Table 5

Sex comparison for mean reduction in hemoglobin among patients undergoing primary arthroplasty who received warfarin and those who received dalteparin

Drug; groupMenWomenp value
Warfarin,* no. patients291443
 Reduction in hemoglobin, mean (SD) g/L
  Total44.98 (16.1)42.16 (12.96)0.013
  Hip arthroplasty group43.44 (16.26)43.58 (13.08)0.93
  Knee arthrplasty group46.42 (15.87)45.19 (14.15)< 0.001
Dalteparin,† no. patients362546
 Reduction in hemoglobin, mean (SD) g/L
  Total49.33 (13.13)44.11 (13.17)< 0.001
  Hip arthroplasty group47.40 (13.47)45.19 (14.15)0.12
  Knee arthrplasty group51.05 (12.61)43.38 (12.44)< 0.001

  • SD = standard deviation.

  • ↵* Administered to patients undergoing primary arthroplasty between Jan. 1, 2004, and Dec. 31, 2004.

  • ↵† Administered to patients undergoing primary arthroplasty between Jan. 1, 2005, and Dec. 31, 2005.