Factors associated with deficiencies in packaging of surgical instrument by staff at a single center in China

Table 3 Multivariate logistic regression analysis of factors associated with defects in packaging

Variable	β	SE	Waldχ²	P value	OR (95% CI)
Length of service	3.692	1.195	9.544	0.002	40.141 (3.857,417.831)
Educational background	2.458	0.987	6.199	0.013	11.687 (1.687,80.951)
Time period of packaging	2.442	1.818	5.225	0.022	11.495 (1.013,130.494)
Number of staff dealing with packaging	2.192	1.015	4.667	0.031	8.955 (1.225,65.441)
Instrument structure	1.836	0.824	4.970	0.026	6.271 (1.248,31.498)
Whether the wrap was intact	2.507	0.957	6.865	0.009	12.263 (1.880,79.975)
Whether the wrap reached the required quality of cleaning	1.045	0.963	6.977	0.008	2.844 (1.569,14.204)
Whether the instruments were satisfactorily cleaned in compliance with guidelines	2.482	0.967	6.587	0.010	11.970 (1.798,79.694)

β- estimated regression coefficient for variables, SE sensitivity, Waldχ² - chi-square value. OR = exp (β), refers to the odds ratio of a variable in the presence of influencing surgical instrument packaging quality when values of other variables are fixed. 95% CI – 95% confidence interval

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