Table 3 Fixed effects of the quality of current living conditions on hair cortisol concentration from linear mixed models.

From: War exposure, post-traumatic stress symptoms and hair cortisol concentrations in Syrian refugee children

Model

Fixed effect

B

SE

p value

% Change cortisol

Batch only

Quality of current living conditions

−0.005

0.016

0.743

−1.2

Full model

Quality of current living conditions

0.017

0.016

0.284

3.9

Time: 12–24 months ago

−0.063

0.028

0.024

−13.5

Time: 24–36 months ago

<0.001

0.030

1.000

0.0

Time: 36–48 months ago

−0.066

0.027

0.014

−14.0

Time: 48+ months ago

−0.085

0.030

0.005

−17.8

Sex

0.239

0.018

<0.001

73.3

Age

0.054

0.004

<0.001

13.2

Pubertal stage

0.081

0.025

0.001

20.5

Smoking

−0.141

0.065

0.030

−27.7

Hair colour: brown

−0.038

0.017

0.026

−8.4

Hair colour: other

−0.078

0.047

0.094

−16.4

  1. Linear mixed model specification: log10cortisol ~ PREI + batch + (1|participant) + additional covariates. Covariates in minimal model: age, sex, pubertal stage, smoking, hair colour. Fixed effects for analysis batch not shown due to the number of levels [46]. Reference groups: Sex (male), pubertal stage (early-mid puberty), hair colour (black). % change in cortisol calculated from regression B values. PREI range = 0–4.89.
Back to article page