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Table 2 Comparison of mean scores over time by demographic factors (n = 296)*

From: Teaching children road safety through storybooks: an approach to child health literacy in Pakistan

  Baseline test Posttest I Posttest II n Within subjects effects
P-value** P-value***
Overall 5.1 ± 1.4 5.9 ± 1.2 6.1 ± 1.1 296 < 0.001
Gender
 Male 5.0 ± 1.3 6.0 ± 1.1 6.2 ± 1.0 126 < 0.001 0.331
 Female 5.1 ± 1.5 5.8 ± 1.3 6.1 ± 1.1 170
Grades
 Grade 4 4.8 ± 1.4 5.6 ± 1.3 6.1 ± 1.0 143 < 0.001 0.003
 Grade 5 5.3 ± 1.4 6.1 ± 1.1 6.1 ± 1.1 153
School Type
 Public 5.0 ± 1.5 5.7 ± 1.3 6.2 ± 1.1 167 < 0.001 0.009
 Private 5.2 ± 1.4 6.1 ± 1.1 6.0 ± 1.0 129
  1. * Reported as Mean ± SD
  2. ** Significant value < 0.05 for change over time (phases) only
  3. *** Significant value < 0.05 for combined effect of time & different factors (school type, grade and gender)