Effect of tobacco control policies on the Swedish smoking quitline using intervention time-series analysis.
Xingwu ZhouAlessio CrippaAnna-Karin DanielssonMaria R GalantiNicola OrsiniPublished in: BMJ open (2019)
Within an overall decreasing trend of daily smoking in Sweden, we found that the recent introduction of pictorial warnings together with text warnings and referral text had a discernible positive impact on the calling rates to the smoking quitline. We were also able to detect a likely impact of earlier nationwide interventions.