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Table 2 The 9-point rating scale

From: Protocol for the development of a core outcome set for pelvic girdle pain, including methods for measuring the outcomes: the PGP-COS study

  9-point scale
Outcome Not important Unsure of importance Important
Pain 1 2 3 4 5 6 7 8 9
  ○ ○ ○ ○ ○ ○ ○ ○ ○
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