Table 2 Median change in body mass index (BMI) and total body fat percentage before and during the COVID-19 pandemic in relation to sociodemographic and lifestyle factors (n = 1 004)

Parental occupation³

 Blue-collar worker

86

0.95

2.19

0.009

1.70

5.00

0.01

51

0.63

2.81

0.89

0.70

5.90

0.25

 White-collar worker

531

0.43

2.11

0.70

5.10

323

0.54

1.89

1.50

4.30

Parent born outside of Scandinavia

 No

482

0.43

2.16

0.18

0.85

5.20

0.61

311

0.50

1.99

0.06

1.30

4.50

0.07

 Yes

86

0.57

2.16

1.1

5.10

42

1.01

2.92

2.30

3.80

Education⁴

 Elementary school/high school

357

0.56

2.30

0.10

1.10

5.30

0.07

243

0.67

2.04

0.31

1.60

3.80

0.47

 University/college

265

0.40

1.98

0.60

5.00

134

0.38

2.02

1.25

4.00

Occupation⁴

 Studying

365

0.40

2.07

0.46

0.60

5.00

0.08

211

0.56

2.45

0.73

1.50

5.00

0.73

 Working

226

0.50

2.10

1.05

4.90

135

0.57

1.49

1.50

3.50

 Other

32

1.02

2.78

0.95

6.55

33

0.72

2.39

0.70

5.60

BMI status⁴

 Underweight

38

0.78

1.57

0.01

2.85

4.00

0.002

16

1.14

1.29

0.10

3.00

5.25

0.046

 Normal weight

469

0.36

1.98

0.70

5.30

271

0.57

2.05

1.50

4.50

 Overweight

97

0.84

3.10

0.60

5.30

79

0.33

2.37

0.80

4.70

 Obese

20

1.36

5.50

1.00

5.70

14

0.88

3.93

0.90

3.40

Smoking⁴

 No

498

0.46

2.05

0.32

0.80

5.10

0.46

317

0.60

1.97

0.10

1.40

4.10

0.11

 Yes

125

0.48

2.53

1.00

5.40

62

0.64

2.28

2.05

5.30

Snuff use⁴

 No

583

0.48

2.09

0.01

0.90

5.00

0.02

291

0.54

2.20

0.24

1.40

4.70

0.20

 Yes

40

-0.42

3.60

-1.30

8.30

88

0.75

1.67

2.10

3.85

Physical activity level⁴

 Low/moderate

256

0.47

2.17

0.95

0.75

4.60

0.42

123

0.77

2.19

0.17

1.40

4.50

0.78

 High

269

0.36

2.08

1.00

5.30

204

0.50

1.87

1.40

4.30