Table 1 Sociodemographic and clinical characteristics of all participants (n = 50), categorized into the Caries group (2–4 approximal caries surfaces) and High caries group (≥ 5 approximal caries surfaces)

Age, years, mean (SD)

23.1 (3.0)

22.5 (3.1)

23.6 (2.8)

Body mass index, kg/m², Mean (SD)

26.4 (5.6)

26.7 (6.0)

26.1 (5.3)

Body mass index, %

 Underweight

4

4

4

 Normal weight

38

32

44

 Overweight

36

48

24

 Obese

22

16

28

Caries, Mean (SD) Median

5.1 (3.5) 4.5

2.8 (0.7) 3.0

7.3 (3.7) 6.0

Self-rated oral health, %*

 Poor

14

8

20

 Fair

38

36

40

 Good

44

52

36

 Very good

2

4

0

Dental care attendance, % often*

84

96

75

Sex, % female

40

32

48

Smoking status, % smoking

20

20

20

Ethnicity, % Swedish-born^#*

40

48

33

Employment, %

 Student

40

44

36

 Employed

44

44

44

 Unemployed

16

12

20

Mother’s education, %*

 Elementary school

34

32

36

 High school

48

44

52

 University

16

24

8

Father’s education, %*

 Elementary school

52

44

60

 High school

36

44

28

 University

10

12

8

Physical activity, %

 Inactive

30

24

36

 Moderately active

26

24

28

 Very active

44

52

46