Table 1

Study characteristics (n=20)

Study IDCountryYear of data collectionSampleStudy designOutcome measures
Abad-Vivero et al39Mexico2015n=10 124 smokers and non-smokers, ages 11–16 yearsCross-sectional, experimental designPrevalence/use;
perceptions
Barrientos-Gutierrez et al37Mexico2016n=4251 smokers and non-smokers, ages 12–14 yearsCross-sectional, discrete choice experimentPerceptions
Brown et al28The Philippines2019n=63 smokers and non-smokers, ages 18–24 yearsFocus groups (n=8, stratified by gender and smoking status)Perceptions
Cho and Thrasher30South Korea2016n=1940 smokers, ages 18+ yearsCross-sectionalPrevalence/use;
perceptions
Emond et al31USA2013–2014n=7181 smokers, ages 18–44 yearsCross-sectionalPrevalence/use;
perceptions
Gilbert and Ewald48Australia2019n=41 female smokers, ages 18–40 yearsIn-depth interviewsPerceptions
Grilo et al44Mexico2018n=56 adolescent smokers and non-smokers and young adult smokersFocus groups (n=10, stratified by gender, smoking status, socioeconomic status)Perceptions
Gutiérrez-Torres et al32Mexico2009, 2011, 2015, 2016n=12 692 smokers, ages 15–65 years who reported their last cigarette brand purchasedRepeated cross-sectional of two surveysPrevalence/use
Hoek et al38New Zealand2017n=816 smokers and susceptible non-smokers, ages 18–25 yearsCross-sectional, discrete choice experimentPrevalence/use; perceptions
Moodie et al45UK (Scotland)2015n=120 smokers, ages 16+ yearsFocus groups (n=20, stratified by gender, age, social grade)Perceptions
Moodie et al46UK (Scotland)2013n=76 female smokers and non-smokers, ages 12–24 yearsFocus groups (n=12, stratified by gender, smoking status, age)Perceptions
Moodie et al14UK2016n=3620 factory-made cigarette smokers, ages 18+ yearsCross-sectionalPrevalence/use;
crushing behaviour;
perceptions
Paraje et al34Chile2017n=851 smokers, ages >13 yearsCross-sectionalPrevalence/use;
perceptions
Schneller40USA2013–2014, 2014–2015n=8292 smokers with a usual brand, ages 18+ yearsCohort, two wavesPrevalence/use
Schneller et al42USA2017–2019n=18 menthol smokers not trying to quit with no medical contraindications, ages 18–65 yearsRandomised controlled studyPerceptions;
product response
Strasser et al43USA2010–2011n=32 menthol smokers not trying to quit, ages 21–65 yearsRandomised controlled studySmoking topography;
product response
Thrasher et al41Australia, Mexico, USA2012–2014n=5864 observations, 2710 smokers (Australia); n=5723 observations, 3366 smokers (Mexico); n=6865 observations, 4154 smokers (USA), ages 18–64 yearsCohort, six quarterly wavesPrevalence/use;
crushing behaviour;
perceptions
Wackowski et al47USA2014–2015n=45 menthol smokers, ages 18–24 yearsFocus groups (n=3 black; n=3 other race)Perceptions
White and Williams35Australia2014n=23 007 smokers and non-smokers, ages 12–14 yearsCross-sectionalPrevalence/use
Zavala-Arciniega and Gutiérrez-Torres36Mexico2018–2019n=8516 smokers, ages >10 yearsCross-sectionalPrevalence/use