Table 1: Summary of the study measures.

Construct	Perspective of Score		Measuring Tool		Score Unit/Range		Reliability
Outcome (Dependent) Variables
Pain	Self-report Self-report Self-report		Shoulder Pain and Disability Index (SPADI) – Pain Subscale [24-26] Numeric rating scale (NRS) of Pain [27-29] Pain Catastrophizing Scale (PCS) [30]	0-10 (5 pain items) 11 grade (0-10) pain rating scale 0-4 (13 items)		ICC ≥ 0.89, α > 0.90 [26] Sensitivity=71% (for score of 1) [27, 28], ICC=.74 [29] α = 0.92 (with outpatients) [33]
Functional	Timed performance Self-report Self-report		FIT-HaNSA (Functional Impairment Test-Head and Neck, Shoulder, Arm) [32] Shoulder Pain and Disability Index (SPADI) – Disability Subscale [24-26, 57] QuickDASH (Disabilities of the Arm, Shoulder and Hand) [29, 34-39]	Average time in second for the 3 tasks that require lifting at waist-level, lifting at eye-level or overhead manipulation for up to 5 minutes. 0-10 (8 disability items) Disability/symptom (11 items, scored 1-5)		ICC have ranged from .79-.98 [10] ICC ≥ .89, α > .90 [26] ICC=.90-.94 [36, 37]
Health Status	Self-report : Physical and Mental Component Summary (PCS and MCS)		SF-12 (v2 health survey) [40]	0-5 (12 items), finally PCS and MCS scores are converted range of 0 to 100		ICC ≥ .77, α > .77 [58, 59]
Predictor (Independent) Variables: Psychophysical factors
Pressure Pain Sensitivity	Pressure pain threshold and pain tolerance		Computerized JTech algometer [43]	Pressure level at uncomfortable and intolerable are determined in muscle and bone		ICC range = .73-.99 [41, 42]
Vibration Sensation Threshold	Threshold value of vibration sensation		JTech vibrometer [46]	50Hz Ramped protocol and threshold determined in micrometers.		ICC = .86- .89 [46]
Current Perception Threshold	Threshold value of current perception		Neurometer CPT/C [47, 48, 54]	1-25 (R-CPT protocol, 5Hz)		Sensitivity = 73-92% [47, 48, 54]
Patient factor (Covariate )
Comorbidity	Self-report		Katz comorbidity index [10]	0-3 (12 items score)		ICC = .91 [55]