Table 4 Median change in body mass index (BMI) and total body fat percentage before and during the COVID-19 pandemic in relation to self-reported change in lifestyle/health during the pandemic (n = 953)

Physical activity

 Reduced

250

0.64

2.16

0.02

1.10

4.90

0.003

118

0.94

2.19

0.04

2.05

4.40

0.03

 Unchanged

223

0.48

2.07

1.00

5.40

154

0.44

1.81

1.40

4.60

 Increased

127

0.17

2.53

-0.10

5.70

81

0.22

1.61

1.00

3.80

Sedentary time

 Reduced

52

0.06

2.18

0.11

-0.15

4.85

0.048

20

0.89

1.74

0.75

1.95

4.05

0.42

 Unchanged

212

0.21

2.08

0.75

5.45

129

0.47

1.70

1.10

4.30

 Increased

332

0.63

2.17

1.10

4.90

204

0.58

2.17

1.60

4.40

Healthy dietary habits

 Reduced

135

0.99

2.03

0.001

1.60

4.10

0.001

72

0.99

2.71

0.047

1.55

5.20

0.74

 Unchanged

359

0.29

2.10

0.60

6.00

215

0.42

1.89

1.40

4.10

 Increased

105

0.21

2.25

0.30

5.60

66

0.55

1.75

1.40

3.90

Alcohol intake

 Reduced

261

0.57

2.21

0.33

0.80

5.20

0.50

158

0.41

2.13

0.27

1.35

4.50

0.71

 Unchanged

263

0.38

2.13

0.90

5.40

148

0.70

1.99

1.45

4.40

 Increased

76

0.27

2.05

0.95

5.00

45

0.37

1.57

1.30

5.00

Stress

 Reduced

80

0.32

2.13

0.75

0.70

5.05

0.99

41

0.50

2.13

0.30

1.60

4.80

0.40

 Unchanged

272

0.47

1.97

0.90

4.95

204

0.47

1.87

1.40

4.05

 Increased

248

0.48

2.20

0.85

5.60

108

0.70

2.30

1.75

4.55

Sleep

 Reduced

84

0.72

1.89

0.71

1.15

5.70

0.50

59

0.70

2.43

0.54

1.30

5.40

0.90

 Unchanged

360

0.47

2.13

0.75

5.20

227

0.50

1.87

1.40

4.40

 Increased

156

0.34

2.16

0.90

5.20

67

0.55

1.98

1.50

3.80

Health

 Reduced

177

0.77

2.03

0.04

1.50

4.40

0.002

80

0.76

2.38

0.15

1.75

5.45

0.12

 Unchanged

320

0.42

2.08

0.85

4.80

201

0.56

1.74

1.50

3.90

 Increased

102

0.04

2.61

-0.90

6.60

72

0.15

2.12

1.10

3.90