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Table 4 Effect sizes of socio-demographic and clinical variables with respect to patient-centered outcomes of surgical release of carpal tunnel syndrome

From: Predictors of the patient-centered outcomes of surgical carpal tunnel release – a prospective cohort study

  Distal motor latencies Distal sensory latencies BQ score of symptoms BQ score of function NRS-PS WHO-Five well-being index Subjective quality of life
  Beta (95%CI) P Partial η2 Beta (95 % CI) P Partial η2 Beta (95 % CI) P Partial η2 Beta (95 % CI) P Partial η2 Beta (95 % CI) P Partial η2 Beta (95 % CI) P Partial η2 Beta (95 % CI) P Partial η2
Age 0.09 (−0.15, 0.34) 0.45 0.01 0.32 (0.01, 0.64) 0.05 0.08 0.1 (0, 0.2) 0.05 0.07 0.05 (−0.06, 0.17) 0.34 0.02 −0.43 (−0.83, −0.03) 0.03 0.10 −0.12 (−3.56, 3.32) 0.95 0.00 −3.59 (−11.09, 3.9) 0.34 0.02
Sex   0.05 0.07   0.05 0.07   0.29 0.02   0.26 0.03   0.04 0.09   0.10 0.05   0.91 0.00
 Female Ref    Ref    Ref    Ref    Ref    Ref    Ref   
 Male 0.82 (0.01, 1.63)    0.98 (0, 1.96)    0.16 (−0.14, 0.47)    0.19 (−0.15, 0.53)    −1.27 (−2.47, −0.06)    8.48 (−1.65, 18.62)    1.21 (−19.41, 21.83)   
Smoking status   0.08 0.09   0.61 0.02   0.06 0.10   0.34 0.04   0.18 0.07   0.67 0.02   0.92 0.003
 Non-smoker Ref    Ref    Ref    Ref    Ref    Ref    Ref   
 Current smoker −0.22 (−1.07, 0.63)    0.11 (−0.91, 1.13)    −0.37 (−0.71, −0.04)    −0.27 (−0.66, 0.13)    1.15 (−0.24, 2.53)    4.57 (−6.61, 15.76)    1.19 (−21.92, 24.29)   
 Former smoker 0.95 (−0.06, 1.95)    0.57 (−0.63, 1.77)    −0.29 (−0.69, 0.12)    −0.15 (−0.58, 0.28)    0.89 (−0.64, 2.43)    3.42 (−9.69, 16.53)    −4.56 (−32.75, 23.64)   
Education   0.19 0.06   0.38 0.04   0.82 0.01   0.43 0.04   0.85 0.01   0.31 0.05   0.79 0.01
 Low Ref    Ref    Ref    Ref    Ref    Ref    Ref   
 Intermediate −0.78 (−1.86, 0.3)    −0.64 (−1.88, 0.6)    0.06 (−0.38, 0.49)    −0.28 (−0.78, 0.23)    −0.44 (−2.1, 1.23)    10.6 (−3.99, 25.2)    1.14 (−28.85, 31.13)   
 High 0.9 (−1.16, 2.96)    0.89 (−1.42, 3.19)    −0.21 (−1.03, 0.61)    −0.29 (−1.13, 0.54)    −0.3 (−3.38, 2.77)    −2.49 (−28.46, 23.47)    −16.64 (−69.38, 36.1)   
Body mass index 0.02 (−0.05, 0.08) 0.60 0.01 0.04 (−0.03, 0.12) 0.24 0.03 0 (−0.02, 0.03) 0.90 0.00 0 (−0.02, 0.03) 0.84 0.001 −0.03 (−0.13, 0.08) 0.62 0.01 0.32 (−0.45, 1.09) 0.41 0.01 −0.23 (−1.72, 1.26) 0.75 0.002
Job type (Latko scale)   0.70 0.005   0.86 0.001   0.47 0.02   0.69 0.01   0.30 0.04   0.77 0.003   0.32 0.03
 Non-repetitive (1–7 points on Latko scale) Ref    Ref    Ref    Ref    Ref    Ref    Ref   
 Repetitive (8–10 points on Latko scale) 0.14 (−0.59, 0.87)    −0.08 (−1, 0.85)    0.08 (−0.15, 0.31)    −0.05 (−0.28, 0.19)    −0.54 (−1.57, 0.5)    1.79 (−10.62, 14.19)    −10.4 (−31.21, 10.42)   
WHO-Five well-being index at baseline −0.09 (−0.28, 0.11) 0.38 0.02 −0.06 (−0.29, 0.17) 0.59 0.01 −0.07 (−0.15, 0.01) 0.10 0.06 −0.08 (−0.16, 0.01) 0.09 0.10 0.05 (−0.29, 0.39) 0.77 0.002 / / / 0.3 (−5.79, 6.39) 0.92 0.00
Dominant hand affected   0.45 0.01   0.21 0.03   0.44 0.01   0.14 0.05   0.57 0.01   0.18 0.04   0.66 0.004
 No 0.41 (−0.67, 1.49)    −0.76 (−1.97, 0.45)    −0.17 (−0.59, 0.26)    −0.34 (−0.8, 0.11)    0.47 (−1.21, 2.15)    −9.77 (−24.37, 4.82)    −6.62 (−36.49, 23.26)   
 Yes Ref    Ref    Ref               
Severity of CTS / / / / / /   0.69 0.01   0.52 0.03   0.16 0.07   0.21 0.06   0.52 0.03
 Normal/mild / / / / / / Ref    Ref    Ref    Ref    Ref   
 Moderate / / / / / / −0.09 (−0.53, 0.34)    −0.16 (−0.61, 0.28)    −0.28 (−1.95, 1.39)    −3.05 (−16.29, 10.19)    −8.22 (−36.92, 20.47)   
 Severe / / / / / / 0.05 (−0.39, 0.48)    0.03 (−0.4, 0.46)    −1.27 (−2.96, 0.42)    6.28 (−7.49, 20.04)    −15.14 (−43.28, 13.01)   
Family history of CTS   0.39 0.01   0.04 0.08   0.36 0.02   0.19 0.04   0.01 0.13   0.003 0.16   0.87 0.001
 No Ref    Ref    Ref    Ref    Ref    Ref    Ref   
 Yes −0.35 (−1.17, 0.46)    −0.91 (−1.77, −0.05)    −0.14 (−0.45, 0.17)    −0.22 (−0.55, 0.11)    1.49 (0.34, 2.63)    −14.2 (−23.4, −5)    1.71 (−18.8, 22.23)   
Thumb opposition   0.53 0.01   0.27 0.02   0.41 0.01   0.14 0.10   0.19 0.04   0.99 0.00   0.72 0.003
 No Ref    Ref    Ref    Ref    Ref    Ref    Ref   
 Yes −0.25 (−1.06, 0.55)    −0.5 (−1.41, 0.41)    −0.12 (−0.41, 0.17)    −0.22 (−0.5, 0.07)    0.84 (−0.42, 2.11)    −0.04 (−10.49, 10.4)    3.76 (−17.16, 24.67)   
Presence of muscular atrophy in thenar area   0.53 0.01   0.84 0.001   0.03 0.10   0.07 0.10   0.88 0.001   0.01 0.13   0.01 0.13
 No Ref    Ref    Ref    Ref    Ref    Ref    Ref   
 Yes 0.23 (−0.49, 0.95)    0.1 (−0.85, 1.04)    0.35 (0.04, 0.65)    0.3 (−0.03, 0.63)    −0.1 (−1.35, 1.15)    −12.98 (−23.1, −2.85)    −26.36 (−47.31, −5.42)   
  1. Classification of partial eta-squared: 0.01 = small, 0.06 = medium, and 0.14 = large [24]
  2. NRS-PS Perceived strength in the affected hand, Ref Reference category