Effect of introduction of a standardised peri-operative protocol on CSF shunt infection rate: a single-centre cohort study of 809 procedures.

Childs Nerv Syst · 2018 · PMC6224013 · PMID 30132097

Europe PMC DOI

hedged sentences

0.0600

closest p · 1.2× alpha

0.0600

boldest claim

The sentences

not quite statistically significantp = 0.06so close (0.05 < p ≤ 0.1)

A relatively large difference was also noted between the proportion of patients in the post-protocol group with post-IVH as their presenting diagnosis compared to the pre-protocol group (18.0% compared to 28.6%), another factor described in literature as associated with infection [ 15 ], although this difference was not quite statistically significant ( p = 0.06).

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did not reach statistical significanceno p-value reported

Overall infection rate decreased from 5.43% (24/442) pre-protocol to 3.27% (12/367) post-protocol (ARR = 2.16%, RRR = 39.8%, NNT = 46.3, p = 0.138), which did not reach statistical significance.

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