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Table 1 Stage of development of the Baltimore healthy carry-outs trial

From: Development and implementation of the Baltimore healthy carry-outs feasibility trial: process evaluation results

Stage 1 Stage 2 Stage 3
Formative research Development of intervention strategies Implementation of pilot study
Apr 2009 – Dec 2010 Dec 2010- Apr 2011 Feb 2011- Sep 2011
• In–depth interviews • Multi-component intervention strategies • Selection of intervention and matched comparison carry-outs
• Semi-structured questionnaires • Materials development • Three phase program:
• Direct observations   - Promoted foods   - Phase 1: Modified menu boards & menu labeling
• Focus groups   - Audience selection   - Phase 2: Healthy sides & beverages
• Conjoint analysis   - Target behaviors   - Phase 3: Affordable healthy combination meals
   • Process evaluation
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