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|
Variable
|
Level
|
Crudea OR
|
CrudeaP-value
|
|---|
|
Ageb
|
Per 1-year increase
|
1.0 (1.0─1.1)
|
0.3
|
|
Sex
|
Female
|
1
|
0.2
|
|
Male
|
0.3 (0.04─1.8)
|
|
BMIb
|
Per 1-kg/m2 increase
|
1.0 (0.8─1.2)
|
0.2
|
|
Diabetes mellitusc
|
No
|
1
|
0.3
|
|
Yes
|
2.6 (0.3─16.4)
|
|
Antimicrobial treatment prior to surgeryd
|
No
|
1
|
0.2
|
|
Yes
|
3.8 (0.2─28.0)
|
|
Adequate antimicrobial prophylaxise
|
No
|
1
|
Not estimable
|
|
Yes
|
─
|
|
Type of surgery
|
Cardiac
|
1
|
0.9
|
|
Abdominal
|
0.8 (0.1─5.4)
|
|
Type of disinfectant
|
Chlorhexidine
|
1
|
Not estimable
|
|
Povidone iodine
|
─
|
|
Overall exposure time of antiseptic productf
|
Per 0.5-min increase
|
1.1 (0.9─1.3)
|
0.6
|
|
Microbial skin counts prior to skin antisepsis
|
Per 100-CFU increase
|
1.0 (1.0─1.0)
|
0.9
|
- We performed all univariable analyses on the complete case population (n = 230 patients)
- BMI body mass index, CFU colony forming unit, OR odds ratio
- aCalculated by use of univariable logistic regression models with fixed effects
- bAt day of surgery
- cPrevious diagnosis of diabetes mellitus type 2 according to medical records
- dAny antimicrobial treatment within the last 2 weeks prior to surgery and excluding peri-interventional antimicrobial prophylaxis
- eAntimicrobial prophylaxis administered within 120 min prior to incision
- fTime period from start of skin antisepsis until the applied antiseptic has dried out after paint 2
