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Table 2 Stages of change at 1- month follow up

From: A behavioral strategy to minimize air pollution exposure in pregnant women: a randomized controlled trial

  Intervention (N = 53) Control (N = 51)  
  No. (%) No. (%) Pa
Pre-action 7 (13.2) 48 (94.1)  
Action 46 (86.8) 3 (5.9)  
    <0.001
  1. a Derived from chi-square