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. 2019 Apr 30;11(1):73–78. doi: 10.1016/j.jcot.2019.04.027

Table 1.

Comparison of demographics between preoperative non-chronic and chronic THA opioid users, as well as between preoperative chronic THA opioid users who went on to change opioid use status 6 months following surgery.

Demographics Preoperative
Postoperative (6-months)
Non-chronic opioid users (n = 202) Chronic opioid users (n = 54) p-value Users cured of chronic use (n = 41) Persistent chronic users (n = 13) p-value
Gender, F:M 112:90 27:27 0.509 24:17 3:10 0.026
Mean Age (SD) 63.7 (10.9) 60.8 (10.1) 0.079 61.9 (10.1) 58.2 (10.2) 0.256
Mean BMI (SD) 29.9 (7.3) 31.2 (7.1) 0.244 31.3 (6.9) 31.0 (8.1) 0.896
ASA score: n (%) 0.383 0.009
 1 4 (2.0) 3 (5.6) 1 (2.4) 2 (15.4)
 2 116 (57.4) 28 (51.9) 26 (63.4) 2 (15.4)
 3 78 (38.6) 21 (38.9) 13 (31.7) 8 (61.5)
 4 4 (2.0) 2 (3.7) 1 (2.4) 1 (7.7)
Mean ASA score (SD) 2.5 (1.7) 2.4 (0.7) 2.4 (0.57) 2.7 (0.95)

ASA – American Society of Anesthesiologists; BMI – Body mass index; SD – Standard deviation.