The Diagnostic Accuracy of a Fecal Immunochemical Test in Detecting Colorectal Cancer and Advanced Precancerous Colorectal Neoplasia in Patients with Iron Deficiency: A Protocol for Systematic Review and Meta-Analysis

Table 2

Summary of items to be extracted from included studies.

Information area	Data to be extracted
Background	Authors
	Year of publication
	Year of study
	Aim of study
	Country of study
	Inclusion and exclusion criteria
	Study setting
	Population demographics
	Recruitment strategy
Methodology	Study type
	Definition of ID and anemia
	Definition for colorectal precancerous neoplasia
	FIT information including brand/company, number of samples, how FIT was performed, FIT positivity thresholds
	Colonoscopy procedure including quality and completeness
	Colonoscopy outcomes
	Time between FIT and colonoscopy
Results	Sample size
	Prevalence of CRC and precancerous neoplasia
	Sensitivity of FIT
	Specificity of FIT
	Raw data including true positives, true negatives, false positives, false negatives if available
	Other diagnostic accuracy data including positive predictive value, negative predictive value, odds ratio if available