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Table 3 The intracluster and intercluster comparison of plaque index score between the two clusters

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

 

PI score Mean ± SD

 

Cluster

Baseline

6 weeks

12 weeks

P value

Leaflet Cluster

2.25 ± 0.43

1.06 ± 0.33

0.85 ± 0.35

F = 733.57;

P < 0.001*

E-learning Cluster

2.33 ± 0.38

1.31 ± 0.39

1.21 ± 0.40

F = 427.62;

P < 0.001*

Significance

t = − 1.39;

P = 0.17**

t = − 4.81;

P < 0.001**

t = − 6.82;

P < 0.001**

 
  1. *Test applied: One way repeated measures ANOVA
  2. **Test applied: Independent samples t-test
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BMC Oral Health

ISSN: 1472-6831

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