NCT04562675

Brief Summary

The aim of this study was to evaluate the long-term effectiveness of a lay health advisor (LHA) intervention on immigrant children's caries and preventive behaviors.This randomized controlled trial included mother-child pairs in the intervention group (IG) and a brochure-only control group (CG), respectively. The IG received a four-week one-on-one session by an LHA on caries-related knowledge and brushing techniques. Baseline and follow-up surveys were used to collect the data in caries experience and maternal caries preventive behavior.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
55

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2012

Longer than P75 for not_applicable

Status
completed

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 Start

First participant enrolled

August 27, 2012

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2015

Completed
4.9 years until next milestone

First Submitted

Initial submission to the registry

September 14, 2020

Completed
10 days until next milestone

First Posted

Study publicly available on registry

September 24, 2020

Completed
Last Updated

September 24, 2020

Status Verified

September 1, 2020

Enrollment Period

3.2 years

First QC Date

September 14, 2020

Last Update Submit

September 23, 2020

Conditions

Keywords

CariesimmigrantLay health advisorpreventive behaviororal hygiene

Outcome Measures

Primary Outcomes (3)

  • dmft index

    The caries status of each tooth was recorded using the dmft index, as follows: decayed (d), missing (m), or filled (f) tooth (t). For each child, caries experience was measured using the dmft index of primary teeth.

    Change from Baseline dmft at 1 weeks after intervention

  • dmft index

    The caries status of each tooth was recorded using the dmft index, as follows: decayed (d), missing (m), or filled (f) tooth (t). For each child, caries experience was measured using the dmft index of primary teeth.

    Change from Baseline dmft at 2 months after intervention

  • dmft index

    The caries status of each tooth was recorded using the dmft index, as follows: decayed (d), missing (m), or filled (f) tooth (t). For each child, caries experience was measured using the dmft index of primary teeth.

    Change from Baseline dmft at 8 months after intervention

Secondary Outcomes (8)

  • Maternal preventive behavior

    Change from Baseline at 1 weeks after intervention

  • Maternal preventive behavior

    Change from Baseline at 8 months after intervention

  • Maternal caries-related knowledge

    Change from Baseline at 1 weeks after intervention

  • Maternal caries-related knowledge

    Change from Baseline at 8 months after intervention

  • Maternal attitude toward oral hygiene

    Change from Baseline at 1 weeks after intervention

  • +3 more secondary outcomes

Study Arms (2)

Intervention group (IG)

EXPERIMENTAL

LHA intervention group (IG)

Behavioral: LHA intervention

Control group (CG)

PLACEBO COMPARATOR

brochure-only control group (CG)

Other: brochure-only

Interventions

For the IG, a 4-hour lesson consisting of 4 chapters and leaflets was delivered over 4 weeks, with one chapter per hour per week. Each LHA visited the assigned mother in the IG four times in a 4-week period.

Intervention group (IG)

brochure-only for control group (CG)

Control group (CG)

Eligibility Criteria

Age22 Years - 48 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Vietnamese women whose children aged 2-6 years

You may not qualify if:

  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Dental Caries

Condition Hierarchy (Ancestors)

Tooth DemineralizationTooth DiseasesStomatognathic Diseases

Study Officials

  • Hsiao-Ling Huang

    Kaohsiung Medical University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 14, 2020

First Posted

September 24, 2020

Study Start

August 27, 2012

Primary Completion

October 31, 2015

Study Completion

October 31, 2015

Last Updated

September 24, 2020

Record last verified: 2020-09

Data Sharing

IPD Sharing
Will not share