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      Interrupted time series designs in health technology assessment: lessons from two systematic reviews of behavior change strategies.

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          Abstract

          In an interrupted time series (ITS) design, data are collected at multiple instances over time before and after an intervention to detect whether the intervention has an effect significantly greater than the underlying secular trend. We critically reviewed the methodological quality of ITS designs using studies included in two systematic reviews (a review of mass media interventions and a review of guideline dissemination and implementation strategies).

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          Author and article information

          Journal
          Int J Technol Assess Health Care
          International journal of technology assessment in health care
          0266-4623
          0266-4623
          2003
          : 19
          : 4
          Affiliations
          [1 ] Health Services Research Unit, University of Aberdeen, Foresterhill, UK. crr@hsru.abdn.ac.uk
          Article
          10.1017/s0266462303000576
          15095767
          856856ac-1d47-4b07-8ac8-46ca0ac663ef
          History

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