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Epidemiology Surveys
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Variable Label: Age last time had attention problem for 6+ months


AD4a

How old were you the last time you had a period of six months or longer when you had a lot of difficulty with concentration or attention?

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  • Valid N: 199
  • Refused: 18
  • Don't Know: 0
  • Missing (Other): 0
  • Missing (System): 9065
MeanStd DevMedianMinMax
16.8308.5015.0004.00045.000
  • Valid Range: 4 - 45
  • Total Cases: 9282

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