ADaM and Meta Data_Year_1

The underlying data for Year 1-3 of the Trends in Prevalence and Patterns of Use of HTP in Japan A 3 Year Study are available in three SAS datafiles in the Clinical Data Interchange Standards Consortium (CDISC) Analysis Data Model (ADaM) structure www.cdisc.org/standards.
The datasets are distributed under CC-BY (4.0) copyright license.
ADSL (adsl.sas7bdat) files are the Subject Level Analysis Datasets and contain the main information on participants identifier, demographics, and tobacco and/or nicotine product use groups and patterns to facilitate analysis and interpretation of analysis.
ADQS (adqs.sas7bdat) files are the Questionnaire Analysis Datasets and contain specific information on the study survey, i.e. ,all questions and items answered by participants in the survey.
ADEX (adex.sas7bdat) files are the Exposure Analysis Dataset and contain specific information on the tobacco and/nicotine product use exposure i.e., all questions and items answered by participants in the survey related to their product use.
The ADAM specification and metadata file (ADaM_PMX01JP_AnY1_DBconv.xlsx) contains the dataset and variable labels and definitions, code lists to decode the variables names, terms and values, and the methods and computational algorithms to derive the analytical datasets.
The “Tobacco Use Prevalence” questionnaire (Year 1 Tobacco Use Prevalence Questionnaire_eng_jp.pdf) is the questionnaire administered in the general population and IQOS user survey (Japanese and English version).
For more on the study, including results and a discussions, please refer to the original scientific publication.