Human oral microbiome and prospective risk for pancreatic cancer: a population-based nested case-control study/Experiment 1

Reviewed Marked as Reviewed by Claregrieve1 on 2023/01/6

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): Claregrieve1, WikiWorks, ChiomaBlessing

Host species Species from which microbiome was sampled. Contact us to have more species added.: Homo sapiens

Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology: Saliva Sailva normalis,Saliva atomaris,Saliva molecularis,Salivary gland secretion,Saliva,saliva

Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology: Pancreatic carcinoma cancer of pancreas,cancer of the pancreas,carcinoma of exocrine pancreas,carcinoma of pancreas,carcinoma of the pancreas,exocrine cancer,exocrine pancreas carcinoma,exocrine pancreatic carcinoma,pancreas cancer,pancreas carcinoma,pancreatic cancer,pancreatic cancer (not islets),pancreatic carcinoma,pancreatic carcinoma, familial,Pancreatic carcinoma

Group 0 name Corresponds to the control (unexposed) group for case-control studies: controls

Group 1 name Corresponds to the case (exposed) group for case-control studies: pancreatic cancer cases

Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group: subjects from the two cohorts with incident primary pancreatic adenocarcinoma

Group 0 sample size Number of subjects in the control (unexposed) group: 371

16S variable region One or more hypervariable region(s) of the bacterial 16S gene: V3-V4

Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance: Roche454

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).: relative abundances

Significance threshold p-value or FDR threshold used for differential abundance testing (if any): 0.05

MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?: No

Matched on Factors on which subjects have been matched on in a case-control study: age, date, race, sex, Matched on: "cohort" is not in the list (abnormal glucose tolerance, acetaldehyde, acute graft vs. host disease, acute lymphoblastic leukemia, acute myeloid leukemia, adenoma, age, AIDS, alcohol consumption measurement, alcohol drinking, ...) of allowed values.cohort

Confounders controlled for Confounding factors that have been accounted for by stratification or model adjustment: age, alcohol drinking, body mass index, diabetes mellitus, race, sex, smoking status