Evidence map›Paper›PMID 41585845›Full record

ArticleBelitung nursing journal2026

Effect of the Capability-Opportunity-Motivation Behavior (COM-B) model of dietary behavior program on gestational weight gain in Thailand: A randomized controlled trial.

Pantipa Buakhai, Piyanut Xuto, Pimpaporn Klunklin, Petsunee Thungjaroenkul

Abstract read
In one paragraph

Article in Belitung nursing journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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

4 authors.

Pantipa BuakhaiFaculty of Nursing, Chiang Mai University, Chiang Mai, Thailand.ORCID https://orcid.org/0000-0002-2845-7331
Piyanut XutoObstetrics and Gynaecology Nursing Department, Faculty of Nursing, Chiang Mai University, Chiang Mai, Thailand.ORCID https://orcid.org/0000-0003-1338-0789
Pimpaporn KlunklinPediatric Nursing Department, Faculty of Nursing, Chiang Mai University, Chiang Mai, Thailand.ORCID https://orcid.org/0000-0002-2023-6200
Petsunee ThungjaroenkulNursing Administration Department, Faculty of Nursing, Chiang Mai University, Chiang Mai, Thailand.ORCID https://orcid.org/0000-0003-1293-9691

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Excessive gestational weight gain can adversely affect maternal and fetal health. Dietary behavior change can help control gestational weight gain and prevent adverse pregnancy outcomes. Objective: This study aimed to examine the effect of the Capability-Opportunity-Motivation Behavior (COM-B) model of dietary behavior program on gestational weight gain. Methods: This single-blind randomized controlled trial used a pre-posttest control group design and included 96 pregnant women from a northern province of Thailand. Participants were randomly assigned equally to the experimental and control groups (48 each) using permuted block randomization. The experimental group received a 14-session COM-B model of dietary behavior program, while the control group received usual care. Data were collected via questionnaires between November 2023 and October 2024, and were analyzed using SPSS version 26, employing descriptive and inferential statistical methods. Results: At 36 weeks' gestation, pregnant women in the experimental group had a significantly lower mean difference in gestational weight gain based on the Institute of Medicine (IOM) recommendation compared with both their baseline at 20 weeks and the control group. After adjusting for maternal age and education, the experimental group continued to show significantly lower gestational weight gain than the control group. The adjusted intention-to-treat analysis indicated a mean difference of -2.227 kg (95% CI: -3.75 to -0.70; Conclusion: The COM-B model of dietary behavior program led to minimal but potentially clinically relevant reductions in gestational weight gain. The findings highlight the clinical relevance of nurse-led interventions, underscoring the need for nurse training to implement the program in routine antenatal care. Trial Registry Number: Thai Clinical Trials Registry (TCTR20230907001).

Indexed as

COM-B modeldietary behaviorgestational weight gainpregnant womenThailand

Identifiers

PMID41585845
PMCPMC12828563

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LicenceCC BY-NC
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Registered trials

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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.