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Table 1 Data comparison between group A and group B

From: Comparison of patient outcomes in periarticular and intraarticular local anaesthetic infiltration techniques in total knee arthroplasty

Variable Group A Group B p value
Mean (sd) n Mean (sd) n
Age 68.8 (9.8) 47 66.2 (9.4) 54 0.1717
PCA 53.1 (41.0) 47 68.3 (49.3) 54 0.0934
Total opioid analgesia (24 h) 58.7 (45.8) 47 72.4 (50.7) 54 0.1667
Total opioid analgesia (admission) 118.5 (109.5) 47 125.7 (74.9) 54 0.7060
Oxford (pre) 41.1 (5.5) 47 40.8 (5.9) 51 0.8053
Oxford (6 weeks post) 20.9 (6.6) 42 24.2 (5.4) 41 0.0143*
Oxford (difference) −19.9 (7.9) 42 −16.8 (8.0) 41 0.0869
ROM (pre) 111.1 (17.1) 47 112.1 (14.6) 54 0.7398
ROM (6 weeks post) 110.8 (12.8) 47 109.7 (10.2) 54 0.6309
ROM (difference) −0.30 (15.9) 47 −2.48 (15.5) 54 0.4885
Haemoglobin (difference) 26.4 (8.6) 45 24.2 (8.4) 51 0.2130
VAS day 1 3.83 (2.0) 47 4.63 (1.8) 54 0.0391*
VAS discharge 2.47 (1.6) 47 2.87 (1.5) 54 0.2014
VAS discharge without outliers 2.24 (1.2) 47 2.87 (1.5) 54 0.0253*
LOS 4.30 (2.1) 47 3.44 (0.7) 54 0.0104*
LOS without outliers 3.86 (1.2) 47 3.44 (0.7) 54 0.0386*
  1. *p value of <0.05