: Data-Field 120055

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Data

55,944 items of data are available, covering 55,944 participants.
Some values have special meanings defined by Data-Coding 3018.

Maximum	924
Decile 9	600
Decile 8	480
Decile 7	420
Decile 6	324
Median	240
Decile 4	168
Decile 3	96
Decile 2	36
Decile 1	6
Minimum	1

There are 87 distinct values.
Mean = 273.65
Std.dev = 225.186
3436 items have value -818 (Prefer not to answer)
736 items have value -98 (0 months ago)
1004 items have value -97 (0 years ago)

Notes

Question asked: Think about the time when those headaches were at their worst. About how long ago, in months, did those headaches begin?

Only asked if Field 120053 was answered yes

Coding 3018 defines 3 special values:

-818 represents "Prefer not to answer"
-98 represents "0 months ago"
-97 represents "0 years ago"

0 Related Data-Fields

There are no related data-fields

2 Resources

Preview	Name	Res ID
	Experience of pain questionnaire description	2718
	Online pain questionnaire screenshot E2-E4	1370

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