Fig. 4

Forest plot: Effects of duloxetine in the interference of pain and quality of life measured by BPI-I: (A)general activity; (B)mood; (C) walking ability; (D) normal work; (E) relations with other people; (F) sleep; (G) enjoyment of life; (H) average interference. The black horizontal lines represent the 95% confidence intervals, while the squares represent the point estimate. The black diamond represents the overall point estimate and 95% confidence intervals