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. 2017 Jun 29;9(2):92–97. doi: 10.1136/flgastro-2017-100808

Table 1.

BAD diagnostic test yields (adapted from Valentin et al)19

Diagnostic test Average diagnostic yield 95% CI
Tauroselcholic (75selenium) acid 0.308 0.247 to 0.377
Total faecal bile acid secretion 0.255 0.071 to 0.606
Serum FGF19 0.248 0.147 to 0.385
Serum C4 0.171 0.134 to 0.217

FGF19, fibroblast growth factor 19.