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Table 2 Patient demographics, co-morbidities, and surgical factors relative to DVT incidence after TKA

From: Short-duration chemoprophylaxis might reduce incidence of deep vein thrombosis in Asian patients undergoing total knee arthroplasty

Variable Presence of DVT Odds ratio p value Adjusted odds ratio Adjusted
p value
Yes (n = 24) No (n = 292)
Age (years)     0.574 1.00 (0.95–1.06) 0.946
 Mean 66.0 65.2     
 Median 67.5 65.0     
 SD 8.6 8.5     
 Range 49–81 41–88     
Gender    2.92 (0.85–10.05) 0.076 5.45 (1.37–3.41) 0.034*
 Female 21 (87.5%) 206 (70.5%)     
 Male 3 (12.5%) 86 (29.5%)     
BMI     0.356   
 Mean 29.2 28.6     
 Median 29.3 28.0     
 SD 4.7 5.7     
 Range 18.8–36.5 16.6–51.1     
Obesity (BMI > 30)    1.39 (0.59–3.25) 0.447 0.87 (0.31–2.34) 0.989
 Yes 10 (41.7%) 91 (34.0%)     
 No 14 (58.3%) 177 (66.0%)     
Hypertension    0.83 (0.36–1.94) 0.673   
 Yes 14 (58.3%) 183 (62.7%)     
 No 10 (41.7%) 109 (37.3%)     
Hyperlipidemia    1.15 (0.50–2.69) 0.738   
 Yes 14 (58.3%) 160 (54.8%)     
 No 10 (41.7%) 132 (45.2%)     
Diabetes mellitus    1.00 (0.38–2.61) 0.999   
 Yes 6 (25.0%) 73 (25.0%)     
 No 18 (75.0%) 219 (75.0%)     
Ischemic heart disease    0.93 (0.26–3.25) 0.905 1.61 (0.23–8.33) 0.587
 Yes 3 (12.5%) 39 (13.4%)     
 No 21 (87.5%) 253 (86.6%)     
History of cancer    4.49 (1.13–17.85) 0.020* 5.14 (0.92–24.5) 0.044*
 Yes 3 (12.5%) 9 (3.1%)     
 No 21 (87.5%) 283 (96.9%)     
Surgical duration (min)     0.748   
 Mean 106.0 106.6     
 Median 111 104     
 SD 18.4 20.7     
 Range 72–140 60–237     
Length of stay (days)     < 0.001*** 1.19 (1.08–1.31) < 0.001***
 Mean 10.2 7.2     
 Median 8 6     
 SD 6.5 3.4     
 Range 4–36 4–28     
Chemoprophylaxis use    0.32 (0.11–0.95) 0.032* 0.19 (0.04–0.61) 0.011*
 Yes 4 (16.7%) 113 (38.7%)     
 No 20 (83.3%) 179 (61.3%)     
  1. * denotes p value < 0.05, ** denotes p value < 0.1, *** denotes p value < 0.001