PQ3F1: Have you ever had: A head injury requiring medical attention
Based upon 563 valid cases out of 563 total cases.
- mean: 0.36
- median: 0.00
- mode: 0.00
- minimum: 0
- maximum: 1
- standard deviation: 0.48
Location: 1603-1604 (width: 2; decimal: 0)
Variable Type: numeric
(Range of) Missing Values: -9
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.