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Table 2 The intracluster and intercluster comparison of oral health knowledge score between the two clusters

From: E-learning or educational leaflet: does it make a difference in oral health promotion? A clustered randomized trial

 

Knowledge score Mean ± SD

 

Cluster

Baseline

6 weeks

12 weeks

P value

Leaflet Cluster

54.94 ± 12.74

82.87 ± 10.69

89.12 ± 8.16

F = 665.67;

P < 0.001*

E-learning Cluster

55.50 ± 9.93

72.16 ± 10.25

74.66 ± 8.98

F = 223.39;

P < 0.001*

Significance

t = − 0.35;

P = 0.73**

t = 7.24;

P < 0.001**

t = 11.92;

P < 0.001**

 
  1. *One way repeated measures ANOVA was applied to compare the mean differences of knowledge score within the same cluster
  2. **Independent samples t-test was applied to compare the mean differences of knowledge score between the two clusters at baseline, 6 weeks and 12 weeks