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. 2014 Jul 27:1:10.
doi: 10.1186/2052-9538-1-10. eCollection 2014.

Feasibility, acceptability and potential effectiveness of a mobile health (mHealth) weight management programme for New Zealand adults

Cliona Ni Mhurchu  1 , Robyn Whittaker  1 , Hayden McRobbie  2 , Kylie Ball  3 , David Crawford  3 , Jo Michie  1 , Yannan Jiang  1 , Ralph Maddison  1 , Wilma Waterlander  1 , Katie Myers  2
Affiliations

Feasibility, acceptability and potential effectiveness of a mobile health (mHealth) weight management programme for New Zealand adults

Cliona Ni Mhurchu et al. BMC Obes. .

Abstract

Background: Mobile health (mHealth) behaviour change programmes use mobile phones and the internet to deliver health information and behaviour change support to participants. Such programmes offer a potentially cost-effective way to reach many individuals who do not currently access weight loss services. We developed a mHealth weight management programme using proven face-to-face behaviour change techniques and incorporating target population input. Our aim was to evaluate the feasibility, acceptability and potential effectiveness of this programme for ethnically diverse adults with a view to informing a larger trial.

Results: Fifty three adults who had a BMI of ≥25 kg/m(2) and wanted to lose weight (81% female, mean age 42 years, mean BMI 35.7 kg/m(2), 26% Maori, 34% Pacific) received the eight-week mHealth weight loss programme. Anthropometric measures were taken at two face-to-face assessments at baseline and 12-weeks (i.e. four weeks after cessation of intervention). Twelve-week follow-up measurements were available for 36/53 participants (68%). Non-completers were younger and more likely to be male and of Pacific ethnicity. Thirty five participants (66%) reported reading 'all or most' text messages sent and 96% responded to at least one text data collection question over the eight-week active intervention period. Eighty one per cent of participants logged in to the study website at least once during the eight-week study period. In the intention-to-treat analysis, mean weight change was -1.0 kg (SD 3.1) at 12 weeks (p = 0.024) and change in BMI was -0.34 kg/m(2) (SD 1.1) (p = 0.026). In the completers only analysis (n = 36), mean weight change was -1.4 kg (SD 3.6) (p = 0.023) and change in BMI was -0.50 kg/m(2) (SD 1.3) (p = 0.025).

Conclusions: A mHealth weight management programme is feasible to deliver to an ethnically diverse population. Changes in body weight and BMI at 12 weeks indicate that the programme could be effective in supporting people with weight loss. However, the high dropout rate indicates a need for further improvements to the programme.

Trial registration: ACTRN12612000850875.

Keywords: Obesity; Text message; mHealth.

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Figures

Figure 1
Figure 1
Website log-in days per participant.
See this image and copyright information in PMC

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Pre-publication history
    1. The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/2052-9538/1/10/prepub

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