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Table 4 Associations between exposures and changes in sedentary time, sleep and screen time

From: COVID-19 induced changes in physical activity patterns, screen time and sleep among Swedish adolescents - a cohort study

 

SEDENTARY TIME

SLEEP DURATION

SCREEN TIME

Weekdays change (min/day)

School time change (min/day)

Leisure time on weekdays change (min/day)

Weekend change (min/day)

Weekdays change (min/day)

Weekend change (min/day)

Weekdays change (min/day)

Weekend change (min/day)

β (95% CI)

β (95% CI)

β (95% CI)

β (95% CI)

β (95% CI)

β (95% CI)

β (95% CI)

β (95% CI)

Gendera

 Boys

REF

REF

REF

REF

REF

REF

REF

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 Girls

−7·28 (− 8·88, 25·02)

−7·12 (− 15·93, 0·30)

15·37 (− 0·57, 31·38)

− 9·66 (− 29·59, 17·84)

−17.91 (− 26.34, − 9.04)

− 2.97 (− 17.96, 8.08)

10.12 (− 9.63, 24.28)

8.93 (− 6.96, 23.82)

Parental education (SCB)a

 More than 12 years

REF

REF

REF

REF

REF

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 12 years or less

− 3·78 (− 23·46, 10·46)

−2·24 (− 11·45, 6·10)

−5·88 (− 22·92, 9·67)

12·36 (− 21·13, 40·18)

− 4.63 (− 14.23, 5.54)

−4.86 (− 19.58, 9.14)

21.33 (1.48, 37.83)

0.80 (− 19.86, 18.80)

Parents’ country of birth a

 Both born in Sweden

REF

REF

REF

REF

REF

REF

REF

REF

 One born outside Sweden

−16·13 (− 45·89, 6·52)

−4·79 (− 17·88, 6·63)

−12·84 (− 39·40, 10·77)

2·97 (− 24·52, 32·13)

− 5.59 (− 18.14, 6.44)

− 0.21 (− 20.21, 17.01)

8.66 (− 15.88, 35.54)

1.15 (− 19.37, 24.57)

 Both born outside Sweden

10·02 (− 8·95, 28·74)

7·05 (− 3·26, 17·80)

4·82 (− 12·35, 20·66)

17·18 (− 12·29, 46·17)

2.79 (− 7.52, 15.88)

13.62 (− 2.70, 32.11)

− 17.00 (− 41.17, − 0.36)

−1.11 (− 26.35, 15.86)

BMI categoriesb

 Normal weight/Underweight

REF

REF

REF

REF

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 Overweight/Obesity

11·85 (7·18, 29·47)

14·52 (4·69, 25·02)

−2·42 (− 22·59, 15·40)

−21·05 (− 54·59, 10·32)

0.19 (−10.60, 12.62)

−6.39 (− 22.82, 8.77)

−6.03 (− 25.27, 14.89)

−12.18 (− 33.21, 6.26)

BMI sdsb

4·33 (− 2·65, 9·94)

4·73 (1·78, 7·71)

− 1·15 (− 6·59, 4·59)

−1·48 (− 13·75, 8·35)

−1.53 (− 4.95, 2.38)

− 3.32 (− 8.39, 2.27)

3.03 (− 4.49, 9.17)

0.64 (− 6.38, 5.83)

Body fat in %b

0·65 (− 0·46, 1·85)

0·77 (0·21, 1·31)

−0·13 (− 1·23, 0·97)

− 0·68 (− 2·92, 1·08)

−0.08 (− 0.53, 0.55)

−0.30 (− 1.46, 0.82)

0.40 (−1.19, 1.28)

0.37 (− 0.94, 1.24)

Cardiovascular fitness (CVF)b

−1·76 (− 2·60, − 0·92)

−0·45 (− 0·97, 0·00)

−1·35 (− 2·16, − 0·44)

0·36 (− 1·34, 1·83)

0.26 (− 0.35, 0.75)

−0.07 (− 0.90, 0.69)

−1.20 (− 2.20, − 0.02)

−1.17 (− 2.24, − 0.11)

  1. aAdjusted for baseline values of the outcome
  2. bAdjusted for baseline values of the outcome, gender, and parental education
  3. Results in bold are significant at α < 0.05