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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 Mean of the total number of CFU detached from the femurs surrounding the irradiated pins (\(\mathop {\overline{x} }\) Exp) against those surrounding the control 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

Femur 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

5.21

5.17

0.04

−0.23

0.32

0.929

48

8

5.70

5.64

0.05

−0.49

0.60

0.575

72

15

5.89

5.26

0.63

0.03

1.23

0.041

  1. Bold values indicate significant differences
  2. Upp upper