A retrospective study of demographic and lifestyle factors associated with caffeine and dietary supplement use

Not Applicable

Completed

• Conditions: Caffeine and dietary supplement intake and various demographic and lifestyle data and adverse outcomes; Nutritional, Metabolic, Endocrine

• Registration Number: ISRCTN15296828
• Lead Sponsor: S Army Research Institute of Environmental Medicine

Brief Summary

2019 Results article in https://www.ncbi.nlm.nih.gov/pubmed/30446428 daily pattern of caffeine intake and demographics (added 15/01/2019) 2020 Results article in https://pubmed.ncbi.nlm.nih.gov/31628471/ Shift workers (added 21/11/2023)

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Completion: 2016-12-31
• Study Start: 2017-10-20
• Last Update Posted: 4 December 2023

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 0

Inclusion Criteria

All data to be used have previously been collected and is part of an existing national public database (NHANES) accessible to the public through the Centers for Disease Control website on the World Wide Web (National Health and Nutrition Examination Survey; http://cdc.gov/NCHS/nhanes.htm). This data does not contain any personal identifiers.

Exclusion Criteria

This is an epidemiological retrospective investigation. Data will be extracted from a preexisting public database – a nationally representative survey of the US population.

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The extent and patterns of use of caffeine and DS and possible adverse effects in the civilian population, extracted from the National Health and Nutrition Examination Survey

Secondary Outcome Measures

Name	Time	Method
Reference population data for interpreting findings on caffeine and DS use by military personnel, extracted from the National Health and Nutrition Examination Survey