Table 2.

Percent Change from Baseline (95% Confidence Intervals (CI)) by Level of Global Perceived Effect (GPE)

	N (%)	average pain −% (CI)	worst pain −% (CI)	RM −% (CI)
total	521 (100)	77% (73.3 – 80.8)	74% (70.3 – 76.7)	76% (72.4 – 78.9)
completely recovered	169 (32)	100%	100	97% (95.7 – 97.9)
much improved	254 (49)	81% (76.2 – 85.3)	73% (69.2 – 77.0)	78% (74.3 – 80.8)
slightly improved	51 (10)	41% (27.1 – 55.3)	37% (26.7 – 48.3)	41% (24.6 – 56.8)
same	31 (6)	27% (8.8 – 45.8)	29% (15.7 – 42.2)	41% (30.5 – 51.2)
slightly worse	9 (2)	13% (−23.5 – 50.3)	18% (4.3 – 31.5)	0% (−81.0 – 80.8)
much worse	7 (1)	−54% (−137 – 30.2)	−20% (−74.0 – 34.9)	2% (−36.4 – 40.2)

−%: mean percentage of improvement/change from baseline [range −100 to +100]; negative value indicates worsening of the parameter.