Upper-room ultraviolet light and negative air ionization to prevent tuberculosis transmission.

PLoS Med · 2009 · PMC2656548 · PMID 19296717

Europe PMC DOI

hedged sentence

0.0900

closest p · 1.8× alpha

0.0900

boldest claim

The sentences

a nonsignificant trendp = 0.09so close (0.05 < p ≤ 0.1)

Time-to-event analysis demonstrated that there was a nonsignificant trend for UV lights to be more protective than ionizers against TB infection and disease (log rank 2.9; p = 0.09 and log rank 0.2; p = 0.6, respectively).

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