Table 1

Frequencies of Ultrasound-Diagnosed Rotator Cuff Disorders and Predictive Factors (N = 129 Patients)

Variable	n/n (%)	Univariate Analysis OR (95% CI)	P Value
No disorder	24/129 (18.6)
Rotator cuff disease present	105/129 (81.4)
Age ≥40 y	96/106 (90.6)	14.93 (5.17–43.14)	<.001
Sex, female	56/129 (43.4)	0.89 (0.36–2.16)	.79
Occupational risk	40/129 (31.0)	0.88 (0.34–2.26)	.79
Specific disorder
Calcific tendonitis	65/129 (50.4)
With other rotator cuff disorder	39/65 (60.0)
Age ≥40 y	63/106 (59.4)	15.38 (3.43–69.04)	<.001b
Tendinopathy	37/129 (28.7)
With other rotator cuff disorder	28/37 (75.7)
Age ≥40 y	33/106 (31.1)	2.15 (0.68–6.81)	.19^b
SASD bursitis	26/129 (20.2)
With other rotator cuff disorder	23/26 (88.5)
Age ≥40 y	26/106 (24.5)	…^a	.004^b
Partial-thickness tear	25/129 (19.4)
With other rotator cuff disorder	16/25 (64.0)
Age ≥40 y	22/106 (20.8)	1.75 (0.48–6.41)	.56^b
ACJ-osteoarthritis	16/129 (12.4)
With other rotator cuff disorder	11/16 (68.8)
Age ≥40 y	16/106 (15.1)	…^a	.07^b
Full-thickness tear	4/129 (3.1)
With other rotator cuff disorder	4/4 (100)
Age ≥40 y	4/106 (3.8)	…^a	>.99^b
Impingement	21/129 (16.3)
Age ≥40 y	20/106 (18.9)	5.12 (0.65–40.23)	.12^b

Note: One patient had a biceps tendosynovitis.

ACJ = acromioclavicular joint; OR = odds ratio; SASD = subacromial-subdeltoid.
↵a Odds ratio not provided; expected count in 1 of the cells is 0.
↵b Fisher’s exact test.