: Data-Field 20079

Data-Field 20079

Description:	Day-of-week questionnaire completion requested
Category:	Online follow-up ⏵ Diet by 24-hour recall ⏵ Diet questionnaire performance
	Diet and alcohol summary + Lifestyle

Participants

210,847

Categorical (single)

Both sexes

Sep 2012

458,219

Data

Defined (5)

Oct 2012

Complete

Auxiliary

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Data

458,219 items of data are available, covering 210,847 participants, encoded using Data-Coding 73.
Defined-instances run from 0 to 4, labelled using Instancing 1.

Graph illustrating main data

5 Instances

Instance 0 : Conducted in assessment centre, April 2009 to September 2010.
70,653 participants, 70,653 items
Graph illustrating main data

Instance 1 : On-line cycle 1, February 2011 to April 2011.
100,513 participants, 100,513 items
Graph illustrating main data

Instance 2 : On-line cycle 2, June 2011 to September 2011.
83,196 participants, 83,196 items
Graph illustrating main data

Instance 3 : On-line cycle 3, October 2011 to December 2011.
103,694 participants, 103,694 items
Graph illustrating main data

Instance 4 : On-line cycle 4, April 2012 to June 2012.
100,163 participants, 100,163 items
Graph illustrating main data

Notes

During the online phase participants were emailed an invitation to complete the questionnaire and asked to complete it the same day if possible. This email contained a weblink to the server hosting the system.

1 Related Data-Field

Field ID	Description	Relationship
20078	When diet questionnaire completion r ...	Current Field is derived from Field 20078

1 Resource

Preview	Name	Res ID
	Online 24-hour dietary recall questionnaire	118240

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