Nonlinear association and predictive value of stress hyperglycemia ratio for 28-day in-hospital mortality in patients with acute hypoxemic respiratory failure.

Both unadjusted and adjusted models demonstrated highly significant nonlinear relationships (unadjusted: overall P = .002, nonlinearity P = .004; adjusted: overall P = .002, nonlinearity P = .002), indicating that the impact of SHR on prognosis is not linear but increases sharply beyond a threshold of 1.215.

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