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Table 3 Assessment of the intervention effect using multilevel logistic regression

From: A randomized controlled trial to evaluate the impact of a geo-specific poster compared to a general poster for effecting change in perceived threat and intention to avoid drowning ‘hotspots’ among children of migrant workers: evidence from Ningbo, China

 

Do you believe that drowning is a serious health problem in Ningbo city? (Yes)

Do you believe that there are lots of drowning-risk waters around you? (Yes)

Do you believe that the likelihood of your accessing a drowning-risk water is great? (Yes)

Would you intend to avoid accessing to those drowning-risk waters when being exposed? (Yes)

Odds Ratio (95% Confidence Interval)

 Experiment (ref: Control)

  Intervention

0.76 (0.38, 1.51)

0.63 (0.31, 1.28)

0.65 (0.24, 1.74)

1.19 (0.78, 1.84)

    p-value

0.435

0.204

0.391

0.420

 Time (ref: Baseline)

  Follow-up

1.99 (1.24, 3.19)

1.64 (1.01, 2.67)

1.86 (0.99, 3.49)

1.35 (0.93, 1.95)

    p-value

0.005

0.047

0.054

0.112

 Time × Experiment

  Baseline × Intervention

5.41 (2.76, 10.59)

6.60 (3.33, 13.10)

4.89 (2.05, 11.68)

1.42 (0.82, 2.49)

    p-value

<0.001

<0.001

<0.001

0.214