title: The interplay of received social support and self-regulatory factors in smoking cessation.
abstract: OBJECTIVE
  In smoking cessation, individual self-regulation and social support have both proven to be useful. However, the roles of self-regulatory processes and social support are mostly examined separately. The present study aims at examining the unique and joint interactive effects of self-regulation as specified in the health action process approach (HAPA) and social support on smoking cessation. The study tested whether social support can compensate for low levels of self-regulation or whether synergistic effects emerge. DESIGN & MEASURES: Around a self-set quit date, 99 smokers completed baseline questionnaires on HAPA-variables, smoking-specific received social support and smoking cessation (continuous abstinence and point prevalence), with a follow-up Cpproximately 29 days after the quitdate.
  
  
  RESULTS
  Social support moderated the association between volitional self-efficacy and smoking, as well as coping planning and smoking but not between action planning and smoking. No compensatory effect of social support for lower levels of individual regulation emerged but the combination of high levels of the individual variables and social support was related to successful smoking cessation, indicating a synergistic effect.
  
  
  CONCLUSIONS
  The results confirm the importance of examining both self-regulation and social factors in smoking cessation. This should be considered when developing future interventions for smoking cessation.
authors.affiliation: a Department of Psychology, Social and Health Psychology , University of Zurich , Zurich , Switzerland .
authors.forename: Sibylle
authors.initials: S
authors.lastname: Ochsner
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Luszczynska
authors.forename: Gertraud
authors.initials: G
authors.lastname: Stadler
authors.forename: Nina
authors.initials: N
authors.lastname: Knoll
authors.forename: Rainer
authors.initials: R
authors.lastname: Hornung
authors.forename: Urte
authors.initials: U
authors.lastname: Scholz
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D020377:Self Efficacy; D012907:Smoking / Q000523:psychology; D016540:Smoking Cessation / Q000523:psychology* / Q000706:statistics & numerical data; D000074606:Smoking Prevention; D012927:Social Control, Informal; D012944:Social Support; D011795:Surveys and Questionnaires; D055815:Young Adult