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Table 1 Sociodemographic, pain-related, functional and psychological variables at baseline

From: The virtue of optimistic realism - expectation fulfillment predicts patient-rated global effectiveness of total hip arthroplasty

Sociodemographic variables and Body Mass Index
 Gender, No. 49 women; 41 men
 Age at examination, years, mean ± SD 63 ± 12.87
Degree of school education, No. (%)
 No graduation 1 (1%)
 „Haupt−/Volksschule “a 36 (40%)
 „Realschule/mittlere Reife“b 27 (30%)
 „Fachhochschule, Abitur, allg. Hochschule“c 26 (29%)
 Body Mass Index (BMI), kg/m2; mean ± SD 27.57 ± 4.66
Pain characteristics
 Average hip pain in the last 3 months before surgery, Numeric Rating Scale (0–10), median (1st; 3rd quartile) 6 (4; 7)
Overall severity of chronic pain condition, Chronic Pain Grade (von Korff), No. (%)
 Grade 1 15 (17%)
 Grade 2 20 (23%)
 Grade 3 17 (18%)
 Grade 4 38 (42%)
Pain chronicity, MPSSd, No. (%)
 Stage I (low) 36 (40%)
 Stage II (medium) 37 (41%)
 Stage III (high) 17 (19%)
Duration of hip pain, time intervals, No. (%)
 1 to 12 months 18 (20.1%)
 12 to 24 months 22 (24.4%)
 2 to 5 years 31 (34.4%)
 More than 5 years 19 (21.1%)
 Pressure pain threshold (PPT), kPa, mean ± SD 391.55 ± 179.35
Functional capacity
 Walking ability, Timed up and go test score, median level, (1st; 3rd quartile) 2 (2; 2)
 Hip function and mobility, WOMACe score, mean ± SD 53.09 ± 20.82
Psychological variables
 Health-related quality of life, SF-12f, mean ± SD
  SF-12 Physical 29.89 ± 7.85
  SF-12 Mental 49.23 ± 12.35
 Psychological distress, DASSg, median (1st; 3rd quartile)
  DASS Depression 3 (1; 5)
  DASS Anxiety 1 (0; 3)
DASS Stress 5 (2; 8)
 Somatization, PHQ-15h, median (1st; 3rd quartile) 5 (4; 8)
 Kinesiophobia, TSKi, median (1st; 3rd quartile) 36 (31; 41)
Cognitive appraisal of pain, KPIj, median (1st; 3rd quartile)
 Catastrophizing thought scale 2 (0.47; 3.11)
Helplessness scale 0.4 (0; 1.20)
 Thought suppression scale 2.75 (1.25; 3.75)
Fear of surgery, Numeric Rating Scale (0–10), median (1st; 3rd quartile) 3 (1; 6)
Fear of pain after surgery, Numeric Rating Scale (0–10), median (1st; 3rd quartile) 2 (1; 5)
  1. Descriptive statistics are based on N = 76–90 subjects due to varying numbers of missing data per variable
  2. a”Hauptschule” in Germany refers to the final examination at grade 9
  3. b”Realschule” finishes after grade 10 with the degree “mittlere Reife”
  4. c”Gymnasium” finishes with the final examination called “Abitur” after grade 13
  5. dMPSS Mainz Pain Staging System (Schmitt et al., [32])
  6. eWOMAC Western Ontario and McMaster Universities Osteoarthritis Index (Stucki et al., [33])
  7. fSF-12 short form of the Health Survey Questionnaire (Jenkinson et al., [34])
  8. gDASS Depression, Anxiety, Stress Scales (Nilges und Essau, [35])
  9. hPHQ-15 Patient Health Questionnaire (Kroenke et al. [36])
  10. iTSK Tampa Scale for Kinesiophobia (Roelofs et al. [37])
  11. jKPI Kiel Pain Inventory (Hasenbring, [38])