Table 2. Risks of self-reported poor oral health for smokers and non-smokers, their risk difference and odds ratio by deprivation quintile.

IMD quintile	Risk for smokers (%)	Risk for non-smokers (%)	Risk difference (%)	p-value	ORs (95% CIs)
1 most deprived	48.5	34.6	13.9	P<0.001	1.77 (1.42, 2.20)
2	46.2	25.1	21.1	P<0.001	2.56 (2.05, 3.20)
3	39.1	26.2	12.9	P<0.001	1.81 (1.46, 2.24)
4	38.3	22.5	15.8	P<0.001	2.14 (1.67, 2.74)
5 least deprived	36.7	21.5	15.2	P<0.001	2.12 (1.61, 2.80)
Overall	42.6	25.1	17.5	P<0.001	2.21 (2.00, 2.45)