Clinical endocrinology
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There is no consensus on adequate adrenal response to critical illness. We aimed to evaluate adrenal function in critically ill children and its association with clinical outcome. We hypothesized that salivary cortisol would be a more appropriate tool to evaluate adrenal function in critically ill children. ⋯ Adrenal insufficiency defined by the 'delta criterion' was not associated with outcome. A post-ACTH salivary cortisol of ≤226 nm (8·2 μg/dl) may be suggestive of an insufficient adrenal response to critical illness.