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Table 2 Characteristics of the distribution of the raw and numerically transformed salivary cortisol levels in healthy young male adults

From: Distribution characteristics of salivary cortisol measurements in a healthy young male population

 

COR-raw (nmol/l)

COR-log ln (nmol/l)

COR-sqrt (nmol/l)

Mean

20.39

2.92

4.41

Median

19.31

2.94

4.37

SD

7.74

0.41

0.86

CV

38 %

14 %

20 %

95 % CI

7.59–39.59

1.99–3.67

2.72–6.28

Skewness

0.73

−0.63

0.12

Kurtosis

0.68

1.14

0.20

  1. The skewness and kurtosis of a normal distribution are both zero
  2. SD standard deviation, CV coefficient of variation (SD/mean), CI confidence interval, skewness parameter of symmetry, kurtosis parameter of peaked (positive) or flat (negative) distribution
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Journal of Physiological Anthropology

ISSN: 1880-6805

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