Accelerometers / Bio-markers

Étude Longitudinale Française depuis l’Enfance (ELFE) provides children with an

accelerometer to measure their physical activity and sleep quality over the course of

seven days. The same is done during the 7-year-old wave of the Millennium Cohort

Study.

Height and weight were overwhelmingly the most popular physical measurements

collected in other cohort studies. Four studies – Southampton Women’s Survey, Born in

Bradford,German Health Interview and Examination Survey for Children and Adolescents

(KiGGS), and Early Childhood Longitudinal Study – also collected child head

circumference measurements. Southampton Women’s Survey measured mid-upper

arm, chest, waist, and hip circumference as well as resting blood pressure. Waist

circumference was also collected by Growing Up in Australia and KIGGS while ELFE

also measured mid-upper arm circumference. Lastly, three studies – Southampton

Women’s Survey, Born in Bradford, and ALSPAC – measured skinfold thickness.

Biomarkers are discussed in detail in Chapter 2, section 2.5.

6.6 Data Linkage Possibilities for Cohort 08 at 3