Abstract
AIMS: There is an 18 years age limit for cigarette purchase in Sweden and in order to implement this law outlets need to perform ID checks. This study investigates the rate of cigarette sales and ID checks when pseudo-underage mystery shoppers attempted to purchase cigarettes. It explores possible factors associated with sales outcomes. DESIGN: Nine mystery shoppers (6 females and 3 males) attempted to purchase cigarettes without providing ID. The mystery shoppers were 18 years old but had a younger appearance as judged by an expert panel. During each attempt, the adolescents worked in pairs (shopper and observer). A total of 320 outlets in 13 municipalities in Stockholm County were randomly selected based on an outlet type stratum (i.e., gas station, convenience store, kiosk, grocery store). Effects of variables on sales outcomes were analysed using Pearson's chi-square and binominal regression analysis. RESULTS: In 25.4% of the purchase attempts (total n = 287), cigarettes were sold although the pseudo-underage mystery shopper did not provide a valid ID. In 82.6% of the attempts, the shopper was asked to provide ID, and cigarettes were sold in 9.7% of these cases. The rate of sales was significantly higher among female mystery shoppers (29.5%) compared to male (15.0%). Age limit signs were observed in 89.5% of the outlets but they were not significantly associated with the success rate in a regression analysis. CONCLUSIONS: The results of the present study indicate that cigarettes could potentially and frequently be sold to underage adolescents by outlets within Stockholm County. Therefore, routines established for checking IDs clearly need to be improved. For example, strategies to improve adherence to the legal age limit on the purchase of cigarettes, such as compliance checks using mystery shopping with feedback to retailers, are needed.