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Table 1 Baseline patient characteristics relative to chemoprophylaxis use

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

Variable Overall (n = 316) Given chemoprophylaxis p value
Yes (n = 117) No (n = 199)
Age (years)     < 0.001***
 Mean 65.3 67.5 63.9  
 Median 65.0 67.0 64.0  
 SD 8.5 8.5 8.3  
 Range 41–88 47–88 41–83  
Gender     0.596
 Female 227 (71.8%) 82 (70.1%) 145 (72.9%)  
 Male 89 (28.2%) 35 (29.9%) 54 (27.1%)  
BMI     0.016*
 Mean 28.7 27.7 29.3  
 Median 28.6 27.5 29.0  
 SD 5.6 4.8 5.9  
 Range 16.6–51.1 18.30–51.10 16.60–45.20  
Obesity (BMI > 30)     < 0.001***
 Yes 101 (34.6%) 23 (21.3%) 78 (42.4%)  
 No 191 (65.4%) 85 (78.7%) 106 (57.6%)  
Hypertension     0.821
 Yes 197 (62.3%) 72 (61.5%) 125 (62.8%)  
 No 119 (37.7%) 45 (38.5%) 74 (37.2%)  
Hyperlipidemia     0.402
 Yes 174 (55.1%) 68 (58.1%) 106 (53.3%)  
 No 142 (44.9%) 49 (41.9%) 93 (46.7%)  
Diabetes mellitus     0.382
 Yes 79 (25.0%) 26 (22.2%) 53 (26.6%)  
 No 237 (75.0%) 91 (77.8%) 146 (73.4%)  
Ischemic heart disease     < 0.001***
 Yes 42 (13.3%) 28 (23.9%) 14 (7.0%)  
 No 274 (86.7%) 89 (76.1%) 185 (93.0%)  
History of cancer     0.787
 Yes 12 (3.8%) 4 (3.4%) 8 (4.0%)  
 No 304 (96.2%) 113 (96.6%) 191 (96.0%)  
  1. * denotes p value < 0.05, ** denotes p value < 0.01, *** denotes p value < 0.001