NCT07511465

Brief Summary

This observational study aims to examine developmental status, sensory processing, and sleep quality in preschool children aged 3 to 6 years across different caregiving models. Children raised primarily by first-degree relatives, second-degree relatives, caregivers, or in daycare settings will be compared. Data will be collected using the Denver II Developmental Screening Test, the Dunn Sensory Profile, and the Tayside Children's Sleep Questionnaire. The study will also evaluate the relationships among developmental status, sensory processing, and sleep quality, and explore whether caregiving model is associated with differences in these outcomes.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
135

participants targeted

Target at P50-P75 for all trials

Timeline
1mo left

Started Jan 2026

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress83%
Jan 2026Jun 2026

Study Start

First participant enrolled

January 5, 2026

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

March 30, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

April 6, 2026

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2026

Last Updated

April 9, 2026

Status Verified

April 1, 2026

Enrollment Period

5 months

First QC Date

March 30, 2026

Last Update Submit

April 5, 2026

Conditions

Keywords

Preschool childrenDevelopmental statusSensory processingSleep qualityCaregiving models

Outcome Measures

Primary Outcomes (3)

  • Developmental status assessed by the Denver II Developmental Screening Test

    Developmental status of preschool children will be assessed using the Denver II Developmental Screening Test. The Denver II is a developmental screening instrument and does not yield a single total numeric score. Results will be reported using standard test interpretation categories such as normal, suspect, or untestable.

    At baseline (single assessment)

  • Sensory processing assessed by the Dunn Sensory Profile

    Sensory processing patterns of preschool children will be assessed using the Child Sensory Profile 2, a caregiver-reported standardized measure of sensory processing. Outcomes will be reported as raw scores for the relevant quadrants and/or sensory section scores, with corresponding normative classifications. Higher raw scores indicate more frequent sensory processing behaviors and do not necessarily indicate a better outcome.

    At baseline (single assessment)

  • Sleep quality assessed by the Tayside Children's Sleep Questionnaire

    Sleep quality of preschool children will be assessed using the Tayside Children's Sleep Questionnaire, a parent-reported screening instrument for disorders of initiating and maintaining sleep in young children. The total score is calculated by summing the first 9 items. Scores range from 0 to 36, with higher scores indicating more sleep problems and therefore a worse outcome. A total score of 8 or higher suggests possible sleep disturbance.

    At baseline (single assessment)

Study Arms (4)

First-Degree Relative Care

Preschool children aged 3 to 6 years whose primary caregiving model for at least the past 6 months has been provided by first-degree relatives, including mother and/or father.

Second-Degree Relative Care

Preschool children aged 3 to 6 years whose primary caregiving model for at least the past 6 months has been provided by second-degree relatives, such as grandparents, aunts, or uncles.

Paid Caregiver Care

Preschool children aged 3 to 6 years whose primary caregiving model for at least the past 6 months has been provided by a paid caregiver or nanny.

Daycare Care

Preschool children aged 3 to 6 years whose primary caregiving model for at least the past 6 months has been based primarily on daycare attendance.

Eligibility Criteria

Age3 Years - 6 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Preschool children aged 3 to 6 years living in Istanbul and raised under different caregiving models, including first-degree relatives, second-degree relatives, paid caregivers, or daycare-based care. Participants will be recruited on a voluntary basis through social media announcements, and eligible families will attend face-to-face assessment sessions at Fenerbahçe University.

You may qualify if:

  • Preschool children aged 3 to 6 years
  • Child has been raised within the same primary caregiving model for at least the past 6 months
  • Parent or legal guardian is willing to participate voluntarily and provide informed consent
  • Child and caregiver are able to understand Turkish and follow the study instructions

You may not qualify if:

  • Previously diagnosed neurological, developmental, or psychiatric disorder (e.g., autism spectrum disorder, attention-deficit/hyperactivity disorder, developmental delay)
  • Currently receiving treatment or therapy for sensory processing problems, sleep problems, or developmental difficulties
  • Parent or legal guardian provides incomplete or incorrect study forms
  • Child is unable to cooperate with or complete the assessment procedures

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Fenerbahçe University

Istanbul, Ataşehir, 34758, Turkey (Türkiye)

RECRUITING

MeSH Terms

Conditions

Sleep Initiation and Maintenance Disorders

Condition Hierarchy (Ancestors)

Sleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesMental Disorders

Study Officials

  • Sümeyye Akçay

    Fenerbahçe University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Sümeyye Akçay, Asst. Prof.

CONTACT

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Asst. Prof.

Study Record Dates

First Submitted

March 30, 2026

First Posted

April 6, 2026

Study Start

January 5, 2026

Primary Completion (Estimated)

June 1, 2026

Study Completion (Estimated)

June 1, 2026

Last Updated

April 9, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Individual participant data will not be shared with other researchers because the study involves minors and includes potentially sensitive developmental and health-related information. Data will be used only for the purposes described in the approved study protocol and will be handled in accordance with applicable ethical and confidentiality requirements.

Locations