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Insights into Imaging

Table 2 Demographic characteristics of patients suspected with rotator cuff tears

From: Enhancing prediction of supraspinatus/infraspinatus tendon complex injuries through integration of deep visual features and clinical information: a multicenter two-round assessment study

Characteristics

Training cohort

Internal validation cohort

External validation cohort

NIRCA (n = 483)

SRCT (n = 345)

p

NIRCA (n = 49)

SRCT (n = 40)

p

NIRCA (n = 28)

SRCT (n = 29)

p

Age (years, mean ± SD)

49.94 ± 14.20

57.28 ± 11.32

 < 0.001

51.29 ± 13.22

55.50 ± 12.25

0.126

49.94 ± 14.20

57.28 ± 11.32

0.408

Sex

  

0.013

  

1

  

0.9

Female

252 (52.17)

211 (61.16)

 

27 (55.10)

22 (55.00)

 

252 (52.17)

211 (61.16)

 

Male

231 (47.83)

134 (38.84)

 

22 (44.90)

18 (45.00)

 

231 (47.83)

134 (38.84)

 

Dominant side

  

 < 0.001

  

0.361

  

0.204

Dominant side

237 (49.07)

202 (58.55)

 

27 (55.10)

22 (55.00)

 

237 (49.07)

202 (58.55)

 

Non dominant side

202 (41.82)

89 (25.80)

 

11 (22.45)

13 (32.50)

 

202 (41.82)

89 (25.80)

 

Unknown

44 (9.11)

54 (15.65)

 

11 (22.45)

5 (12.50)

 

44 (9.11)

54 (15.65)

 

Degree of pain

  

0.002

  

0.468

  

0.6

Mild

153 (31.68)

73 (21.16)

 

13 (26.53)

7 (17.50)

 

9 (32.14)

5 (17.24)

 

Moderate

209 (43.27)

156 (45.22)

 

23 (46.94)

20 (50.00)

 

15 (44.12)

10 (43.48)

 

Severe

52 (10.77)

41 (11.88)

 

4 (8.16)

7 (17.50)

 

5 (14.71)

3 (13.04)

 

Unknown

69 (14.29)

75 (21.74)

 

9 (18.37)

6 (15.00)

 

8 (23.53)

5 (21.74)

 

History of trauma

  

 < 0.001

  

0.011

  

0.502

Present

138 (28.57)

148 (42.90)

 

14 (28.57)

23 (57.50)

 

12 (35.29)

11 (47.83)

 

Absent

345 (71.43)

197 (57.10)

 

35 (71.43)

17 (42.50)

 

22 (64.71)

12 (52.17)

 

Flex (deg, mean ± SD)

149.25 ± 34.52

150.45 ± 41.46

0.652

146.33 ± 37.06

145.47 ± 49.81

0.927

140.29 ± 38.41

138.65 ± 55.60

0.895

Abd (deg, mean ± SD)

139.82 ± 40.87

143.62 ± 46.21

0.212

136.14 ± 40.61

139.30 ± 53.19

0.752

133.26 ± 39.53

131.39 ± 56.22

0.883

ER (deg, mean ± SD)

49.74 ± 23.96

58.62 ± 19.86

 < 0.001

48.80 ± 22.51

58.60 ± 24.45

0.052

45.62 ± 24.15

58.00 ± 26.97

0.075

IR (deg, mean ± SD)

5.43 ± 3.08

4.43 ± 2.62

 < 0.001

5.12 ± 2.96

5.95 ± 8.99

0.546

6.15 ± 2.58

7.13 ± 11.61

0.634

ASES (n, mean ± SD)

60.27 ± 18.16

53.84 ± 18.82

 < 0.001

56.69 ± 16.93

55.75 ± 20.15

0.811

58.53 ± 14.45

57.83 ± 18.71

0.874

Constant-Murley (n, mean ± SD)

70.69 ± 14.40

66.24 ± 15.29

 < 0.001

69.41 ± 13.92

63.08 ± 19.72

0.08

68.26 ± 12.09

61.22 ± 18.81

0.09

Quick DASH (n, mean ± SD)

29.49 ± 15.42

33.34 ± 18.91

0.001

30.61 ± 16.36

34.20 ± 20.70

0.364

32.12 ± 15.66

34.70 ± 21.07

0.598

SST (n, mean ± SD)

6.64 ± 2.54

6.17 ± 2.88

0.015

6.14 ± 2.67

7.03 ± 5.75

0.342

5.91 ± 2.37

7.39 ± 6.93

0.254

UCLA (n, mean ± SD)

22.22 ± 5.20

21.29 ± 5.82

0.017

22.37 ± 5.68

20.65 ± 6.57

0.19

23.12 ± 4.89

20.30 ± 6.96

0.078

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