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. 2021 Jun 24;16:4251–4276. doi: 10.2147/IJN.S301597

Table 3.

Summarize Statistics Model of Box–Behnken Design Used for Optimization of Ethosomal RP with Their Regression Equation

Dependent Variables R2 Adjusted R2 Predicted R2 P value
Y1: particle size(nm) 0.9341 0.9161 0.8692 0.0001
Y2: ZP (mV) 0.9032 0.8768 0.8127 0.0001
Y3: % EE 0.9918 0.9772 0.9070 0.0001
Y4: % drug released over 24 hr 0.9658 0.9564 0.9462 0.0001
Y5: % drug permeated over 24 hr 0.9715 0.9638 0.9532 0.0001
Regression equation of the fitted model
Y1= 294.86 + 74.9875A - 42.2 B - 12.5875C
Y2= 63.0333 + 9.125A + 5.0375 B - 0.9875 C
Y3= 94.27 + 5.805 A+ 2.835B + 0.9C- 1.5525AB - 0.6775AC - 0.7925 BC- 2.00625 A2–0.27625 B2 –0.39125 C2
Y4= 79.6333–7.15625A + 10.0725B + 2.99625 C
Y5= 69.5213–7.07125A + 10.4013B + 2.895 C

Note: Data are mean values (n = 3) ± SD.

Abbreviation: EE%, entrapment efficiency percent.