Nepali translation, cross-cultural adaptation and measurement properties of the Shoulder Pain and Disability Index (SPADI)

Table 3 Reliability and validity measures of the SPADI-NP

Measurement properties	SPADI—pain	SPADI—disability	Total SPADI-NP
Internal consistency (Cronbach’s α)	0.82	0.88	0.90
Test-retest reliability ICC (95%CI)	0.89 (0.80–0.95)	0.96 (0.92–0.98)	0.95 (0.90–0.97)
MDC			5.7 (out of 100)
SEM			2.1 (out of 100)
Construct validity
DASH-NP—pain	r = 0.63*
DASH-NP—disability		r = 0.81*
GROC-NP			r = −0.41*

CI confidence interval, DASH-NP Nepali Disability of Arm, Shoulder and Hand score, GROC-NP Nepali Global Rating of Change, ICC intraclass correlation coefficient, MDC minimal detectable change, SEM standard error of measurement, SPADI-NP Nepali Shoulder Pain and Disability Index
*Significance p < 0.001

ISSN: 1749-799X