Hydrolyzed chicken extract (ProBeptigen®) on sleep quality in healthy individuals: a secondary analysis of PSQI global and component scores from a randomized double-blind trial.

Front Nutr · 2026 · PMC13181736 · PMID 42158262

Europe PMC DOI

hedged sentences

0.0640

closest p · 1.3× alpha

0.0640

boldest claim

The sentences

did not reach statistical significancep = 0.064so close (0.05 < p ≤ 0.1)

Additionally, subjects who took ProBeptigen® showed a numerically greater improvement in daytime function (PSQI component 7) compared to those who took placebo, although this difference did not reach statistical significance ( Table 1 , p = 0.064).

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showed a trendno p-value reported

The improvement in the PSQI subjective sleep quality component score was significantly associated with changes in BDI scores and showed a trend toward association with PSS scores.

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