TABLE II.

Features of Rotator Cuff Disease in the Cohort

	No. of Patients	Female (N = 190)	Male (N = 203)
Duration of symptoms	390
<1 mo		6% (12/189)	9% (18/201)
1-3 mo		22% (41/189)	22% (44/201)
4-6 mo		22% (41/189)	18% (37/201)
7-12 mo		18% (34/189)	11% (23/201)
>12 mo		32% (61/189)	39% (79/201)
Involved tendons	383
Supraspinatus		75% (139/186)	70% (137/197)
Supraspinatus + infraspinatus ± teres minor		20% (37/186)	22% (44/197)
Subscapularis		5% (10/186)	8% (16/197)
Retraction	390
Minimal		49% (92/188)	48% (96/202)
Midhumeral		34% (63/188)	35% (70/202)
Glenohumeral		13% (25/188)	12% (25/202)
Glenoid		4% (8/188)	5% (11/202)
Superior migration	380
No		87% (163/187)	82% (158/193)
Yes		13% (24/187)	18% (35/193)
Torn tendons	384
1		75% (139/186)	70% (139/198)
≥2		25% (47/186)	30% (59/198)
MRI quantity of supraspinatus	387
Normal		40% (74/186)	53% (107/201)
<25% atrophy		31% (58/186)	22% (45/201)
25-50% atrophy		22% (40/186)	13% (27/201)
50-75% atrophy		6% (12/186)	7% (15/201)
Complete atrophy		1% (2/186)	3% (7/201)
Acromion shape	377
Type I		13% (23/182)	10% (20/195)
Type II		70% (127/182)	73% (142/195)
Type III		18% (32/182)	17% (33/195)
Acromiohumeral interval* (mm)	339	8.0, 10.0, 11.0 (9.8 ± 6.8)	8.0, 10.0, 11.0 (10.2 ± 7.2)

^*The values are given as the lower quartile, median, upper quartile (mean and standard deviation).