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Body mass index, prudent diet score, and social class across three generations: evidence from the Hertfordshire Intergenerational Study

Body mass index, prudent diet score, and social class across three generations: evidence from the Hertfordshire Intergenerational Study
Body mass index, prudent diet score, and social class across three generations: evidence from the Hertfordshire Intergenerational Study
Background Studies describing body mass index (BMI) and prudent diet score have reported that they are associated between parents and children. The Hertfordshire Intergenerational Study, which contains BMI, diet and social class information across three generations, provides an opportunity to consider the influence of grandparental and parental BMI and prudent diet score across multiple generations, and the influence of grandparental and parental social class on child BMI.

Methods Linear regressions examining the tracking of adult BMI and prudent diet score across three generations (grandparent (F0), parent (F1) and child (F2)) were run from parent to child and from grandparent to grandchild. Linear mixed models investigated the influence of F0 and F1 BMI or prudent diet score on F2 BMI and prudent diet score. Linear regressions were run to determine whether social class and prudent diet score of parents and grandparents influenced the BMI of children and grandchildren.

Results BMI was significantly associated across each generational pair and from F0 to F1 in multilevel models. Prudent diet score was significantly positively associated between grandparents and grandchildren. Lower grandparental and parental social class had a significantly positive association with F2 BMI (F0 low social class: b=1.188 kg/m2, 95% CI 0.060 to 2.315, p=0.039; F1 middle social class: b=2.477 kg/m2, 95% CI 0.726 to 4.227, p=0.006).

Conclusion Adult BMI tracks across generations of the Hertfordshire Intergenerational Study, and child BMI is associated with parental and grandparental social class. The results presented here add to literature supporting behavioural and social factors in the transmission of BMI across generations.
dietary patterns, microbiome, musculo-skeletal health, nutrient deficiencies
36-41
Carter, Sarah
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Parsons, Camille
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Ward, Kate
39bd4db1-c948-4e32-930e-7bec8deb54c7
Clynes, Michael
b860d3b7-12ee-42b8-8cd5-1e1abfccbee2
Dennison, Elaine
ee647287-edb4-4392-8361-e59fd505b1d1
Cooper, Cyrus
e05f5612-b493-4273-9b71-9e0ce32bdad6
Carter, Sarah
a5111bba-b67c-47ec-b74a-b0bcef477fe6
Parsons, Camille
9730e5c3-0382-4ed7-8eaa-6932ab09ec15
Ward, Kate
39bd4db1-c948-4e32-930e-7bec8deb54c7
Clynes, Michael
b860d3b7-12ee-42b8-8cd5-1e1abfccbee2
Dennison, Elaine
ee647287-edb4-4392-8361-e59fd505b1d1
Cooper, Cyrus
e05f5612-b493-4273-9b71-9e0ce32bdad6

Carter, Sarah, Parsons, Camille, Ward, Kate, Clynes, Michael, Dennison, Elaine and Cooper, Cyrus (2021) Body mass index, prudent diet score, and social class across three generations: evidence from the Hertfordshire Intergenerational Study. BMJ Nutrition, Prevention & Health, 4 (1), 36-41. (doi:10.1136/bmjnph-2020-000178).

Record type: Article

Abstract

Background Studies describing body mass index (BMI) and prudent diet score have reported that they are associated between parents and children. The Hertfordshire Intergenerational Study, which contains BMI, diet and social class information across three generations, provides an opportunity to consider the influence of grandparental and parental BMI and prudent diet score across multiple generations, and the influence of grandparental and parental social class on child BMI.

Methods Linear regressions examining the tracking of adult BMI and prudent diet score across three generations (grandparent (F0), parent (F1) and child (F2)) were run from parent to child and from grandparent to grandchild. Linear mixed models investigated the influence of F0 and F1 BMI or prudent diet score on F2 BMI and prudent diet score. Linear regressions were run to determine whether social class and prudent diet score of parents and grandparents influenced the BMI of children and grandchildren.

Results BMI was significantly associated across each generational pair and from F0 to F1 in multilevel models. Prudent diet score was significantly positively associated between grandparents and grandchildren. Lower grandparental and parental social class had a significantly positive association with F2 BMI (F0 low social class: b=1.188 kg/m2, 95% CI 0.060 to 2.315, p=0.039; F1 middle social class: b=2.477 kg/m2, 95% CI 0.726 to 4.227, p=0.006).

Conclusion Adult BMI tracks across generations of the Hertfordshire Intergenerational Study, and child BMI is associated with parental and grandparental social class. The results presented here add to literature supporting behavioural and social factors in the transmission of BMI across generations.

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Accepted/In Press date: 17 December 2020
e-pub ahead of print date: 6 January 2021
Keywords: dietary patterns, microbiome, musculo-skeletal health, nutrient deficiencies

Identifiers

Local EPrints ID: 446592
URI: http://eprints.soton.ac.uk/id/eprint/446592
PURE UUID: e81d820f-2ae0-4998-a0bb-dee4cdb6d4c3
ORCID for Kate Ward: ORCID iD orcid.org/0000-0001-7034-6750
ORCID for Michael Clynes: ORCID iD orcid.org/0000-0001-7597-7658
ORCID for Elaine Dennison: ORCID iD orcid.org/0000-0002-3048-4961
ORCID for Cyrus Cooper: ORCID iD orcid.org/0000-0003-3510-0709

Catalogue record

Date deposited: 15 Feb 2021 17:33
Last modified: 26 Nov 2021 03:05

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Contributors

Author: Sarah Carter
Author: Camille Parsons
Author: Kate Ward ORCID iD
Author: Michael Clynes ORCID iD
Author: Elaine Dennison ORCID iD
Author: Cyrus Cooper ORCID iD

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