VISITYEAR: Year of assessment
Based upon 563 valid cases out of 563 total cases.
- minimum: 2006.00
- maximum: 2008.00
- mode: 2007.00
- mean: 2007.06
- median: 2007.00
- standard deviation: 0.73
Location: 6-9 (width: 4; decimal: 0)
Variable Type: numeric
Source: This variable was taken from: Addiction Health Evaluation and Disease (AHEAD) Management Study in Boston, Massachusetts, 2006-2010.
Copyright: ICPSR has an FAQ on copyright and survey instruments.
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.