. 2013 May 19;2013:183915. doi: 10.1155/2013/183915

Table 3.

Statistical comparisons of API, OPI, and GI.

		A	B		C
		Intergroup difference	Intragroup difference		Difference test
		Intergroup difference	Propolis group	Control group	Effect of propolis
API	Baseline final study	0.503^a 0.850^a	0.871^c	0.871^c	0.950^b
API	Baseline final study	0.503^a 0.850^a
OPI	Baseline final study	0.137^b 0.020^∗,b	0.012^∗,d	0.410^d	0.001^∗,b
OPI	Baseline final study	0.137^b 0.020^∗,b
GI	Baseline final study	0.063^a 0.034^{∗, a}	0.014^∗,c	0.722^c	0.002^∗,b
GI	Baseline final study	0.063^a 0.034^{∗, a}

A: differences between the propolis group and the control group; B: differences between baseline and final study; C: statistical changes between baseline and final study in the propolis group compared with the control group. ^aTukey test, ^bMann-Whitney U Test, ^c t-test for dependent samples, and ^dWilcoxon matched pairs test; *significance (P < .05).