Hair Cortisol as Marker of Chronic Stress in Preterm and Term Fathers - Fathair-study

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age1-7
SponsorUniversity of Cologne

About this trial

The goal of this observational study is to compare the paternal hair cortisol as a marker for chronic stress in prematurely born children to maturely born children.

The main questions it aims to answer are:

* How differ the cortisol level between groups? * How change the cortisol level over time? * Are there secondary outcomes associated to the cortisol level of fathers? Participants will give a hair sample to analyse the cortisol level and fill out questionnaires at three time points. At six months of the infant's age, the investigators will also measure the paternal sensitivity.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Premature or mature infant (22 0/7 to 42 0/7 weeks of gestation)

For mature infants (37 0/7 to 42 0/7 weeks of gestation) undisturbed neonatal period

No severe malformations or genetic diseases of the newborn child

Sufficient knowledge of German of the father

Disqualifiers

adoptive or foster paternity

hair length below 3 cm at the posterior vertex region of the back of the father's head

endocrine disorders, especially of the adrenocortical system (e.g. Cushing syndrome, adrenal insufficiency)

taking steroidal medications or other drugs that affect the activity of the hypothalamic-pituitary-adrenocortical system

Trial population

Fathers of newborns born at the university hospital of Cologne

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • measurement of cortisol level

    Diagnostic test

    We will measure the cortisol level from the hair sample of the father at three time points. Furthermore the father will answer questionnaires at three time points and the paternal sensitivity is measured once.

Treatment groups

120 Participants
are divided into 3 treatment groups
Group A: fathers of mature infants1 intervention
Group B: fathers of moderate and late preterm infants1 intervention
Group C: fathers of very low birth weight preterm infants1 intervention

Trial outcomes

Primary outcomes

1

hair cortisol level

The level of cortisol will be measured in the hair of the fathers by liquid chromatography with tandem mass spectrometry. This test is validated in human hair and the current gold standard method in hair steroid analysis. The analytic procedure follows a published laboratory protocol that has excellent sensitivity, specificity and reliability.

Time frame
first week after birth, 3 and 6 months after birth

Secondary outcomes

1

Cortisone, testosterone, progesterone, dehydroepiandrosterone level in the paternal hair

The level of these hormones (cortisone, testosterone, progesterone, dehydroepiandrosterone) will be measured in the hair of the fathers by liquid chromatography with tandem mass spectrometry. This test is validated in human hair and the current gold standard method in hair hormone analysis. The analytic procedure follows a published laboratory protocol that has excellent sensitivity, specificity and reliability.

Time frame
first week after birth, 3 and 6 months after birth
2

paternal sensitivity

The paternal sensitivity and the father-child-interaction will be measured during a five-minute-videotape of the father changing the infants' diapers and playing with the infant. The paternal sensitivity will be measured by a 9-point scale. The score can range from 1 to 9, where 1 means lack of sensitivity and 9 means very sensitive. The classification is a validated tool and is done by two trained and reliable evaluators from the Department of Developmental Science and Special Education. The evaluators are blinded.

Time frame
6 months after birth
3

father-child-interaction

The father-infant-interaction is investigated during the same video as the paternal sensitivity using Mannheim Rating Scales by a blinded psychologist. Mannheim Rating Scale is a good validated standardized observation instrument. Stimulation and response from the father as well from the infant are being recorded. Different communication channels can be used by father and child (vocal, facial or motor). All behaviors are analyzed at intervals of five seconds (event coding). The values are formed from the sum of the coded events. The scale ranges from 0 to 60. If there is no interaction, the scale is 0. If there is an interaction in each interval (every 5 seconds in a 5 minute videotape), the scale is 60. The father-child interaction is better if the scale is higher.

Time frame
six months of age
4

paternal depression

Paternal depression is assessed with the Edinburgh Postnatal Depression Scale (EPDS). It is a self-report questionnaire to measure depressive symptoms especially after birth and it consists of 10 questions. For each question the response choice are assigned point values (how often a symptom occurred during the last week). The point values are summed to a total measure score. The score ranges from 0 to 30. Zero points represents no symptoms of depression, a score of 13 or higher is interpreted to indicate a risk of depression.

Time frame
first week, 3 and 6 months after birth

Other outcomes

Sponsors and contacts

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University of Cologne

Lead sponsor

University of Siegen

Collaborator