Elecsys cortisol 1010

Clinical and biochemical data were obtained from electronic medical records. Clinical data included demographic information, e.g., age, sex, and underlying diseases. Indications for ACTH stimulation testing were also collected. Biochemical factors such as serum albumin, creatinine, and cholesterol were acquired within 3 months before or following the tests. Serum 08:00 morning cortisol and basal cortisol levels were obtained using an electrochemiluminescence immunoassay (ECLIA) (Elecsys^® Cortisol 1010, Roche Diagnostics, Laval, QC, Canada). The intra- and inter-assay coefficients of variation for serum cortisol were <10%.

The demographics, underlying history, and clinical data for patients were retrieved from medical records of patients’ visits for ACTH stimulation tests. All biochemical data were collected within the 3 months prior to or following the tests. Data on the serum albumin, cholesterol, and creatinine obtained during acute illness episodes or within three months of admission were excluded. The measurement of serum cortisol levels was performed by an electrochemiluminescence immunoassay (ECLIA) (Elecsys^® Cortisol 1010, Roche Diagnostics, Laval, QC, Canada). The variation of intra- and inter-assay coefficients for serum cortisol was less than 10%.