Table 3

Determinants of smoking cessation outcomes

Smoking outcomes: unstandardised coefficient (significance level)
Predictor variables (ordinary least squares estimation)Reach (%)Absolute success (n)Cessation 
 rate (%)Loss (%)
Area characteristics
Whether an HAZ0.593 (0.001)0.51 (0.001)
Index of multiple deprivation−0.35 (0.001)0.0051(0.006)
Number of adult smokers aged 16+ in health authority (millions)2.3 (0.001)
% population aged 30–44−0.027 (0.024)
Service characteristics
Number of months before service expected to work at full capacity−0.024 (0.009)
Service operating at full capacity now0.13 (0.015)
Coordinator has responsibilities other than developing/running service−6.3 (0.001)0.15 (0.001)
Salary level of coordinator−0.088 (0.037)
Difficulty recruiting smoking cessation service advisors or counsellors−0.053 (0.043)
Difficulty finding good quality training courses for advisors or counsellors0.037(0.042)
Central base used (almost) exclusively by smoking cessation service−10.3 (0.001)0.14 (0.043)
Satellite/outreach bases shared between service and other organisations−0.12 (0.029)
General practices sometimes used by advisors to deliver cessation interventions7.5 (0.013)
Other NHS primary care premises used (other than general practices, pharmacies)0.13 0(.047)
% users receiving individual support0.0028 (0.004)0.0035 (0.001)
Length (minutes) of individual sessions0.0076 (0.004)−0.0066 (0.002)
Number of individual sessions in a complete treatment course1.3 (0.018)
% users receiving group support0.18 (0.001)
Number of different types of professionals receiving training from service staff−0.035 (0.008)
Protocol for dispensing or prescribing bupropion agreed with local GPs5.5 (0.016)
Whether advisors/counsellors ever recommended bupropion−0.15 (0.012)
Strength of relationship of services with local PCGs/PCTs0.073 (0.041)0.081 (0.008)
Constant−0.17 (0.091)2.96 (0.001)38.2 (0.001)1.52 (0.001)
Sample size74757474
Adjusted R20.630.670.490.46
Significance level of F<0.001<0.001<0.001<0.001