Aims To accurately document the amount of quitting, length of quit attempts, and prevalence of plans and serious thought about quitting among smokers. Design We used longitudinal data from 7 waves of the International Tobacco Control Policy Evaluation 4-Country Survey (ITC-4). We considered point-prevalence data and cumulative prevalence over the 7 years of the study. We also derived annual estimates of quit activity from reports of quit attempts starting only within more recent timeframes, to control for biased recall. Setting Australia, Canada, the United Kingdom, and the United States of America. Participants 21 613 smokers recruited across 7 waves. Measurements Reported lifetime quit attempts, annual quit attempts, length of attempts, time since last attempt started, frequency of aborted attempts, plans to quit, and serious thought about quitting. Findings Around 40.1% (95% CI: 39.6-40.6) of smokers report attempts to quit in a given year and report an average of 2.1 attempts. Based on free recall, this translates to an average annual quit attempt rate of 0.82 attempts per smoker. Estimates derived only from the preceding month to adjust for recall bias indicate an annual rate of around 1 attempt per smoker. There is a high prevalence of quit-related activity, with over a third of smokers reporting thoughts or actions related to quitting in a given month. Over half the surveyed smokers eventually succeeded in quitting for at least 1 month, and a majority of these for over 6 months. Conclusions Smokers think a lot about stopping and make many unsuccessful quit attempts. Many have been able to last for extended periods and yet they still relapsed. More attention needs to be focussed on translating quit-related activity into long-term abstinence.

ObjectiveTaxation equitably reduces smoking, the leading cause of health inequalities. The tobacco industry (TI) can, however, undermine the public health gains realised from tobacco taxation through its pricing strategies. This study aims to examine contemporary TI pricing strategies in the UK and implications for tobacco tax policy.DesignReview of commercial literature and longitudinal analysis of tobacco sales and price data.SettingA high-income country with comprehensive tobacco control policies and high tobacco taxes (UK).Participants2009 to 2015 Nielsen Scantrak electronic point of sale systems data.Main outcome measuresTobacco segmentation; monthly prices, sales volumes of and net revenue from roll-your-own (RYO) and factory-made (FM) cigarettes by segment; use of price-marking and pack sizes.ResultsThe literature review and sales data concurred that both RYO and FM cigarettes were segmented by price. Despite regular tax increases, average real prices for the cheapest FM and RYO segments remained steady from 2013 while volumes grew. Low prices were maintained through reductions in the size of packs and price-marking. Each year, at the point the budget is implemented, the TI drops its revenue by up to 18 pence per pack, absorbing the tax increases (undershifting). Undershifting is most marked for the cheapest segments.ConclusionsThe TI currently uses a variety of strategies to keep tobacco cheap. The implementation of standardised packaging will prevent small pack sizes and price-marking but further changes in tax policy are needed to minimise the TI’s attempts to prevent sudden price increases.

Everyone has their own unique version of the visual world and there has been growing interest in understanding the way that personality shapes one’s perception. Here, we investigated meaningful visual experiences in relation to the personality dimension of schizotypy. In a novel approach to this issue, a non-clinical sample of subjects (total n = 197) were presented with calibrated images of scenes, cartoons and faces of varying visibility embedded in noise; the spatial properties of the images were constructed to mimic the natural statistics of the environment. In two experiments, subjects were required to indicate what they saw in a large number of unique images, both with and without actual meaningful structure. The first experiment employed an open-ended response paradigm and used a variety of different images in noise; the second experiment only presented a series of faces embedded in noise, and required a forced-choice response from the subjects. The results in all conditions indicated that a high positive schizotypy score was associated with an increased tendency to perceive complex meaning in images comprised purely of random visual noise. Individuals high in positive schizotypy seemed to be employing a looser criterion (response bias) to determine what constituted a ‘meaningful’ image, while also being significantly less sensitive at the task than those low in positive schizotypy. Our results suggest that differences in perceptual performance for individuals high in positive schizotypy are not related to increased suggestibility or susceptibility to instruction, as had previously been suggested. Instead, the observed reductions in sensitivity along with increased response bias toward seeing something that is not there, indirectly implicated subtle neurophysiological differences associated with the personality dimension of schizotypy, that are theoretically pertinent to the continuum of schizophrenia and hallucination-proneness.