Results : We confirmed the importance of the 4 main factors influencing SC : ( 1 ) environmental factors , ( 2 ) genomic factors , ( 3 ) gene-environment interactions , and ( 4 ) evidence -based interventions .
The model demonstrates the complex network of factors influencing SC .
Background : Smoking behaviour is a major public health problem worldwide .
Several sources have confirmed the implication of genomic factors in smoking behaviour .
These factors interact both with environmental factors and interventions to develop a certain behaviour .
Objectives : Describing the environmental and genomic factors as well as the interventions influencing smoking cessation  ( SC ) and developing a working model incorporating the different factors influencing SC were our main objectives .
Gender Stratified Gene and Gene–Treatment Interactions in Smoking Cessation
We conducted gender-stratified analyses on a systems-based c and i date gene study of 53 regions involved in nicotinic response and the brain — reward pathway in two r and omized clinical trials of smoking  cessation treatments ( placebo , bupropion , transdermal and nasal spray nicotine replacement therapy ) . We adjusted P-values for multiple correlated tests , and used a Bonferroni-corrected α-level of 5 × 10−4 to determine system-wide significance . Four single-nucleotide polymorphisms ( rs12021667 , rs12027267 , rs6702335 , rs12039988 ; r2>0.98 ) in erythrocyte membrane protein b and 4.1 ( EPB41 ) had a significant male-specific marginal association with smoking abstinence ( odds ratio (OR)=0.5 ; 95 % confidence interval ( CI ) : 0.3–0.6 ) at end of treatment ( adjusted P<6 × 10−5 ) . rs806365 in cannabinoid receptor 1 ( CNR1 ) had a significant male-specific gene – treatment interaction at 6-month follow-up ( adjusted P=3.9 × 10−5 ) ; within males using nasal spray , rs806365 was associated with a decrease in odds of abstinence ( OR=0.04 ; 95 % CI : 0.01–0.2 ) . While the role of CNR1 in substance abuse has been well studied , we report EPB41 for the first time in the nicotine literature
Results : We confirmed the importance of the 4 main factors influencing SC : ( 1 ) environmental factors , ( 2 ) genomic factors , ( 3 ) gene-environment interactions , and ( 4 ) evidence -based interventions .
The model demonstrates the complex network of factors influencing SC .
Background : Smoking behaviour is a major public health problem worldwide .
Several sources have confirmed the implication of genomic factors in smoking behaviour .
These factors interact both with environmental factors and interventions to develop a certain behaviour .
Objectives : Describing the environmental and genomic factors as well as the interventions influencing smoking cessation  ( SC ) and developing a working model incorporating the different factors influencing SC were our main objectives .