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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: J Consult Clin Psychol. 2021 Jun 24;89(7):590–600. doi: 10.1037/ccp0000657

Table 1.

Baseline Characteristics of Initial Participant Sample by Treatment Group and Usual Care Patients

Total Cognitive Behavioral Psychoeducation Mindfulness of Breath Mindfulness of Pain Test Statistic Statistical Significance
N 118 39 34 45
Age, mean (SD) 64.84 (9.86) 64.26 (10.87) 64.97 (10.37) 65.25 (8.68) F=0.10 p=.90
Women, No. (%) 73 (61.9) 23 (59.0) 21 (61.8) 29 (64.4) χ2=1.12 p=.89
Race, No. (%) χ2=7.98 p=.44
 Asian 1 (0.8) - 1 (2.9) -
 Native Hawaiian or Other Pacific Islander 1 (0.8) 1 (2.6) - -
 White or Caucasian 110 (93.0) 35 (89.7) 31 (91.2) 44 (97.8)
 Other 4 (3.4) 3 (7.6) 2 (5.9) 1 (2.2)
Hispanic Ethnicity, No. (%) 3 (2.5) 2 (5.1) 1 (2.9) 1 (2.2) χ2=7.36 p=.29
Admitting Diagnosis, No. (%) χ2=1.68 p=.43
 Hip Arthroplasty 39 (33.1) 16 (41.0) 10 (29.4) 13 (28.9)
 Knee Arthroplasty 79 (66.9) 23 (59.0) 24 (70.6) 32 (71.1)
BMI, mean (SD) 30.83 (6.69) 30.80 (6.54) 33.01 (7.13) 29.18 (6.16) F=3.27 p=.04
Tobacco Use, No. (%) 27 (22.9) 7 (17.9) 9 (26.5) 11 (24.4) χ2=1.61 p=.81
Alcohol Use, No. (%) 53 (44.9) 15 (38.5) 15 (44.1) 23 (51.1) χ2=3.14 p=.54
Drug Use, No. (%) 2 (1.7) 1 (2.6) 1 (2.9) - χ2=3.23 p=.52
Nonsteroidal Anti-Inflammatory Drug Use, No. (%) 75 (63.6) 25 (64.1) 21 (61.8) 29 (64.4) χ2=0.18 p=.92
Prescription Opioid Use, No. (%) 27 (22.9) 13 (33.3) 3 (8.8) 11 (24.4) χ2=6.59 p=.04
Psychotropic Medication Use, No. (%) 42 (35.6) 13 (33.3) 10 (29.4) 19 (42.2) χ2=1.67 p=.43
Days from Preoperative Intervention to Surgery (SD) 23.26(16.63) 24.72 (15.05) 25.53 (18.06) 19.67 (15.85) F=1.44 p=.24
Surgeon, No. (%) χ2=9.93 p=.27
 Surgeon 1 15 (12.7) 3 (7.7) 5 (14.7) 7 (15.6)
 Surgeon 2 32 (27.1) 12 (30.8) 6 (17.6) 14 (31.1)
 Surgeon 3 35 (29.7) 9 (23.1) 16 (47.1) 10 (22.2)
 Surgeon 4 34 (28.8) 14 (35.9) 7 (20.6) 13 (28.9)
Spinal Anesthesia, No. (%) 102 (86.4) 36 (92.3) 28 (82.4) 38 (84.4) χ2=3.60 p=.46
Physical Therapy Sessions, mean (SD) 3.02 (4.17) 1.26 (2.00) 5.68 (5.57) 2.48 (3.27) F=12.82 p<.01
Readmissions, mean (SD) 0.10 (0.31) 0.05 (0.23) 0.15 (0.36) 0.11 (0.32) F=0.89 p=.41