Evidence map›Paper›PMID 34195468›Full record

ArticleContemporary clinical trials communications2021

Design and strategies used for recruitment and retention in a double blind randomized controlled trial investigating the effects of soluble corn fiber on bone indices in pre-adolescent children (PREBONE-Kids study) in Malaysia.

Kanimolli Arasu, Chung Yuan Chang, Soon Yee Wong, Shu Hwa Ong, Wai Yew Yang, Megan Hueh Zan Chong, Meenal Mavinkurve, Erwin Jiayuan Khoo, Karuthan Chinna, Connie M Weaver and 1 more

Open access · goldAbstract read
In one paragraph

Article in Contemporary clinical trials communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 10 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Kanimolli ArasuDepartment of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia.
Chung Yuan ChangDepartment of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia.
Soon Yee WongDepartment of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia.
Shu Hwa OngDepartment of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia.
Wai Yew YangDepartment of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia.
Megan Hueh Zan ChongDepartment of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia.
Meenal MavinkurveDepartment of Paediatrics, School of Medicine, International Medical University, Jalan Rasah, 70300, Seremban, Negeri Sembilan, Malaysia.
Erwin Jiayuan KhooDepartment of Paediatrics, School of Medicine, International Medical University, Jalan Rasah, 70300, Seremban, Negeri Sembilan, Malaysia.
Karuthan ChinnaFaculty of Health & Medical Sciences, School of Medicine, Taylor's University, No 1, Jalan Taylor's, 47500, Subang Jaya, Selangor, Malaysia.
Connie M WeaverDistinguished Professor Emerita, Purdue University, USA.
Winnie Siew Swee CheeDepartment of Nutrition & Dietetics, School of Health Sciences, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia.
IMU University · MYTaylor's University · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecruitment and retention in longitudinal nutrition intervention studies among children is challenging and scarcely reported. This paper describes the strategies and lessons learned from a 1-year randomized double-blind placebo-controlled trial among pre-adolescent children on the effects of soluble corn fiber (SCF) on bone indices (PREBONE-Kids).

methodsParticipants (9-11 years old) were recruited and randomized into 4 treatment groups (600 mg calcium, 12 g SCF, 12 g SCF plus 600 mg calcium and placebo). Interventions were consumed as a fruit-flavored powdered drink for 1-year. School-based recruitment was effective due to support on study benefits from parents and teachers, peer influence and a 2-weeks study run-in for participants to assess their readiness to commit to the study protocol. Retention strategies focused on building rapport through school-based fun activities, WhatsApp messaging, providing health screening and travel reimbursements for study measurements. Compliance was enhanced by providing direct on-site school feeding and monthly non-cash rewards. Choice of 2 flavors for the intervention drinks were provided to overcome taste fatigue. Satisfaction level on the manner in which the study was conducted was obtained from a voluntary sub-set of participants.

resultsThe study successfully enrolled 243 participants within 6 months and retained 82.7% of the participants at the end of 1 year, yielding a drop-out rate of 17.3%. Compliance to the intervention drink was 85% at the start and remained at 78.7% at the end of 1 year. More than 95% of the participants provided good feedback on intervention drinks, rapport building activities, communication and overall study conduct.

conclusionSuccessful strategies focused on study benefits, rapport building, frequent communication using social media and non-cash incentives helped improved compliance and retention rate. The lessons learned to maintain a high retention and compliance rate in this study provide valuable insights for future studies in a similar population.

Indexed as

25-OHD, serum 25-hydroxyvitamin DBAP, bone-specific alkaline phosphataseBMC, bone mineral contentBMD, bone mineral densityCalciumComplianceCTX, carboxy-terminal collagen crosslinksDXA, dual-energy X-ray absorptiometryiPTH, intact parathyroid hormoneMET, total metabolic equivalentOC, osteocalcinP1NP, procollagen type 1 amino-terminal propeptidePBM, peak bone massPre-adolescent childrenSCF, soluble corn fibreSoluble corn fiberStudy retention

Identifiers

PMID34195468
PMCPMC8233130
OpenAlexW3165948852

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.