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Table 1 Descriptive statistics for the TJA cohort

From: Sleep disturbance, dyspnea, and anxiety following total joint arthroplasty: an observational study

Variable

TJA cohort

(N = 2638)

Data from medical record

 

Age, mean (SD), yrs

64.4 (9.6)

Sex, no. (%)

 

 Female

1404 (53.3%)

 Male

1234 (46.8%)

Race, no. (%)

 

 White

2432 (92.2%)

 Non-White

206 (7.8%)

Tobacco use, no. (%)

 

 Never

1299 (49.2%)

 Past or current

1017 (38.6%)

Pre-operative pain intensity, 0–10 scale, mean (SD)

3.6 (2.9)

BMI, mean (SD), kg/m2

29.9 (5.7)

Comorbidity count, mean (SD)

0.6 (0.9)

TJA location, no. (%)

 

 Hip

1146 (43.4%)

 Knee

1265 (48.0%)

 Shoulder

227 (8.6%)

Number of surgeries, no. (%)

 

 1

2037 (77.2%)

 ≥ 2

601 (22.8%)

Data from survey responses

 

Survey time, mean (SD), days

176 (90.3)

Graded Chronic Pain Scale-Revised, no. (%)

 

 No chronic pain

1175 (44.5%)

 Mild chronic pain

485 (18.4%)

 Moderate chronic pain

693 (26.3%)

 High impact chronic pain

285 (10.8%)

Sleep, mean (SD)

46.6 (8.9)

Anxiety, mean (SD)

47.6 (8.0)

Dyspnea, mean (SD)

30.3 (8.7)

Physical function, mean (SD)

47.9 (8.6)

Pain interference, mean (SD)

48.7 (8.9)

  1. BMI, body mass index; SD, standard deviation; TJA, total joint arthroplasty
  2. PROMIS measures for sleep, anxiety, dyspnea, physical function, and pain interference are scored on a standardized scale ranging from 0 to 100