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Table 2 Number of examinations with respect to pain distribution. The number of radiological examinations in each subject from 1994 to 2002, for each of the three paingroups; chronic widespread pain (CWP), chronic regional pain (CRP, and those with no chronic pain (NCP).

From: The use and diagnostic yield of radiology in subjects with longstanding musculoskeletal pain – an eight year follow up

Pain group Number of subjects Number of examinations Exam's/subject
CWP 10 48 4.8
CRP 10 40 4.0
NCP 10 14 1.4
Total 30 102 3.4