Abstract:
OBJECTIVE:Mobile phones can replace traditional self-monitoring tools through cell phone-based ecological momentary assessment (CEMA) of lifestyle behaviours and camera phone-based images of meals, i.e. photographic food records (PFR). Adherence to mobile self-monitoring needs to be evaluated in real-world treatment settings. Towards this goal, we examine CEMA and PFR adherence to the use of a mobile app designed to help mothers self-monitor lifestyle behaviours and stress. Design/Setting In 2012, forty-two mothers recorded CEMA of diet quality, exercise, sleep, stress and mood four times daily and PFR during meals over 6 months in Los Angeles, California, USA. SUBJECTS:A purposive sample of mothers from mixed ethnicities. RESULTS:Adherence to recording CEMA at least once daily was higher compared with recording PFR at least once daily over the study period (74 v. 11 %); adherence to both types of reports decreased over time. Participants who recorded PFR for more than a day (n 31) were more likely to be obese v. normal- to overweight and to have higher blood pressure, on average (all P<0·05). Based on random-effects regression, CEMA and PFR adherence was highest during weekdays (both P<0·01). Additionally, PFR adherence was associated with older age (P=0·04). CEMA adherence was highest in the morning (P<0·01). PFR recordings occurred throughout the day. CONCLUSIONS:Variations in population and temporal characteristics should be considered for mobile assessment schedules. Neither CEMA nor PFR alone is ideal over extended periods.
journal_name
Public Health Nutrjournal_title
Public health nutritionauthors
Comulada WS,Swendeman D,Koussa MK,Mindry D,Medich M,Estrin D,Mercer N,Ramanathan Ndoi
10.1017/S1368980017003044subject
Has Abstractpub_date
2018-03-01 00:00:00pages
679-688issue
4eissn
1368-9800issn
1475-2727pii
S1368980017003044journal_volume
21pub_type
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