with a 0.008 unit increase in BMI (95% CI: 0.004, 0.01; p > 0.001). Conclusions: Childcare was weakly associated with later BMI. This relationship was more pronounced in children from higher socio-occupational status mothers and children in kindergarten care.

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