Table 4 Mean FIS-8 and subscale scores by global item responses (brackets contain standard deviations unless otherwise indicated)

How much are your family’s daily lives affected by your child’s teeth, lips, jaws or mouth?^a

 Not at all

297 (70.5)

1.2 (2.7)^b

0.3 (0.7)^b

0.7 (1.8)^b

0.2 (0.7)^b

 Very little

97 (23.0)

2.2 (3.3)

0.7 (1.1)

1.1 (2.0)

0.4 (0.8)

 Some

17 (4.0)

6.1 (5.6)

1.8 (2.0)

3.0 (3.5)

1.3 (1.6)

 A lot

7 (1.7)

5.1 (6.5)

1.4 (1.9)

2.7 (3.0)

1.0 (1.7)

 Very much

3 (0.7)

3.0 (1.0)

1.3 (1.5)

1.7 (2.1)

0.0 (0.0)

Spearman correlation

0.21

0.22

0.11

0.19

How would you describe the health of your child’s teeth and mouth?^f

 Excellent

147 (35.0)

1.1 (2.6)^b

0.3 (0.8)^b

0.7 (1.8)^b

0.2 (0.6)^b

 Very good

176 (41.9)

1.5 (2.9)

0.5 (0.9)

0.9 (1.9)

0.2 (0.7)

 Good

76 (18.1)

2.1 (3.5)

0.6 (1.0)

1.0 (2.0)

0.4 (1.0)

 Fair

19 (4.5)

4.6 (4.8)

1.6 (1.5)

2.1 (3.1)

0.8 (1.1)

 Poor

2 (0.5)

12.0 (7.1)

4.0 (2.8)

5.0 (2.8)

3.0 (1.4)

Spearman correlation

0.28

0.23

0.22

0.22

All combined

422 (100.0)

1.7 (3.2)

0.5 (1.0)

0.9 (2.0)

0.3 (0.8)