Table 3 Hierarchical multiple regression analysis to predict the contribution of the treatment protocol towards the VAS pain scores after 24 h of treatment (n = 84).

From: Treatment of symptomatic, deep, almost cariously exposed lesions using ozone

Model*

Predictors

Unstand Co

Stand Co

t

Sig

95% CI for B

B

SE

Beta

Lower bound

Upper bound

Model 1

R2 = .008

(Constant)

4.753

3.930

1.209

.230

− 3.068

12.574

Gender

.087

.624

.016

.140

.889

− 1.155

1.329

Age

− .094

.157

− .067

− .597

.552

− .405

.218

Affected tooth

.133

.284

.053

.471

.639

− .431

.698

Model 2

R2 = .771

(Constant)

− 4.475

1.981

− 2.258

.027

− 8.418

− .531

Gender

.035

.301

.006

.116

.908

− .565

.635

Age

− .002

.076

− .002

− .030

.976

− .153

.149

Affected tooth

.054

.137

.021

.393

.695

− .219

.327

Treatment protocol

4.875

.300

.877

16.246

 < .0001

4.278

5.472

  1. R2 = Coefficient of determination, Unstand Co = Unstandardized coefficient, Stand Co = Standardized coefficient, B = Beta statistics, SE = Standard Error, t = t statistics, Sig = Significance of probability (P value), CI = Confidence intervals.
  2. *Significance of F statistic change was P = .886 and P < .0001 for Model 1 and Model 2 respectively.