Factor structure and validity of the shoulder pain and disability index in a population-based study of people with shoulder symptoms

Table 2 Baseline characteristics of study participants

Patient Characteristics	N	Mean (Range)
SPADI pain subscale	588	34.5 (0, 100)
SPADI disability subscale		21.7 (0, 100)
SPADI Total		26.6 (0.8, 100)
Shoulder range of motion (worst shoulder score)
abduction	531	123 (10, 177)
flexion		138 (10, 180)
external rotation		44 (0, 90)
SF-36 PCS	538	39.6 (10.9, 65.8)
SF-36 MCS		50.6 (9.2, 70.1

ISSN: 1471-2474