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Table 4 The correlation coefficients between the patients’ age, order of the assigned toothbrushes, satisfaction scores, and compliance scores

From: Effects of blue-light LED toothbrush on reducing dental plaque and gingival inflammation in orthodontic patients with fixed appliances: a crossover randomized controlled trial

Variables

 

Age

Order of toothbrushes

Satisfaction

Manual

Satisfaction

LED

Compliance Manual

Compliance LED

Age

Corr Coef

1.000

− 0.172

− 0.020

− 0.164

0.457*

− 0.100

Sig.

.

0.433

0.927

0.455

0.028

0.649

Order of toothbrushes

Corr Coef

− 0.172

1.000

− 0.233

− 0.346

− 0.083

0.114

Sig.

0.433

.

0.285

0.106

0.708

0.605

Satisfaction

Manual

Corr Coef

− 0.020

− 0.233

1.000

− 0.274

0.225

− 0.140

Sig.

0.927

0.285

.

0.206

0.301

0.524

Satisfaction

LED

Corr Coef

− 0.164

− 0.346

− 0.274

1.000

− 0.133

− 0.049

Sig.

0.455

0.106

0.206

.

0.544

0.823

Compliance Manual

Corr Coef

0.457*

− 0.083

0.225

− 0.133

1.000

0.441*

Sig.

0.028

0.708

0.301

0.544

.

0.035

Compliance LED

Corr Coef

− 0.100

0.114

− 0.140

− 0.049

0.441*

1.000

Sig.

0.649

0.605

0.524

0.823

0.035

.

  1. Corr Coef = Correlation coefficient, Sig. (2-tailed), *Significant difference (P < 0.05)