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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Acad Pediatr. 2011 Jan–Feb;11(1):34–43. doi: 10.1016/j.acap.2010.12.006

Table 3.

Study Group Means and Standard Deviations for Total Risk and Safety Practice Indices and Inter-rater Reliability for Amount of Effort to Implement

Safety Risk or Safety Practice Educational Book Non-Educational Book No Book Min Max Inter-rater Reliability (kappa)
n = 2851 n = 2991 n = 3261
Composite Indices M (sd)2 M (sd)2 M (sd)2
Total Number of Risks in Environment (Count) 2.41 (1.69) 2.70(1.68) 2.83(1.86) 0 10
Fraction of Applicable Low Effort Safety Practices Used 0.85 (0.09) 0.81 (0.10) 0.80 (0.11) 0.37 1 0.87
Fraction of Applicable High Effort Safety Practices Used 0.30 (0.21) 0.31 (0.21) 0.32 (0.20) 0 1 0.78
1

Ns pooled across six waves

2

Means and standard deviations are averaged across six waves