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Completed

NCT Number: NCT04196426

Nutrition Education to Promote Calcium Intake Among 30-65 Year-old Women in Vietnam

Osteoporosis is an important public health problem in Vietnam, with one in ten Vietnamese women suffering from it. There is enough evidence demonstrating that low calcium intake is one of the risk factors for osteoporosis among Asian women in general and Vietnamese women in specific. It is reported that the intake of calcium among Vietnamese women is under 400 mg/day, which is less than the daily recommendation of 1,000 mg/day by the Vietnam National Institute of Nutrition, even though calcium-rich foods are largely available in Vietnam. Therefore, the purpose of this study is to promote dietary calcium intake among Vietnamese women aged 30-65 years through implementing a nutrition education intervention.

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Key information

Conditions

Osteoporosis Bone Diseases Bone Diseases, Metabolic Metabolic Diseases Musculoskeletal Diseases Nutritional and Metabolic Diseases

Age range

30 year–65 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Preventive Medical Centers

Thach That, Hanoi, Vietnam

About this study

Vietnamese women aged 30-65 years without medical problems that could interfere with the calcium consumption, such as kidney stone, kidney and liver diseases. The women will be excluded if they are blinded, deaf, or have general learning disability.

Outcomes of the study are dietary calcium intake, calcium knowledge, and osteoporosis health belief. A quantitative questionnaire is being used to collect these data.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • women aged 30 to 65 years

Exclusion criteria

  • have medical conditions that can interfere with calcium intake, such as physician-diagnosed kidney stone, kidney and liver diseases, etc.
  • blind, deaf, and have general learning disability

Treatment and study plan

Nutrition education intervention about osteoporosis and calcium

Behavioral

The intervention is designed and developed based on the Intervention Mapping Process and the Health Belief Model. Topics of the intervention include: the importance of osteoporosis and risk factors, role of calcium in bone health and controlling the disease, calcium recommendations and sources, role of vitamin D and physical activity in calcium absorption and bone health, and how to identify calcium-rich foods in the locality and prepare meals with local calcium-rich foods. A recipe booklet containing recipes using local calcium-rich foods will be given to the participants after the end of the two nutrition lessons. Interactive activities are incorporated in each lesson to encourage the participation of participants.

Primary outcomes

  1. Dietary calcium intake

    Time frame: 5 weeks

    The dietary calcium intake (mg/day) will be assessed using a food frequency questionnaire, which consisted of 36 food items contributing to the total calcium intake. The total calcium intake of each participant will be the sum of calcium intake from all food items in the food frequency questionnaire.

Secondary outcomes

  1. Nutrition knowledge related to osteoporosis and calcium

    Time frame: 5 weeks

    The nutrition knowledge related to osteoporosis and calcium will be collected using a questionnaire that participants can answer by pencil. The knowledge included 11 question items. Participants received 1 point if answering correctly and 0 point if answering incorrectly. Total knowledge score ranged from 0 (minimum) to 11 points (maximum).

  2. Osteoporosis health beliefs

    Time frame: 5 weeks

    Osteoporosis health beliefs will be collected using an osteoporosis health belief likert scale. The scale consisted of 6 subscales, including perceived susceptibility, perceived severity, perceived benefits, perceived barriers, health motivation, and self-efficacy. Each sub-scale of the health beliefs scale has 6 statements with 5 answering options, from "strongly disagree" (coded as 1) to "strongly agree" (coded as 5). Possible scores for each sub scale ranged from 6-30, with higher score indicating higher perception.

Sponsors and collaborators

Lead sponsor

Texas Tech University

Other

Collaborators

  • Hanoi University of Pharmacy
  • National Institute of Nutrition, Vietnam

Registry information

Official study title

Nutrition Education Intervention to Promote Dietary Calcium Intake Among Vietnamese Women Aged 30-65 Years in Rural Areas in Hanoi, Vietnam

Important dates

Study start
2019
Primary completion
2019
Study completion
2019
First posted
Dec 12, 2019
Registry last updated
Dec 13, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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