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55,977 items of data are available, covering 55,977 participants.
Some values have special meanings defined by Data-Coding 584
- There are 32 distinct values.
- Mean = 6.28433
- Std.dev = 7.29961
- 1998 items above graph maximum of 29
- 2972 items have value -818 (Prefer not to answer)
Question asked: When your headaches were at their worst, about how many days a month did you have a headache?
Only asked if Field 120053 was answered yes
Coding 584 defines 1 special value:
- -818 represents "Prefer not to answer"
0 Related Data-FieldsThere are no related data-fields