Table 4 Correlation of different sociodemographic and oral health behavior factors with oral hygiene status in all autistic children and their subgroups according to brushing frequency as an effect modifier in relation to OHI-S

Age

 7–11 years

2.73

(1.37, 5.41)

1.05

(0.41, 2.66)

2.07

(1.21, 3.56)

 12–15 years

1

1

1

Gender

 Boy

0.64

(0.26, 1.57)

0.41

(0.08, 2.19)

0.62

(0.29, 1.34)

 Girl

1

1

1

Family income

 $360 or more

1

1

1

 Less than $360

0.55 (0.26,1.16)

0.81 (0.28, 2.40)

0.64 (0.34, 1.18)

Level of ASD

 1(mild)

1.12 (0.57, 2.20)

1.08 (0.43, 2.72)

1.09 (0.64, 1.87)

 2(moderate)

1

1

1

Father’s education level

 Associate degree or lower

1.10 (0.56, 2.13)

1.15 (0.46, 2.88)

1.14 (0.67, 1.94)

 Above associate degree

1

1

1

Mother’s education level

 Associate degree or less

0.76 (0.39, 1.49)

0.73 (0.28, 1.88)

0.82 (0.48, 1.40)

 More than Associate degree

1

1

1

Daily brushing frequency

 Once or more

-

-

1

 Less than once

-

-

1.78 (1.01, 3.14)

Tooth brushing routine

 Alone Without help

1

1

1

 With help

7.83 (1.74, 35.37)

0.51 (0.10, 2.80)

2.8 (1.13, 6.97)

Using fluoride containing tooth paste

 Most of the time

1

1

1

 Seldom

0.86 (0.35, 2.08)

1.16 (0.46, 2.93)

1.17 (0.64, 2.15)

Frequency of sugary snack consumption per day

 Once or twice

1

1

1

 More than twice

2.86 (1.07, 7.70)

1.36 (0.36, 5.12)

2.21 (1.00, 4.87)