A systematic literature review of time to return to work and narcotic use after lumbar spinal fusion using minimal invasive and open surgery techniques.

BMC Health Serv Res · 2017 · PMC5488344 · PMID 28655308

Europe PMC DOI

hedged sentences

0.1400

closest p · 2.8× alpha

0.1400

boldest claim

The sentences

did not reach statistical significancep = 0.14not close (p > 0.1)

9 weeks); however, this substantial difference did not reach statistical significance ( p = 0.14) due to great variability in the post-operation narcotic use for both cohorts.

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likely to be significantno p-value reported

As the societal costs for these patients are likely to be significant, and the availability of studies with high quality is low, it is of great importance for future studies to include data collection regarding time to return to work and narcotic use during the post-operation follow-up period.

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a clear trendno p-value reported

Overall, a clear trend was observed that the employment rate was increased at 6 months after surgery.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.