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

Table. 4.

Relationship Between Rectosigmoid Accumulation and the Findings of Anorectal Tests

Positive findings on anorectal tests RS accumulation Sensitivity (%) Specificity (%) PPV (%) NPV (%) +LR −LR
≥ 80%
(n = 39)
< 80%
(n = 130)
Dyssynergic pattern on ARM 36/39 122/130 22.8 72.7 92.3 6.2 0.84 1.06
Impaired evacuation on a BET 23/39 52/130 30.7 83.0 59.0 60.0 1.81 0.83
Impaired evacuation on BD 9/16 35/67 20.5 82.1 56.3 47.8 1.15 0.97
DD met the Rome criteria 25/39 54/130 31.6 84.4 64.1 58.5 2.03 0.81
Discriminating DD from NTC 5/15 42/88 10.6 82.1 33.3 52.1 0.59 1.09
Discriminating DD from STC 20/24 12/42 62.5 88.2 83.3 74.1 5.31 0.43

RS, rectosigmoid; PPV, positive predictive value; NPV, negative predictive value; +LR, positive likelihood ratio; −LR, negative likelihood ratio; ARM, anorectal manometry; BD, barium defecography; DD, defecation disorders; NTC, normal transit constipation; STC, slow transit constipation.

J Neurogastroenterol Motil 2021;27:419~425 https://doi.org/10.5056/jnm20204
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