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Stress
The International Journal on the Biology of Stress
Volume 17, 2014 - Issue 4
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Research Article

Associations of hair cortisol concentration with self-reported measures of stress and mental health-related factors in a pooled database of diverse community samples

Samantha WellsSocial and Epidemiological Research Department, Centre for Addiction and Mental Health London, OntarioCanada;Department of Epidemiology and Biostatistics, Western University London, OntarioCanada;Dalla Lana School of Public Health, University of Toronto Toronto, OntarioCanadaCorrespondence[email protected]
,
Paul F. TremblayDepartment of Psychology, Western University London, OntarioCanada
,
Andrea FlynnProvincial System Support Program, Centre for Addiction and Mental Health London, OntarioCanada
,
Evan RussellDepartment of Physiology and Pharmacology, Western University London, OntarioCanada
,
James KennedyNeuroscience Research Department and Psychiatric Neurogenetics Section, Centre for Addiction and Mental Health Toronto, OntarioCanada;Department of Psychiatry and Institute of Medical Science, University of Toronto Toronto, OntarioCanada
,
Jürgen RehmDalla Lana School of Public Health, University of Toronto Toronto, OntarioCanada;Social and Epidemiological Research Department, Centre for Addiction and Mental Health Toronto, OntarioCanada
,
Stan Van UumDepartment of Medicine, Schulich School of Medicine and Dentistry, Western University London, OntarioCanada
,
Gideon KorenDepartment of Physiology and Pharmacology, Western University London, OntarioCanada;Department of Medicine, Schulich School of Medicine and Dentistry, Western University London, OntarioCanada;Ivey Chair in Molecular Toxicology, Western University London, OntarioCanada;Department of Pediatrics, Division of Clinical Pharmacology/Toxicology, Hospital for Sick Children Toronto, OntarioCanada
&
Kathryn GrahamSocial and Epidemiological Research Department, Centre for Addiction and Mental Health London, OntarioCanada;Dalla Lana School of Public Health, University of Toronto Toronto, OntarioCanada;Department of Psychology, Western University London, OntarioCanada;National Drug Research Institute, Curtin University Perth, WesternAustralia
 show all
Pages 334-342 | Received 15 Jan 2014, Accepted 29 May 2014, Published online: 25 Jun 2014

Figures & data

Table 1. Sample characteristics by sub-study.

Table 2. Associations between HCC and indices of stress, mental health, substance use/problems, disability and aggression.

Table 3. Test of quadratic associations of Perceived Stress Scale and Chronic Stress with HCC (transformed).

Figure 1. Mean HCC across categories of the Perceived Stress Scale. The Perceived Stress Scale was categorized as follows: 0–8, 9–16, 17–24, 25–32 and 33–40. Significant overall mean differences among the levels of stress (F(4,288) = 2.96, p < 0.01) were found, with means and standard deviations (SD) for each category of stress as follows: 0–8, mean = 5.16, SD = 0.59; 9–16, mean = 5.35, SD = 0.52; 17–24, mean = 5.50, SD = 0.60; 25–32, mean = 5.47, SD = 0.63; and 33–40, mean = 5.24, SD = 0.49.

Figure 1. Mean HCC across categories of the Perceived Stress Scale. The Perceived Stress Scale was categorized as follows: 0–8, 9–16, 17–24, 25–32 and 33–40. Significant overall mean differences among the levels of stress (F(4,288) = 2.96, p < 0.01) were found, with means and standard deviations (SD) for each category of stress as follows: 0–8, mean = 5.16, SD = 0.59; 9–16, mean = 5.35, SD = 0.52; 17–24, mean = 5.50, SD = 0.60; 25–32, mean = 5.47, SD = 0.63; and 33–40, mean = 5.24, SD = 0.49.

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