Table 2: Participant demographics and measures and demographics, mean (standard deviation).

Construct Measure Surgical group (n=34) Non-Surgical group (n=10) Overall (n=44)
Pain SPADI-Pain 57.1 (27.1) 37 (17) 52.5 (26.4)
NRS of Pain 2.21 (2.3) 2.00 (1.6) 2.2 (2.1)
PainCS 16.7 (15.6) 13.7 (16) 16 (15.5)
Function FIT-HaNSA 158.5 (95.1) 183.3 (65.4) 164.2 (89)
SPADI-Disability 36.4 (27.9) 19.4 (14) 32.5 (26.3)
QuickDASH 38.2 (21.8) 23.9 (19.4) 34.8 (21.9)
Health Status SF12-PCS  39.5 (9.8)  47.8 (8.5)  41.4 (10.1)
SF1-2MCS 49.5 (12.3) 45.1 (12.1) 48.5 (12.2)
Psychophysical QSTs PPThSh 8.4 (5.9) 4.5 (1.9) 7.5 (5.5)
PPToSh 16.5 (11.9) 9.2 (3.4) 14.8 (11)
PPThT 7.1 (3.6) 4.9(2.2) 6.6 (3.5)
PPToT 11.5 ( 6.1) 6.5 (2.2) 10.3 ( 5.8)
VTD3 11.7 ( 8.5) 7 (2.1) 10.7 (7.8)
VTD5 16.7 (25.6) 17.6 (30.2) 16.9 (26.3)
CPTD3 10.6 ( 2.9) 8.6 (3.6) 10.1 (3.1)
CPTD5 10.9 (2.4) 10 (1.8) 10.7 (2.3)
CPTSh 8.6 (2.2) 8.1 (2.6) 8.5 (2.3)
Patient Factors Age (years) 46 (16.4) 44.2 (17.5) 45.6 (16.4)
Gender M= 25 (74%), F= 9 (26%) M= 2 (20%), F= 8 (80%) M=27 (61%), F=17 (39%)
Comorbidity 4.1 (4.2) 3.9 (1.9) 4.1 ( 3.8)
Other Demographics
Dominant side R=29 (85%), L=5 (15%) R=10 (100%) R=39 (89%), L=5 (11%)
Affected side R=13 (38%), L=21 (62%) R=5 (50%), L=4 (40%), B=1(10%) R=18 (41%), L=25 (57%), R+L=1(2%)

Abbreviations: CPTD3, Current Perception Threshold at digit 3 (middle finger); CPTD5, Current Perception Threshold at digit 5 (little finger); CPTSh, Current Perception Threshold at Shoulder (mid-deltoid); DASH, Disabilities of the Arm, Shoulder and Hand; F= female; FIT-HaNSA, (Functional Impairment Test-Head and Neck, Shoulder, Arm); L, Left; M, Male; MCS, Mental Component Summary; NRS, Numeric Rating Scale; n, number of participants; PainCS, Pain Catastrophizing Scale; PCS, Physical Component Summary; PPThSh, Pressure Pain Threshold at Shoulder (mid-deltoid); PPThT, Pressure Pain Threshold at Tibia (Shinbone); PPToSh, Pressure Pain Tolerance at Shoulder (mid-deltoid); PPToT, Pressure Pain Tolerance at Tibia (Shinbone); QST, Quantitative Sensory Testing; R, Right; SF12, Short Form 12-item health survey version 2; SPADI, Shoulder Pain and Disability Index; VTD3, Vibration Threshold at digit 3 (middle finger); VTD5, Vibration Threshold at digit 5 (little finger).