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. 2020 Sep 1;24(5):428–432. doi: 10.4103/jisp.jisp_645_19

Table 2.

Intra-group comparison of C reactive protein, plaque index, gingival index, and bleeding index between baseline and 45 days using paired t-test

Groups Parameters Mean±SD Mean difference Percentage of change in relation to baseline t P

Baseline 45 days
Orthoboon CRP 3.48±2.05 1.53±0.74 1.96 56.32 5.395 0.01
PI 1.05±0.36 0.65±0.25 0.40 38.09 6.177 0.01
GI 0.88±0.27 0.55±0.28 0.34 38.63 7.209 0.01
BI 0.88±0.47 0.47±0.17 0.41 46.59 3.922 0.01
Control CRP 3.93±3.49 3.38±3.32 0.55 13.99 6.489 0.01
PI 1.34±0.78 0.57±0.28 0.77 57.46 4.374 0.01
GI 1.07±0.65 0.47±0.26 0.60 56.07 4.263 0.01
BI 1.12±0.74 0.58±0.36 0.54 48.12 5.111 0.01

P<0.05 was considered statistically significant. CRP – C-reactive Protein; PI – Plaque index; GI – Gingival index; BI – Bleeding index; SD – Standard deviation; T – T-Value (Paired t-test); PP-value (probability distribution)