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Phone and e-mail counselling are effective for weight management in an overweight working population: a randomized controlled trial.

van Wier MF, Ariëns GA, Dekkers JC, Hendriksen IJ, Smid T, van Mechelen W - BMC Public Health (2009)

Bottom Line: Body weight reduced 1.5 kg (95% CI -2.2;-0.8, p < 0.001) in the phone group and 0.6 kg (95% CI -1.3; -0.01, p = 0.045) in the internet group, compared with controls.In completers analyses, weight and waist circumference in the phone group were reduced with 1.6 kg (95% CI -2.2;-1.0, p < 0.001) and 1.9 cm (95% CI -2.7;-1.0, p < 0.001) respectively, fat intake decreased with 1 fatpoint (1 to 4 grams)/day (95% CI -1.7;-0.2, p = 0.01) and physical activity increased with 866 METminutes/week (95% CI 203;1530, p = 0.01), compared with controls.The internet intervention resulted in a weight loss of 1.1 kg (95% CI -1.7;-0.5, p < 0.001) and a reduction in waist circumference of 1.2 cm (95% CI -2.1;-0.4, p = 0.01), in comparison with usual care.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Public and Occupational Health/EMGO Institute, VU University Medical Center, Amsterdam, the Netherlands. m.vanwier@vumc.nl

ABSTRACT

Background: The work setting provides an opportunity to introduce overweight (i.e., Body Mass Index >or= 25 kg/m2) adults to a weight management programme, but new approaches are needed in this setting. The main purpose of this study was to investigate the effectiveness of lifestyle counselling by phone or e-mail on body weight, in an overweight working population. Secondary purposes were to establish effects on waist circumference and lifestyle behaviours, and to assess which communication method is the most effective.

Methods: A randomized controlled trial with three treatments: intervention materials with phone counselling (phone group); a web-based intervention with e-mail counselling (internet group); and usual care, i.e. lifestyle brochures (control group). The interventions used lifestyle modification and lasted a maximum of six months. Subjects were 1386 employees, recruited from seven companies (67% male; mean age 43 (SD 8.6) y; mean BMI 29.6 (SD 3.5) kg/m2). Body weight was measured by research personnel and by questionnaire. Secondary outcomes fat, fruit and vegetable intake, physical activity and waist circumference were assessed by questionnaire. Measurements were done at baseline and after six months. Missing body weight was multiply imputed.

Results: Body weight reduced 1.5 kg (95% CI -2.2;-0.8, p < 0.001) in the phone group and 0.6 kg (95% CI -1.3; -0.01, p = 0.045) in the internet group, compared with controls. In completers analyses, weight and waist circumference in the phone group were reduced with 1.6 kg (95% CI -2.2;-1.0, p < 0.001) and 1.9 cm (95% CI -2.7;-1.0, p < 0.001) respectively, fat intake decreased with 1 fatpoint (1 to 4 grams)/day (95% CI -1.7;-0.2, p = 0.01) and physical activity increased with 866 METminutes/week (95% CI 203;1530, p = 0.01), compared with controls. The internet intervention resulted in a weight loss of 1.1 kg (95% CI -1.7;-0.5, p < 0.001) and a reduction in waist circumference of 1.2 cm (95% CI -2.1;-0.4, p = 0.01), in comparison with usual care. The phone group appeared to have more and larger changes than the internet group, but comparisons revealed no significant differences.

Conclusion: Lifestyle counselling by phone and e-mail is effective for weight management in overweight employees and shows potential for use in the work setting.

Trial registration: ISCRTN04265725.

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Related in: MedlinePlus

Participation in the intervention. The columns represent the proportions of participants in the phone and internet groups that did not receive any counselling (0) or that were counselled on 1–3, 4–6, 7–9 or 10 modules.
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Figure 2: Participation in the intervention. The columns represent the proportions of participants in the phone and internet groups that did not receive any counselling (0) or that were counselled on 1–3, 4–6, 7–9 or 10 modules.

Mentions: Erroneously 11 participants in the phone group and 8 participants in the internet group were never contacted by their counsellor. Of the participants in the phone group, 81 did not return the initiating calls from the counselling team, and 370/462 (80%) had at least one counselling session. The web-based programme was initiated by 400/464 (86%) employees and 344/464 (74%) employees were counselled on at least the first module. Figure 2 shows the attendance to the counselling sessions in each intervention group. The median number of counselled sessions for participants with complete body weight data was 9 (IQR = 2 to 10) modules in the phone group and 5 (IQR = 1 to 10) modules in the internet group. For participants with incomplete data this was 1 (IQR = 0 to 2) modules in the phone group and 0 (IQR = 0 to 2) modules in the internet group.


Phone and e-mail counselling are effective for weight management in an overweight working population: a randomized controlled trial.

van Wier MF, Ariëns GA, Dekkers JC, Hendriksen IJ, Smid T, van Mechelen W - BMC Public Health (2009)

Participation in the intervention. The columns represent the proportions of participants in the phone and internet groups that did not receive any counselling (0) or that were counselled on 1–3, 4–6, 7–9 or 10 modules.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2667416&req=5

Figure 2: Participation in the intervention. The columns represent the proportions of participants in the phone and internet groups that did not receive any counselling (0) or that were counselled on 1–3, 4–6, 7–9 or 10 modules.
Mentions: Erroneously 11 participants in the phone group and 8 participants in the internet group were never contacted by their counsellor. Of the participants in the phone group, 81 did not return the initiating calls from the counselling team, and 370/462 (80%) had at least one counselling session. The web-based programme was initiated by 400/464 (86%) employees and 344/464 (74%) employees were counselled on at least the first module. Figure 2 shows the attendance to the counselling sessions in each intervention group. The median number of counselled sessions for participants with complete body weight data was 9 (IQR = 2 to 10) modules in the phone group and 5 (IQR = 1 to 10) modules in the internet group. For participants with incomplete data this was 1 (IQR = 0 to 2) modules in the phone group and 0 (IQR = 0 to 2) modules in the internet group.

Bottom Line: Body weight reduced 1.5 kg (95% CI -2.2;-0.8, p < 0.001) in the phone group and 0.6 kg (95% CI -1.3; -0.01, p = 0.045) in the internet group, compared with controls.In completers analyses, weight and waist circumference in the phone group were reduced with 1.6 kg (95% CI -2.2;-1.0, p < 0.001) and 1.9 cm (95% CI -2.7;-1.0, p < 0.001) respectively, fat intake decreased with 1 fatpoint (1 to 4 grams)/day (95% CI -1.7;-0.2, p = 0.01) and physical activity increased with 866 METminutes/week (95% CI 203;1530, p = 0.01), compared with controls.The internet intervention resulted in a weight loss of 1.1 kg (95% CI -1.7;-0.5, p < 0.001) and a reduction in waist circumference of 1.2 cm (95% CI -2.1;-0.4, p = 0.01), in comparison with usual care.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Public and Occupational Health/EMGO Institute, VU University Medical Center, Amsterdam, the Netherlands. m.vanwier@vumc.nl

ABSTRACT

Background: The work setting provides an opportunity to introduce overweight (i.e., Body Mass Index >or= 25 kg/m2) adults to a weight management programme, but new approaches are needed in this setting. The main purpose of this study was to investigate the effectiveness of lifestyle counselling by phone or e-mail on body weight, in an overweight working population. Secondary purposes were to establish effects on waist circumference and lifestyle behaviours, and to assess which communication method is the most effective.

Methods: A randomized controlled trial with three treatments: intervention materials with phone counselling (phone group); a web-based intervention with e-mail counselling (internet group); and usual care, i.e. lifestyle brochures (control group). The interventions used lifestyle modification and lasted a maximum of six months. Subjects were 1386 employees, recruited from seven companies (67% male; mean age 43 (SD 8.6) y; mean BMI 29.6 (SD 3.5) kg/m2). Body weight was measured by research personnel and by questionnaire. Secondary outcomes fat, fruit and vegetable intake, physical activity and waist circumference were assessed by questionnaire. Measurements were done at baseline and after six months. Missing body weight was multiply imputed.

Results: Body weight reduced 1.5 kg (95% CI -2.2;-0.8, p < 0.001) in the phone group and 0.6 kg (95% CI -1.3; -0.01, p = 0.045) in the internet group, compared with controls. In completers analyses, weight and waist circumference in the phone group were reduced with 1.6 kg (95% CI -2.2;-1.0, p < 0.001) and 1.9 cm (95% CI -2.7;-1.0, p < 0.001) respectively, fat intake decreased with 1 fatpoint (1 to 4 grams)/day (95% CI -1.7;-0.2, p = 0.01) and physical activity increased with 866 METminutes/week (95% CI 203;1530, p = 0.01), compared with controls. The internet intervention resulted in a weight loss of 1.1 kg (95% CI -1.7;-0.5, p < 0.001) and a reduction in waist circumference of 1.2 cm (95% CI -2.1;-0.4, p = 0.01), in comparison with usual care. The phone group appeared to have more and larger changes than the internet group, but comparisons revealed no significant differences.

Conclusion: Lifestyle counselling by phone and e-mail is effective for weight management in overweight employees and shows potential for use in the work setting.

Trial registration: ISCRTN04265725.

Show MeSH
Related in: MedlinePlus