Comparison of methods of extracting information for meta-analysis of observational studies in nutritional epidemiology.

ABSTRACT:

Objectives

A common method for conducting a quantitative systematic review (QSR) for observational studies related to nutritional epidemiology is the "highest versus lowest intake" method (HLM), in which only the information concerning the effect size (ES) of the highest category of a food item is collected on the basis of its lowest category. However, in the interval collapsing method (ICM), a method suggested to enable a maximum utilization of all available information, the ES information is collected by collapsing all categories into a single category. This study aimed to compare the ES and summary effect size (SES) between the HLM and ICM.

Methods

A QSR for evaluating the citrus fruit intake and risk of pancreatic cancer and calculating the SES by using the HLM was selec

SUBMITTER: Bae JM 

PROVIDER: S-EPMC4751349 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature