TABLE 2.

Differences in Cell Viability Between Various Solutions Compared to Culture Medium Control in MTT Assay

	4 hrs			6 hrs			24 hrs
	Mean difference	P	95% CI	Mean difference	P	95% CI	Mean difference	P	95% CI
MPS A	0.14	>0.05	−0.05 to 0.32	0.15	>0.05	−0.05 to 0.32	0.14	>0.05	−0.05 to 0.33
MPS B	0.76	<0.01	0.56 to 0.94	0.73	<0.01	0.57 to 0.87	1.23	<0.01	1.04 to 1.4
MPS C	0.20	>0.05	−0.05 to 0.43	0.33	<0.01	0.18 to 0.48	0.77	<0.01	0.59 to 0.95
MPS D	1.06	<0.01	0.87 to 1.25	1.07	<0.01	0.92 to 1.22	1.13	<0.01	0.94 to 1.32
HBSS	−0.03	>0.05	−0.22 to 0.15	0.07	>0.05	−0.08 to 0.22	0.05	>0.05	−0.13 to 0.22

CI, confidence interval.

Positive difference means lower cell viability.