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Table 2 Intention to treat analysis of the three trials primary outcomes (composite): overall compliance

From: Economic analysis of three interventions of different intensity in improving school implementation of a government healthy canteen policy in Australia: costs, incremental and relative cost effectiveness

  Baseline Follow-up Intervention v Control at follow-up
  Intervention n (%) Control n (%) Intervention n (%) Control n (%) Estimated difference % (95%CI) Relative Risk (95% CI) P-value
High Intensity 0 (0) 0 (0) 21 (60) 2 (5) 56 (35 to 76) 14.41 (2.08 to 99.97) < 0.001a
Medium Intensity 2 (7) 1 (4) 10 (36) 2 (8) 27 (6 to 48) 4.29 (1.04 to17.68) 0.02a
Low Intensity 0 (0) 1 (3) 8 (22) 4 (5) 16 (− 1 to 34) 4.44 (0.65 to 30.11) 0.0624
  1. aStatistically significant