Endocrine Abstracts

Having been known as a reliable tool for assessing the Hypothalamus-Pituitary-Adrenal (HPA) axis, measurement of salivary cortisol plays an important role in both the clinical settings and the researches. To establish a normative data, which forms the basis for the usage of this valuable parameter, we gathered 8:00 h saliva samples from 94 healthy individuals aged 6-14 years. Cortisol levels were measured by radioimmunoassay technique, using Orion Diagnostica`s coated tube technology. Based on Mean+/-2SD(standard deviation), we established a normal range for salivary cortisol concentrations in this age group: 1.69 upto 12.81 nmol/L. Considering a confidence interval for upper and lower limits, there was an upper limit equal to; 11.42 upto 14.29 nmol/L and a lower limit of; 1.21 upto 2.25 nmol/L.

Regarding the results of this study, cortisol levels were age dependent, and although with a low correlation coefficient, there was a positive correlation between cortisol levels and weight and height. There was no correlation with BMI and no sex difference was found.