Dietary habits Items

Responses and Binarization†

Relationship with plaque score


1. Frequency of meals (per day) n = 65
 
NS

none

0 (0)
 
1x

0 (0)
 
2x

9 (14)
 
3x

56 (86)
 
4x or more

0 (0)
 
2. Selfevaluation of diet n = 61
 
NS

Good

30 (49)
 
Fair

23 (38)
 
Bad

8 (13)
 
3. Frequency of betweenmeal snacks (sweets) n = 55
 
NS

none

14 (25)
 
1x

27 (49)
 
2x

13 (24)
 
3x

1 (2)
 
4x or more

0 (0)
 
 Values are expressed in n (%). Items subjected to the statistical analysis were shown.
 †Responses were grouped into two (as separated by dotted line) and compared with two categories of PCR (≥ 40% vs. < 40%) by Fisher's exact test. Pvalues less than 0.05 were considered statistically significant.
 NS; not significant