Timing of motor milestone achievement and development of overweight in childhood

Camilla Schmidt Morgen, Pernille Due, Anne-Marie Nybo Andersen, Thorkild I.A. Sørensen, Michael Gamorg, Sarah Benjamin Neelon

    Research output: Contribution to conference without publisher/journalPosterCommunication

    Abstract

    Background:
     Late achievement of motor milestones may increase the risk of overweight since early achievers
    have an increased opportunity to build lean body mass and expend energy.
     Overweight infants may have delayed achievement of gross motor milestones, as excess body fat
    limit mobility.
    Aim:
    1. To investigate whether delayed ability to sit and walk is associated with overweight at age 7 years
    2. To examine whether age (in months) at achieving the ability to sit and walk is associated with a
    higher BMI at age 7.
    3. To examine whether increasing weight at birth and at 5 months of age postpone the achievement
    of the ability to sit and walk independently.

    Methods:
    Data: The Danish National Birth Cohort. Study
    population consisted of 32,973 children who were
    followed from birth to age 7. Children were born
    between 1998 and 2003 and follow-up took place
    from 2003 to2010. Information on height and
    weight in infancy was obtained from the GP and
    information on motor milestone achievement and
    on height and weight age 7 years was reported by
    the parents.

    Data analysis: Logistic and linear regression.

    Results:
    Weight status in the study population, n=32,793
    1: Late ability to sit (>8 months) and to walk (>15 months)
    was not associated with overweight at age 7.
    Gender specific OR’s between:
    1.00; (CI 0.98-1.02) and 1.02; (CI 0.95-1.07)).
    2: Age of achievement of sitting and walking independently
    was weakly inverse associated with BMI at age 7.
    Gender specific BMI z-scores between: -0.029 (CI -0.038; -
    0.019) and -0.015 (CI -0.023; -0.006) which corresponds to a
    BMI in the range -0.3% to -0.2% at age 7 years.
    3: Increased birth weight (in 500 grams intervals) and BMI at
    5 months of age was weakly inverse associated with
    achievement of the ability to sit and walk independently
    β-coefficients between:
    -0.05 months; (CI -0.09; -0.01) and -0.08 months (CI -0.014; -
    0.02).

    Conclusions from our study:
    1) Delay in achievement of motor milestones does not predict later overweight among children.
    2) Age in month of achieving the ability to sit and walk independently does not predict a higher BMI at age 7
    3) Age of achieving motor milestones is largely independent of growth

    Original languageEnglish
    Publication dateAug 2011
    Publication statusPublished - Aug 2011
    EventIEA World Congress Epidemiology - Edinburgh, United Kingdom
    Duration: 7. Aug 201111. Aug 2011

    Conference

    ConferenceIEA World Congress Epidemiology
    Country/TerritoryUnited Kingdom
    CityEdinburgh
    Period07/08/201111/08/2011

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