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167,225 items of data are available, covering 167,225 participants, encoded using Data-Coding 502.
Counts of participants/items last updated 17 Apr 2021.
Question asked: Have you ever been told by a doctor that you have had complex regional pain syndrome (also known as CRPS)?
Prior to 2021 the question was incorrectly being asked as: "Have you ever been told by a doctor that you have had chronic regional pain syndrome (also known as CRPS)?" (italicised word used above only to emphasize the change).
See Field 120128 to determine date of questionaire completion.