{"entity": "publication", "iuid": "87de6819db864d1a8faa773b50d28977", "timestamp": "2026-08-29T04:23:08.512Z", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/87de6819db864d1a8faa773b50d28977.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/87de6819db864d1a8faa773b50d28977"}}, "title": "Reference Intervals for Fecal Calprotectin in Pregnant Women Using a Particle Enhanced Turbidimetric Assay.", "authors": [{"family": "Fall", "given": "Tove", "initials": "T"}, {"family": "Hedman", "given": "Anna", "initials": "A"}, {"family": "Pershagen", "given": "G\u00f6ran", "initials": "G"}, {"family": "Andolf", "given": "Ellika", "initials": "E"}, {"family": "Almqvist", "given": "Catarina", "initials": "C"}, {"family": "Helmersson-Karlqvist", "given": "Johanna", "initials": "J"}, {"family": "Larsson", "given": "Anders", "initials": "A"}], "type": "journal article", "published": "2019-07-01", "journal": {"title": "Clin. Lab.", "issn": "1433-6510", "volume": "65", "issue": "7", "issn-l": "1433-6510"}, "abstract": "Fecal calprotectin is widely used as a marker for inflammatory bowel diseases (IBD). IBD often affects women during their reproductive years, but there are no established reference intervals during pregnancy. The aim of the present study was to define reference values during pregnancy and in the postpartum period to allow comparisons between patient results and reference values.\n\nFecal samples were collected from 84 healthy females during pregnancy week 26 to 28 and a second sample was collected six months after delivery. The samples were weighed, extracted, and centrifugated to remove debris. The extracted samples were then analyzed on a chemistry analyzer using a particle enhanced turbidimetric immunoassay reagent.\n\nThe calculated reference interval during pregnancy was < 127 \u03bcg/g (90% confidence interval, 90 - 164 \u03bcg/g) and the corresponding reference interval during the postpartum period was < 143 \u03bcg/g (60 - 226 \u03bcg/g). There were no significant statistical differences between F-calprotectin values analyzed at the two sampling times.\n\nThe reference values are slightly higher than the cutoff values of 50 - 100 \u03bcg/g often used as General cutoff for fecal calprotectin.", "doi": "10.7754/Clin.Lab.2019.190104", "pmid": "31307176", "labels": [], "xrefs": [], "notes": [], "created": "2026-08-21T13:08:10.159Z", "modified": "2026-08-21T13:08:10.183Z"}