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Table 4 The mean difference across all time points for different recall periods

From: Responsiveness of different pain measures and recall periods in people undergoing surgery after a period of splinting for basal thumb joint osteoarthritis

  Estimate 95% CI p
Pain NRS, past day 3.53a 1.7 to 5.4 (ref.) ref.
Pain NRS, past week 0.29 0.06 to 0.52 0.011
Pain NRS, past month 0.56 0.33 to 0.78 < 0.001
  1. a Mean value across all time points (reference); other estimates indicate the difference compared to reference (past day