Synergistic Effects of SDS and H₂O₂ Combinations on Tracheal Scaffold Development: An In Vitro Study Using Goat Trachea

Table 1

The formula for the sample size in each ANOVA design.

ANOVA design	Application	Minimum number of n per group	Maximum number of n per group
One-way ANOVA	Comparison between groups	10/k + 1	20/k + 1
One within-factor, ANOVA with repeated measures	One group, repeated measurements	10/(r − 1) + 1^a,b	20/(r − 1) + 1^a,b
One between-factor, one within-factor, ANOVA with repeated measures	Comparison between groups, repeated measurements	10/kr + 1^b	20/kr + 1^b

k = number of groups, n = number of subjects per group, N = total number of subjects, r = number of repeated measurements. ^an = N, because only one group is involved, ^bn must be multiplied by r if there are sacrificed animals in each measurement.