: Data-Field 3720

Data-Field 3720

Description:	Menstruating today
Category:	Assessment centre ⏵ Touchscreen ⏵ Sex-specific factors ⏵ Female-specific factors
	Early life and reproductive factors

Participants

76,537

Categorical (single)

Females only

Jan 2012

80,805

Data

Defined (4)

Aug 2025

Complete

Primary

o1 s1

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Data

80,805 items of data are available, covering 76,537 participants, encoded using Data-Coding 100349.
Defined-instances run from 0 to 3, labelled using Instancing 2.

Graph illustrating main data

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
76,184 participants, 76,184 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
1,456 participants, 1,456 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
2,889 participants, 2,889 items
Graph illustrating main data

Instance 3 : First repeat imaging visit (2019+)
276 participants, 276 items
Graph illustrating main data

Notes

ACE touchscreen question "Are you menstruating today? (We are asking this as it may affect the urine sample that you have been asked to provide)"

Field 3720 was collected from all women except those who indicated that their periods had stopped (menopause) or not sure (had a hysterectomy), as defined by their answers to Field 2724

1 Related Data-Field

Field ID	Description	Relationship
2724	Had menopause	Current Field was collected from all women except those who indicated that their periods had stopped (menopause) or not sure (had a hysterectomy), as defined by their answers to Field 2724

2 Resources

Preview	Name	Res ID
	Screenshot from touchscreen questionnaire used to capture field 3720	100579
	Touchscreen questionnaire ordering, validation and dependencies	113241

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