From: The utility of superficial abdominal reflex in the initial diagnosis of scoliosis: a retrospective review of clinical characteristics of scoliosis with syringomyelia
Syringomyelia
No syringomyelia
Total
Flexibility ≥ 50%
6
17
23
PPV 26%
Flexibility < 50%
0
29
NPV 100%
46
52
Sensitivity 100%
Specificity 63%