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. 2018 Jun 26;10:349–357. doi: 10.2147/CEOR.S164129

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© 2018 Klassen et al. This work is published and licensed by Dove Medical Press Limited

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A significantly greater socioeconomic burden is associated with reoperation. The reoperated patients spent significantly more time in the hospital following severe adverse events (SAEs) (A) and significantly fewer reoperated patients had returned to work by 2 years of post-index surgery (B). ****p<0.0001 by Mann–Whitney test in (A) and by Fisher’s exact test in (B). Bars in (A) represent the mean and error bars are standard error of the mean. Bars in (B) represent the proportion and error bars are the binomial 95% CI.