Helping smokers with depression to quit smoking: collaborative care with Quitline

To report smokers' evaluations and uptake of Quitline-doctor comanagement of smoking cessation and depression, a key component of the Victorian Quitline's tailored call-back service for smokers with a history of depression and to explore its relationship to quitting success.

Prospective study followed Quitline clients disclosing doctor-diagnosed depression (n = 227). Measures were taken at baseline (following initial Quitline call), posttreatment (2 months) and 6 months from recruitment (77% and 70% response rates, respectively).

Uptake of comanagement (initiated by fax-referral to Quitline), making a quit attempt (quit for 24 hours), sustained cessation (> 4 months at 6-month follow-up).

At 2-month follow-up, 83% thought it was a good idea to involve their doctor in their quit attempt, 74% had discussed quitting with their doctor, and 43% had received comanagement. In all, 72% made a quit attempt, 37% and 33% were abstinent posttreatment and at 6 months, respectively, and 20% achieved sustained cessation. Among participants who discussed quitting with their doctor, those receiving comanagement were more likely to make a quit attempt than those who did not receive comanagement (78% v 63%). Participants with comanagement also received more Quitline calls (mean 4.6 v 3.1) - a predictor of sustained cessation. Exacerbation of depression between baseline and 6 months was reported by 18% of participants but was not related to cessation outcome.

Quitline-doctor comanagement of smoking cessation and depression is workable, is valued by smokers, and increases the probability of quit attempts. Smoking cessation did not increase the risk of exacerbation of depression.