: Data-Field 30441

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Data

120,625 items of data are available, covering 120,625 participants.
Some values have special meanings defined by Data-Coding 2552.
Units of measurement are mins past midnight.

Maximum	1435
Decile 9	540
Decile 8	495
Decile 7	480
Decile 6	460
Median	450
Decile 4	420
Decile 3	420
Decile 2	390
Decile 1	360
Minimum	0

There are 252 distinct values.
Mean = 474.707
Std.dev = 168.864
178 items below graph minimum of 180
4834 items above graph maximum of 720
17126 items have value -4 (Varies significantly)
3013 items have value -3 (Prefer not to answer)

Notes

Sleep online question: "On non-working days in the past month, what time did you typically wake up? (By "wake up" we mean your final awakening time before getting up for the day) By non-working days, we mean any days that you did not work, including if you are retired."

Question was asked when Field 30431 was No - I didn't work or No - I worked standard hours or Yes - I worked evening shifts or Yes - I worked morning shifts or Yes - I worked night shifts or Yes - I worked rotating shifts or had irregular hours.

This question superseded the question in Field 30440 on 10th February 2023.

Coding 2552 defines 2 special values:

-4 represents "Varies significantly"
-3 represents "Prefer not to answer"

2 Related Data-Fields

Field ID	Description	Relationship
30440	Time typically woke up on a non-work ...	Field 30440 contains the same type of information as Current Field
30431	Worked a non-standard shift schedule ...	Field 30431 determines whether data is present for Current Field

1 Resource

Preview	Name	Res ID
	Online sleep questionnaire screenshot WAS8_ALT-WAS9_ALT	2283

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