Chemoprophylaxis in addition to mechanical prophylaxis after total knee arthroplasty surgery does not reduce the incidence of venous thromboembolism

Table 5 Multivariate analysis using demographics, comorbidities and surgical factors found to be significant on univariate analysis

Statement	Odds Ratio (95% Confidence interval)	P-value
Ethnicity		0.089
Chinese	0.184
Malay	0.400
Indian	0.275
Others	0.354
Length of Stay	1.134 (1.101–1.168)	0.00
Previous Lower Limb VTE	3.963 (1.327–11.831)	0.014

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