Data
8,049 items of data are available, covering 8,049 participants.
Some values have special meanings defined by Data-Coding 
100291.
Units of measurement are years.
| Maximum | 84 |  
| Decile 9 | 60 |  
| Decile 8 | 53 |  
| Decile 7 | 50 |  
| Decile 6 | 45 |  
| Median | 40 |  
| Decile 4 | 35 |  
| Decile 3 | 29 |  
| Decile 2 | 24 |  
| Decile 1 | 18 |  
| Minimum | 2 |  
 
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- There are 83 distinct values.
 
- Mean = 39.4343
 
- Std.dev = 16.2329
 
- 40 items have value -3 (Prefer not to answer)
 
- 2267 items have value -1 (Do not know)
 
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Notes
Mental Well-being online question:"How old were you the FIRST time that you had a period of at least four days like this?"
Question was asked when Field 29052 was At least four days in a row but less than a week or A week or more
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
 
- -3 represents "Prefer not to answer"