Journal of Neurogastroenterology and Motility : eISSN 2093-0887 / pISSN 2093-0879

Table. 3.

Test Characteristics According to the Cutoff Value of Reflux Symptom Index Score to Diagnose Gastroesophageal Reflux Disease in Patients With Suspected Laryngopharyngeal Reflux Symptoms

Cutoff score of RSI Sensitivity%(95% CI) Specificity%(95% CI) PPV%(95% CI) NPV%(95% CI)
23 42.9
(17.7-71.1)
69.5
(58.4-79.2)
19.4
(7.5-37.5)
87.7
(77.2-94.5)
24 42.9
(17.7-71.1)
75.6
(64.9-84.4)
23.1
(9.0-43.6)
88.6
(78.7-94.9)
25 42.9
(17.7-71.1)
79.3
(68.9-87.4)
26.1
(10.2-48.4)
89.0
(79.5-95.1)
26 35.7
(12.8-64.9)
80.5
(70.3-88.4)
23.8
(8.2-47.2)
88.0
(78.4-94.4)
27 35.7
(12.8-64.9)
84.1
(74.4-91.3)
27.8
(9.7-53.5)
88.5
(79.2-94.6)

RSI, Reflux symptom index; PPV, positive predictive value; NPV, negative predictive value.

J Neurogastroenterol Motil 2022;28:599~607 https://doi.org/10.5056/jnm21235
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