S4Q9: Past 12 months, ever time when had to use more of substances to get same effect?
|-8||Out of the universe||41||7.3%|
Based upon 522 valid cases out of 563 total cases.
- mean: 0.88
- median: 1.00
- mode: 1.00
- minimum: 0
- maximum: 1
- standard deviation: 0.33
Location: 148-149 (width: 2; decimal: 0)
Variable Type: numeric
(Range of) Missing Values: -9 , -8
Source: This variable was taken from: Addiction Health Evaluation and Disease (AHEAD) Management Study in Boston, Massachusetts, 2006-2010.
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Disclaimer: The frequencies for this variable may not be weighted. They are purely descriptive and may not be representative of the study population. Please use with caution and consult the study documentation.