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Table 3 Caries prevalence of the study subjects and subgroups

From: Obesity is negatively associated with dental caries among children and adolescents in Huizhou: a cross-sectional study

Variables

Underweight

Normal

Overweight

Obesity

Total

Caries

(n = 5211)

Caries free

(n = 2737)

Caries

(n = 49,858)

Caries free

(n = 34,973)

Caries

(n = 4613)

Caries free

(n = 4691)

Caries

(n = 1427)

Caries free

(n = 1671)

Caries

(n = 61,109)

Caries free

(n = 44,072)

Gender

 Male

2709 (62.28)

1641 (37.72)

24,812 (55.92)

19,559 (44.08)

2319 (44.20)

2928 (55.80)

639 (41.71)

893 (58.29)

30,479 (54.92)

25,021 (45.08)

 Female

2502 (69.54)

1096 (30.46)

25,046 (61.90)

15,414 (38.10)

2294 (56.54)

1763 (43.46)

788 (50.32)

778 (49.68)

30,630 (61.65)

19,051 (38.35)

Educational stage

 Primary school

3566 (76.16)

1116 (23.84)

29,074 (72.58)

10,982 (27.42)

2298 (62.62)

1372 (37.38)

633 (57.60)

466 (42.40)

35,571 (71.85)

13,936 (28.15)

 Junior high school

991 (51.00)

952 (49.00)

13,177 (47.77)

14,409 (52.23)

1472 (41.90)

2041 (58.10)

513 (40.20)

763 (59.80)

16,153 (47.07)

18,165 (52.93)

 Senior high school

654 (49.43)

669 (50.57)

7607 (44.26)

9582 (55.74)

843 (39.75)

1278 (60.25)

281 (38.87)

442 (61.13)

9385 (43.95)

11,971 (56.05)

School type

 Public school

3110 (63.69)

1773 (36.31)

30,325 (56.28)

23,559 (43.72)

3047 (48.17)

3278 (51.83)

939 (44.42)

1175 (55.58)

37,421 (55.68)

29,785 (44.32)

 Private school

2101 (68.55)

964 (31.45)

19,533 (63.12)

11,414 (36.88)

1566 (52.57)

1413 (47.43)

488 (49.59)

496 (50.41)

23,688 (62.38)

14,287 (37.62)

Area

 Urban

1696 (55.03)

1386 (44.97)

20,555 (50.10)

20,474 (49.90)

2274 (44.10)

2883 (55.90)

737 (41.38)

1044 (58.62)

25,262 (49.49)

25,787 (50.51)

 Suburb

3018 (70.35)

1272 (29.65)

25,371 (64.90)

13,719 (35.10)

2114 (55.11)

1722 (44.89)

638 (51.41)

603 (48.59)

31,141 (64.27)

17,316 (35.73)

 Remote town

497 (86.28)

79 (13.72)

3932 (83.45)

780 (16.55)

225 (72.35)

86 (27.65)

52 (68.42)

24 (31.58)

4706 (82.93)

969 (17.07)