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Table 1 Distribution of variables in the three groups: caries free, few lesions and high caries group

From: Factors underlying the polarization of early childhood caries within a high-risk population

Variables

Caries free group N (%)

Few lesions group N (%)

High caries group N (%)

Family Income (minimum wages)

   

  <1

55 (65)

19 (23)

10 (12)

  1

75 (68)

22 (20)

14 (13)

  > 1

30 (79)

5 (13)

3 (8)

Mother’s years of education

   

  < 8

37 (59)

16 (25)

10 (16)

  8 a 11

64 (72)

15 (17)

10 (11)

  > 11

59 (73)

15 (18)

7 (91)

Who stayed at home with the child when s/he was not in day care

   

  The mother

80 (68)

24 (20)

13 (11)

  Others

80 (69)

22 (19)

14 (12)

Whether the mother or caregiver had received information about oral health

   

  No

68 (71)

18 (19)

9 (9)

  Yes

93 (67)

28 (20)

18 (137)

Mother’s history of caries

   

  No

68 (69)

21 (22)

9 (9)

  Yes

92 (68)

25 (19)

18 (13)

Number of previous child hospitalizations

   

  0

90 (67)

27 (20)

18 (13)

  1

55 (71)

15 (20)

7 (9)

  ≥2 times

16 (73)

4 (18)

2 (9)

Whether they had already visited the dentist

   

  No

135 (67)

44 (22)

22 (11)

  Yes

26 (79)

2 (6)

5 (15)

Antibiotic use in the last year

   

  No

107 (70)

26 (17)

19 (13)

  Yes

54 (66)

20 (24)

8 (10)

Nighttime breastfeeding after 1 year

   

  No

125 (66)

45 (24)

20 (10)

  Yes

38 (78)

4 (8)

7 (14)

Use of a night bottle

   

  No

117 (65)

40 (22)

23 (13)

  Yes

44 (82)

6 (11)

4 (7)

Frequency of sucrose consumption between main meals

   

  ≤ 3

145 (72)

42 (21)

15 (7)

  >3 times

22 (55)

6 (15)

12 (30)

When teeth brushing started (months)

   

  0 - 6

19 (86)

3 (14)

0 (0)

  7 a 12

69 (69)

16 (16)

15 (15)

  > 12

73 (65)

27 (24)

12 (11)

Who does the teeth brushing

   

  The child alone

17 (49)

14 (40)

4 (11)

  The caregiver

144 (72)

32 (16)

23 (11)

The number of times a day their teeth are brushed

   

  up to 1

15 (58)

7 (27)

4 (15)

  ≥2

146 (70)

39 (19)

23 (11)

Visible biofilm

   

  <15%

58 (79)

11 (15)

4 (6)

  ≥ 15%

112 (64)

38 (22)

24 (14)

Streptococcus mutans contamination in the saliva

   

  <105 CFU*

104 (69)

28 (19)

17 (11)

  ≥ 10 5 CFU*

63 (66)

21 (22)

11 (12)

Total**

167 (100)

49 (100)

28 (100)

  1. *CFU: colony-forming units **umbers may not add to total because of missing values.