How and when is it most feasible to promote weight reduction after delivery in overweight women by motivational interviewing?

IRIS: How and when is it most feasible and cost-effective to promote weight reduction after delivery in overweight women by motivational interviewing? A randomised controlled trial

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN76738493

Enrollment

270

Registered

2014-11-12

Start date

2014-11-01

Completion date

Unknown

Last updated

2016-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prevention of obesity and promotion of healthy eating and physical activity habits Pregnancy and Childbirth

Interventions

Motivational interviewing (MI) is a brief psychological counselling method characterized by an emphasis on promoting motivation for behavior change by helping a client to explore and resolve ambivalen

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1. Nulliparous or primiparous women at gestational week 8-11 2. Age 18-39 years 3. BMI 27.0-34.9 kg/m2 4. Fluent in Swedish

Exclusion criteria

Exclusion criteria: 1. Severe psychologic or somatic illness 2. Bariatric surgery patient 3. Alcohol or narcotic addiction 4. Insulin-dependent diabetes

Design outcomes

Primary

Measure	Time frame
Postpartum weight retention 12 months after delivery. Weight and height are assessed by study staff the first MI session/general visit(approximately gestational week 15) by scale and height meter, and at follow-up 52 weeks postpartum. Weight is also measured at the routine visits in antenatal care (approximately gestational weeks 10-12, 25 and 37/38) and at delivery and data are assessed from medical records.	—

Measure

Time frame

Postpartum weight retention 12 months after delivery. Weight and height are assessed by study staff the first MI session/general visit(approximately gestational week 15) by scale and height meter, and at follow-up 52 weeks postpartum. Weight is also measured at the routine visits in antenatal care (approximately gestational weeks 10-12, 25 and 37/38) and at delivery and data are assessed from medical records.

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Secondary

Measure	Time frame
1. Dietary and physical activity habits. Diet is assessed at baseline (gestational week 11-13) and follow-up (1 year after delivery) by four-days food records using a web-based method. Physical activity is measured during seven consecutive days using an accelerometer at baseline, at the end of the second trimester, 5-6 months postpartum, and at follow-up (12 months after delivery). 2. Self-efficacy - measured by a questionnaire (an instrument developed by Kendall et al and back translated to Swedish) at baseline, at the end of the second trimester, 5-6 months postpartum, and at follow-up (12 months after delivery). 3. Blood pressure is registered in routine antenatal care (approximately gestational weeks 10-12) and data are drawn from medical records as well as at follow-up (12 months postpartum). Blood pressure will measured in a sitting position in the right arm after 5 minutes rest according to the antenatal care´s guidelines. 4. Body composition is assessed by bioelectric impedance at follow-up (12 months after delivery). 5. Gestational weight gain 6. Quality of life will be assessed for the health economic evaluation by a questionnaire (the SF-36 instrument) at baseline and follow-up (12 months after delivery).	—

Measure

Time frame

1. Dietary and physical activity habits. Diet is assessed at baseline (gestational week 11-13) and follow-up (1 year after delivery) by four-days food records using a web-based method. Physical activity is measured during seven consecutive days using an accelerometer at baseline, at the end of the second trimester, 5-6 months postpartum, and at follow-up (12 months after delivery). 2. Self-efficacy - measured by a questionnaire (an instrument developed by Kendall et al and back translated to Swedish) at baseline, at the end of the second trimester, 5-6 months postpartum, and at follow-up (12 months after delivery). 3. Blood pressure is registered in routine antenatal care (approximately gestational weeks 10-12) and data are drawn from medical records as well as at follow-up (12 months postpartum). Blood pressure will measured in a sitting position in the right arm after 5 minutes rest according to the antenatal care´s guidelines. 4. Body composition is assessed by bioelectric impedance at follow-up (12 months after delivery). 5. Gestational weight gain 6. Quality of life will be assessed for the health economic evaluation by a questionnaire (the SF-36 instrument) at baseline and follow-up (12 months after delivery).

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Countries

Sweden

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026