Table 4 Association between demographic and dental care behaviors with being caries free at 24- months-old (n = 436)

Model 1

Intervention

 Control

1

 Comprehensive

8.67 (3.59, 20.94)

 PHCPs

4.19 (1.87, 9.38)

 Group discussion

2.26 (1.18, 4.35)

 Social network

1.10 (0.59, 2.06)

Child gender

 Male

1

 Female

1.04 (0.68, 159)

Mother’s age

0.96 (0.93, 1.00)

Model 2

Intervention

 Control

1

 Comprehensive

8.79 (3.63, 21.26)

 PHCPs

4.22 (1.88, 9.45)

 Group discussion

2.25 (1.17, 4.34)

 Social network

1.09 (058, 2.04)

Child gender

 Male

1

 Female

1.02 (0.66, 1.57)

Mother’s age

0.98 (0.93, 1.03)

Family size

0.82 (0.60, 1.13)

Model 3

Intervention

 Control

1

 Comprehensive

8.61 (3.54, 20.92)

 PHCPs

4.18 (1.86, 9.37)

 Group discussion

2.26 (1.17, 4.35)

 Social network

1.08 (057, 2.02)

Child gender

 Male

1

 Female

1.02 (0.66, 1.57)

Mother’s age

0.98 (0.94, 1.04)

Family size

0.82 (0.59, 1.13)

D mother at 6 m

1.01 (0.96, 1.07)

Model 4

Intervention

 Control

1

 Comprehensive

4.54 (1.58, 12.94)

 PHCPs

3.16 (1.16, 8.57)

 Group discussion

1.22 (0.50, 3.00)

 Social network

0.63 (0.27, 1.51)

Child gender

 Male

1

 Female

1.10 (0.62, 1.94)

Mother’s age

0.97 (0.90, 1.03)

Family size

0.60 (0.39, 0.92)

D mother at 6 m

1.01 (0.94, 1.09)

Type of milk feeding

 Powder and both of them

1

 Breast feeding Milk

37.62 (19.39, 73.00)