Table 1
Characteristics between groups
Group 1
(Mask)
Group 2
(No mask)
Group 3
(Povidone-iodine)
Mean CFUs per surgeon
0.3
6.4
0.1
SD
0.3
1.2
0.1
Statistical comparison with group 1
p<0.001
p=0.4
CFUs, colony forming units.