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Table 3 Diagnostic accuracy of ALS criteria

From: The Gold Coast criteria increases the diagnostic sensitivity for amyotrophic lateral sclerosis in a Chinese population

 

rEEC % (95%CI)

Awaji % (95%CI)

Gold Coast % (95%CI)

P values

Total patients

 Sensitivitya

43.6 (40.8–46.5)

55.4 (52.5–58.3)

 

<0.001

 Specificitya

69.6 (47.0–85.9)

65.2 (42.8–82.8)

 

<0.001

 Sensitivityb

85.1 (82.9–87.1)

85.3 (83.2–87.3)

96.6 (95.3–97.5)

<0.001c

 Specificityb

30.4 (14.1–53.0)

30.4 (14.1–53.0)

17.4 (5.7–39.5)

0.004c

Bulbar-onset

 Sensitivitya

49.8 (44.0–55.7)

56.9 (51.0–62.6)

 

<0.001

 Sensitivityb

92.9 (89.2–95.5)

92.9 (89.2–95.5)

96.6 (93.7–98.3)

0.035c

Limb-onset

 Sensitivitya

41.3 (38.0–44.8)

54.7 (51.3–58.0)

 

<0.001

 Specificitya

69.6 (47.0–85.9)

65.2 (42.8–82.8)

 

<0.001

 Sensitivityb

82.3 (79.5–84.7)

82.6 (79.9–85.1)

96.5 (95.0–97.6)

<0.001c

 Specificityb

30.4 (14.1–53.0)

30.4 (14.1–53.0)

17.4 (5.7–39.5)

0.004c

Patients with EMG

 Sensitivitya

38.1 (34.8–41.4)

54.1 (50.7–57.5)

 

<0.001

 Specificitya

75.0 (50.6–90.4)

70.0 (45.7–87.2)

 

<0.001

 Sensitivityb

84.5 (81.8–86.8)

84.8 (82.2–87.1)

98.6 (97.5–99.2)

<0.001c

 Specificityb

30.0 (12.8–54.3)

30.0 (12.8–54.3)

15.0 (4.0–38.9)

0.018c

Patients without EMG

 Sensitivitya

59.2 (53.4–64.7)

  

 Specificitya

33.3 (1.8–87.5)

  

 Sensitivityb

86.9 (82.5–90.4)

90.8 (86.9–93.7)

<0.001

 Specificityb

33.3 (1.8–87.5)

33.3 (1.8–87.5)

0.333

  1. ALS amyotrophic lateral sclerosis, CI confidential interval, EMG electromyograph, rEEC revised El Escorial criteria
  2. a Only clinically definite or probable ALS were considered as positive findings
  3. b All diagnostic categories in rEEC and Awaji criteria were considered as positive findings
  4. c Awaji vs Gold Coast criteria