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“showed a trend”

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Brief Pain inventory (BPI) Results of the BPI showed a trend in the reported reduction of mean pain severity from 5.0 (ten-point scale) to 3.7 [-1.20 (95 % CI: -1.66 to -0.75)], and these scores were maintained at three months [-1.12 (95 % CI: -1.65 to -0.58)] (see Fig. 2 and Table 1 ).