Table 5.

Associations of demographic and clinical parameters with the 14-item Oral Health Impact Profile (OHIP-14) global and domain scores among patients with chronic periodontitis and control subjects

Variable	Functional limitation (OHIP-1 + 2)	Physical pain (OHIP-3 + 4)	Psychological discomfort (OHIP-5 + 6)	Physical disability (OHIP-7 + 8)	Psychological disability (OHIP-9 + 10)	Social disability (OHIP-11 + 12)	Handicap (OHIP-13 + 14)	OHIP-14 global score
Current NRS	0.005	0.017	NS	0.030	0.021	<0.001	<0.001	<0.001
Maximal NRS	<0.001	0.001	NS	0.004	NS	0.005	0.013	<0.001
Bleeding score	NS	NS	NS	0.013	NS	NS	NS	0.050
Probing depth	NS	NS	NS	0.010	NS	0.006	0.001	0.003
Radiographic bone loss	<0.001	0.009	NS	<0.001	0.034	0.023	<0.001	<0.001
PI	NS	NS	NS	NS	NS	NS	NS	NS
D	0.024	<0.001	0.008	0.006	0.011	NS	NS	0.001
M	0.002	NS	NS	<0.001	NS	NS	0.003	0.006
F	NS	NS	NS	NS	NS	NS	NS	NS
DMFT	0.007	0.045	0.046	NS	0.018	NS	NS	0.010
Country of birth	NS	NS	NS	<0.001	0.006	NS	NS	0.008

P-values for all variables were calculated using Pearson correlation, except for ‘Country of birth’, which was calculated using analysis of variance (ANOVA).

D, decayed teeth; DMFT, decayed, missing and filled teeth; F, filled teeth; M, missing teeth; NRS, Numerical Rating Scale; PI, plaque index.