Comments on Hynes et al. Prevalence of Marijuana Use among University Students in Bolivia, Colombia, Ecuador and Peru. Int. J. Environ. Res. Public Health 2015, 12, 5233–5240

Maria Claudia Martinez-Novack, Maria Teresa Ortiz-Ortiz, Bruno Castañeda-Carbajal and German F. Alvarado
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Maria Claudia Martinez-Novack: Facultad de Ciencias de la Salud, Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas; Alameda San Marcos Avenue, block 2, Chorrillos. Lima 09, Lima, Peru
Maria Teresa Ortiz-Ortiz: Facultad de Ciencias de la Salud, Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas; Alameda San Marcos Avenue, block 2, Chorrillos. Lima 09, Lima, Peru
Bruno Castañeda-Carbajal: Facultad de Ciencias de la Salud, Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas; Alameda San Marcos Avenue, block 2, Chorrillos. Lima 09, Lima, Peru
German F. Alvarado: Facultad de Ciencias de la Salud, Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas; Alameda San Marcos Avenue, block 2, Chorrillos. Lima 09, Lima, Peru

IJERPH, 2015, vol. 12, issue 9, 1-3

Abstract: We have read and analyzed the article entitled “Prevalence of marijuana use among university students in Bolivia, Colombia, Ecuador and Peru”. We propose some objective points which could enhance the internal validity of the study ( i.e. , we suggest to report participation proportions).

Keywords: Cannabis; Latin America; epidemiology; prevalence proportion; participation rate (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2015
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