Table 2 Intragroup pairwise comparisons of PI.

From: Orthodontic patients’ oral hygiene compliance by utilizing a smartphone application (Brush DJ): a randomized clinical trial

 

Mean difference

p valuea

Intervention group

  

 Baseline (T0)

  

  First follow-up (T1)

1.81

1

  Second follow-up (T2)

6.02

0.021**

  Third follow-up (T3)

7.37

0.003**

 First follow-up (T1)

  

  Second follow-up (T2)

4.21

0.111

  Third follow-up (T3)

5.55

0.030**

 Second follow-up (T2)

  

  Third follow-up (T3)

1.34

1

Control group

  

 Baseline (T0)

  

  First follow-up (T1)

−0.3

1

  Second follow-up (T2)

−2.31

0.813

  Third follow-up (T3)

−4.24

0.119

 First follow-up (T1)

  

  Second follow-up (T2)

−2.01

0.672

  Third follow-up (T3)

−3.94

0.096

 Second follow-up (T2)

  

  Third follow-up (T3)

−1.93

0.561

  1. **p-values are statistically significant.
  2. aBonferroni post hoc test.
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