TY - JOUR
T1 - The use of crowdsourcing for dietary self-monitoring
T2 - Crowdsourced ratings of food pictures are comparable to ratings by trained observers
AU - Turner-McGrievy, Gabrielle M.
AU - Helander, Elina E.
AU - Kaipainen, Kirsikka
AU - Perez-Macias, Jose Maria
AU - Korhonen, Ilkka
PY - 2014
Y1 - 2014
N2 - Objective Crowdsourcing dietary ratings for food
photographs, which uses the input of several users to
provide feedback, has potential to assist with dietary
self-monitoring. Materials and methods This study
assessed how closely crowdsourced ratings of foods and
beverages contained in 450 pictures from the Eatery
mobile app as rated by peer users (fellow Eatery app
users) (n=5006 peers, mean 18.4 peer ratings/photo) using
a simple 'healthiness' scale were related to the ratings
of the same pictures by trained observers (raters). In
addition, the foods and beverages present in each picture
were categorized and the impact on the peer rating scale
by food/beverage category was examined. Raters were
trained to provide a 'healthiness' score using criteria
from the 2010 US Dietary Guidelines. Results The average
of all three raters' scores was highly correlated with
the peer healthiness score for all photos (r=0.88,
p
AB - Objective Crowdsourcing dietary ratings for food
photographs, which uses the input of several users to
provide feedback, has potential to assist with dietary
self-monitoring. Materials and methods This study
assessed how closely crowdsourced ratings of foods and
beverages contained in 450 pictures from the Eatery
mobile app as rated by peer users (fellow Eatery app
users) (n=5006 peers, mean 18.4 peer ratings/photo) using
a simple 'healthiness' scale were related to the ratings
of the same pictures by trained observers (raters). In
addition, the foods and beverages present in each picture
were categorized and the impact on the peer rating scale
by food/beverage category was examined. Raters were
trained to provide a 'healthiness' score using criteria
from the 2010 US Dietary Guidelines. Results The average
of all three raters' scores was highly correlated with
the peer healthiness score for all photos (r=0.88,
p
U2 - 10.1136/amiajnl-2014-002636
DO - 10.1136/amiajnl-2014-002636
M3 - Article
SN - 1067-5027
VL - 22
SP - 112
EP - 119
JO - Journal of the American Medical Informatics Association
JF - Journal of the American Medical Informatics Association
IS - e1
ER -