In Vitro Antimicrobial Activity of Ethanolic Extract of Polish Propolis against Biofilm Forming Staphylococcus epidermidis Strains

Table 5

Multivariate analysis of variance by three-way ANOVA of proliferation kinetics of S. epidermidis strains in the presence of EEPP expressed as reduction of AlmarBlue.

Source of variation	df	Sum of squares	Mean squares	% of variance	𝐹	𝑃
Strain (𝑆)	10	24371	2437	3.03	176.4	<0.001
Time (𝑇)	4	200813	50203	24.94	3633.5	<0.001
Concentration (𝐶)	10	239404	23940	29.73	1732.7	<0.001
𝑆×𝑇	40	15932	398	1.98	28.8	<0.001
𝑆×𝐶	100	20566	206	2.55	14.9	<0.001
𝑇×𝐶	40	233404	5835	28.99	422.3	<0.001
𝑆×𝑇×𝐶	400	70649	177	8.77	12.8	<0.001