Table 2 Summary of between-treatment differences in adjusted mean TPI score (ITT population)

From: A randomised controlled trial to evaluate the plaque removal efficacy of sodium bicarbonate dentifrices in a single brushing clinical model

Comparison

Differencea (95% CI)

% diffb

p-value

67% NaHCO3 + herbs

vs 67% NaHCO3/no herbs

−0.01 (−0.07, 0.05)

1.3

0.6464

vs 62% NaHCO3 + herbs

−0.02 (−0.08, 0.04)

1.4

0.6147

vs 0% NaHCO3/no herbs

−0.21 (−0.27, −0.15)

23.1

<0.0001

67% NaHCO3/no herbs

vs 62% NaHCO3 + herbs

0.00 (−0.06, 0.06)

0.1

0.9653

vs 0% NaHCO3/no herbs

−0.20 (−0.26, −0.14)

21.6

<0.0001

62% NaHCO3 + herbs

vs 0% NaHCO3/no herbs

−0.20 (−0.26, −0.14)

21.4

<0.0001

  1. Bolded p-values indicate statistical significance
  2. aDifference is adjusted mean; a negative difference favours first named treatment
  3. bPercent difference: second named treatment taken as reference for percent difference calculation ((difference/reference) × 100%)
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