Table 1

Effect of NHS smoking cessation services on the relative risk of smoking in people living in the most and least deprived quintiles using hypothetical smoking rates

		Pre-intervention			Post-intervention
Deprivation quintile	Population*	Smoking rate, %†	Number of smokers‡	Relative risk‡(95% CI)§	% Of population quitting*	Number of quitters*	Number of smokers‡	Smoking rate, %†	Relative risk(95% CI)‡§
Data from Lowey et al²; †sensitivity estimates including data from Lowey et al*²; ‡data calculated by us; §relative risk of smoking in most deprived compared with least deprived quintile.
Least deprived	187064	25	46766		0.05	85	46681	24.95
Most deprived	336800	25	84200	1 (0.99 to 1.01)	0.25	826	83374	24.75	0.99 (0.98 to 1.00)
Least deprived	187064	5	59353		0.05	85	59268	4.95
Most deprived	336800	50	168400	1.58 (1.56 to 1.59)	0.25	826	167574	49.75	1.57 (1.56 to 1.58)
Least deprived	187064	15	28060		0.05	85	27975	14.95
Most deprived	336800	39	131352	2.60 (2.57 to 2.63)	0.25	826	130526	38.75	2.59 (2.56 to 2.62)