Factorial Study of Compressive Mechanical Properties and Primary In Vitro Osteoblast Response of PHBV/PLLA Scaffolds

Table 4

Calculated main effects of the variables on compressive strength and modulus.

Main effects	Effect on compressive yield strength (MPa)*	Effect on modulus (MPa)*
(A) Polymer concentration	+0.25±0.03	+3.4±1.12
(B) Water phase composition	−0.26±0.03	−4.0±1.12
(C) Ratio of PHBV/PLLA	−0.01±0.03	−3.1±1.12
(D) The amount of HA	+0.18±0.03	+6.5±1.12
(E) Molecular weight of PLLA	+0.16±0.03	+1.9±1.12

∗0𝑥0𝑒𝑓88mean ± standard error.