Table 2 NHS stop smoking services, England, 2003–4 to 2005–6.

Area	Smokers setting a quit date†		Smokers quit at 4 weeks†		Cessation rate	Treated as % of all smokers		4‐week quit as % of all smokers		52‐week quit smokers as % of all smokers
	No		No		%	%		%		%
Spearhead	599 361		315 219		52.6	16.7		8.8		2.2
Non‐Spearhead	894 247		517 459		57.9	13.4		7.8		1.9
χ2 (df:1)	–		–		4044	20 127		3226		761
p Value					<0.001	<0.001		<0.001		<0.001

†Derived from statistics on NHS stop smoking services in England.²²,²³,²⁴