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Description/Overview
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Substance Use (SU) is an Interventions domain used for information on the use of recreational products such as caffeine, alcohol, tobacco/nicotine, and other recreational drugs that may be of interest to the study. The amount of information collected for the SU domain depends upon regulatory requirements and the
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applicant's protocol.
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Using collection variable SUNCF with responses of “Never", "Current", and "Former” for each substance-use type, rather than a simple "Yes/No" response is recommended. Based on the wide variability of
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definitions of use, the specific definitions and timeframes for the SUNCF responses would be
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applicant/protocol-defined. By using the SUNCF response categories for usage, a number of questions about use and frequency can be collapsed, in turn decreasing the number of data points required in the SU domain. More detailed information about duration, amount, and start and end dates are optionally captured.
Specification
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Assumptions
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Overview
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