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Table 1 Comparison of school-level characteristics for participating schools in Wave 0 and Wave 1

From: Accelerometer-measured physical activity and sedentary time among children and their parents in the UK before and after COVID-19 lockdowns: a natural experiment

 

Wave 0 (Pre-COVID-19)

Wave 1

n = 50

n = 23

School characteristics in 2021

Urban: N (%)

45

(90%)

19

(83%)

Local Authority N (%)

 Bath & North East Somerset

4

(8%)

3

(13%)

 Bristol

14

(28%)

6

(26%)

 North Somerset

12

(24%)

6

(26%)

 South Gloucester

20

(40%)

8

(35%)

School size: median (IQR)

231

(141)

236

(184)

School IMD score in 2015a: mean (SD)

16.7

(15.3)

13.7

(10.2)

School IDACI: mean (SD)

0.12

(0.11)

0.10

(0.08)

Free school meals %: median (IQR)

11.3%

(11.1%)

10.4%

(12.2%)

Average baseline pupil characteristics per school

 Average child age: mean (SD)

10.9

(0.2)

10.9

(0.2)

 Average % girls: mean (SD)

53%

(11%)

52%

(8%)

 Average % white British ethnicity: mean (SD)

85%

(13%)

88%

(7%)

 Average z-BMI: mean (SD)

0.40

(0.31)

0.29

(0.26)

 Average % degree + household education: mean (SD)

53%

(21%)

60%

(16%)

 Average pupil IMD: mean (SD)

16.8

(11.5)

14.7

(9.1)

 Average weekday min of MVPA: mean (SD)

57.9

(8.9)

60.0

(6.2)

 Average weekend min of MVPA: mean (SD)

52.1

(10.2)

52.7

(9.0)

  1. aIMD score: lower scores indicate higher deprivation
  2. Wave 0: Mar 2017-Jul 2018; Wave 1: May 2021-Dec 2021
  3. IMD Index of Multiple Deprivation, IDACI Income Deprivation Affecting Children Index, IQR inter-quartile range, SD standard deviation, z-BMI Body Mass Index standardised z-score, MVPA moderate-to-vigorous physical activity