Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 2 Mean of the total number of CFU detached from the irradiated pins (\(\mathop {\overline{x} }\) Exp) and non-irradiated pins (\(\mathop {\overline{x} }\) control) at 24, 48 and 72 h for the different inoculums employed
From: In vivo bactericidal efficacy of the Ti6Al4V surface after ultraviolet C treatment
Time (h) | n | Implant log10 (CFU) | |||||
|---|---|---|---|---|---|---|---|
\(\mathop {\overline{x} }\) Control | \(\mathop {\overline{x} }\) Exp. | \(\mathop {\overline{x} }\) Control − \(\mathop {\overline{x} }\) Exp | Binomial exact differences (95 % CI) | P Wilcoxon test | |||
Low | Upp | ||||||
24 | 11 | 5.19 | 4.75 | 0.44 | −0.02 | 0.90 | 0.05 |
48 | 8 | 5.57 | 5.77 | −0.19 | −0.54 | 0.16 | 0.263 |
72 | 15 | 5.59 | 5.46 | 0.13 | −0.37 | 0.62 | 0.496 |