*3.2. In Vivo Test*

Among SA, SA + VUV, and SA + VUV + BS, there were statistically significant differences in the weights of the whole blood absorbed in the cotton pellet measured at 5 min, 6 min, and 7 min (*p* < 0.01, Figure 6). Summary statistics of this study are shown in Table 1.


**Table 1.** Summary Statistics of this Study.

DF: degrees of freedom, N: number of samples, SA: a conventional SA surface; SA + VUV: an SA surface with vacuum-UV treatment; SA + VUV + BS: an SA surface coated with a pH-buffering agent after vacuum-UV treatment. \* *p* < 0.05 and \*\* *p* < 0.01 by Kruskal–Wallis test.

**Figure 6.** In vivo test of blood clotting. Weight (g) of the whole blood absorbed in the cotton pellet measured from each implant site according to time. SA, a conventional SA surface; SA + VUV, an SA surface with vacuum-UV treatment; SA + VUV + BS, an SA surface coated with a pH-buffering agent after vacuum-UV treatment. Mean ± SD, \*\* *p* < 0.01 by Kruskal–Wallis test.
