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. Author manuscript; available in PMC: 2014 Aug 8.
Published in final edited form as: Respir Care. 2013 Apr;58(4):639–646. doi: 10.4187/respcare.01956

Table 3.

Risk of Hospital Mortality in Subjects With CIRCI, Non-Responsiveness to Cosyntropin

Crude Relative Risk (95% CI) for Hospital Mortality Adjusted Relative Risk (95% CI) for Hospital Mortality*
CIRCI vs no CIRCI (reference group) 1.32 (1.08–1.61) 1.31 (1.07–1.59)
Non-responders vs responders (reference group)§ 1.68 (1.38–2.05) 1.57 (1.29–1.92)
Adjusted for hypoproteinemia (albumin ≤ 2.5 g/dL)
 CIRCI vs no CIRCI (reference group) 1.44 (1.18–1.77)
 Non-responders vs responders (reference group) 1.64 (1.34–2.00)
*

All analyses adjusted for age, sex, and Simplified Acute Physiology Score (SAPS II).

In this comparison, 52 subjects had baseline cortisol of ≥ 10 μg/dL and Δ max of ≤ 9 μg/dL but were missing their 60-min post-stimulation results, precluding definitive diagnosis of CIRCI. We omitted those subjects. Including them by using their 30-min result provided an adjusted relative risk of 1.23 (95% CI 1.02–1.48).

Non-responsiveness was defined as a Δ max of ≤ 9 μg/dL following administration of cosyntropin.

§

In this comparison, 57 subjects had 30-min results ≤ 9 μg/dL but were missing data for their 60-min post-stimulation reading, precluding definitive diagnosis of non-responsiveness. We omitted those subjects. Including them by using their 30-min result provided an adjusted relative risk of 1.56 (95% CI 1.29–1.89)

CIRCI = critical illness-related corticosteroid insufficiency, defined as a random total cortisol < 10 μg/dL and/or a Δ max cortisol following cosyntropin administration of < 9 μg/dL