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. 2024 Apr 6;24:154. doi: 10.1186/s12906-024-04456-8

Table 2.

Comparison of mean PI and GI at baseline and after 3 weeks for PR, CH and PL groups (within and between groups)

Variables Timepoint (n) Groups One-way ANOVA (p-value)
PR CH PL
Mean ± SD Mean differeence 95%CI p-value Mean ± SD Mean differeence 95%CI p-value Mean ± SD Mean differeence 95%CI p-value
PI Baseline (45) 1.37 ± 0.27 0.64 (0.537, 0.743) 0.001*a 1.35 ± 0.28 0.41 (0.303, 0.509) 0.001*a 1.30 ± 0.24 0.05 (0.003, 0.105) 0.038*a 0.414b
3 weeks (45) 0.7 ± 3 0.25 0.90 ± 0.17 1.24 ± 0.24 0.001*b
GI Baseline (45) 1.31 ± 0.24 0.66 (0.575, 0.748) 0.001*a 1.30 ± 0.25 0.39 (0.287, 0.500) 0.001*a 1.24 ± 0.18 0.09 (0.036, 0.146) 0.002*a 0.274b
3 weeks (45) 0.65 ± 0.26 0.90 ± 0.20 1.15 ± 0.24 0.001*b

PR Propolis, CH Chlorhexidine, PL Placebo, PI Plaque index, GI Gingival index

*p < 0.05 statistically significant

aPaired t Test

bOne-way ANOVA