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Journal of Intensive and Critical Care Nursing | Volume 2
October 24-25, 2019 | Zurich, Switzerland
2nd European
Nursing Congress
International Conference on
Clinical Nursing & Practice
Joint Event
&
J Intensive Crit Care Nurs, Volume 2
Development and Validation of a Multidimensional Experimental Screening Instrument
to Measure Multiple Barriers Associated with Individual Dietary Practices: A Secondary
Analysis of NHANES Datasets 2011-2012
Enia Yah Zigbuo-Wenzler
Medical University of South Carolina, USA
C
onsuming a poor diet is a known risk factor for many
chronic diseases. Individuals with less apparent barriers
tend to adhere to diet and lifestyle modifications more
frequently than those who has more barriers? Accurately
measuring dietary barriers at the individual level could inform
personalized prevention interventions, particularly those
aiming to prevent chronic diseases. While instruments are
available to assess factors associated with diet, none are
designed to simultaneously measure the multi-dimensional
nature of barriers associated with dietary practices. This
dissertation research was to develop a psychometrically
sound instrument that can be administered by health
practitioners to measure dietary barriers. First, an expert
review panel established content validity for the variables,
which were considered as items on the Dietary Health
Status (DHS) instrument. Subsequently, an exploratory
factor analysis was conducted to assess and validate the
DHS instrument; and finally, relationships between DHS
scores and clinical and demographic characteristics were
explored among participants to test if the DHS instrument
could detect differences. The 2011-2012 NHANES datasets
were used in conjunction with the What We Eat in America
(WWEIA) 24-hour dietary recall data in this study. A total of
3,705 participants met the study inclusion criteria. Results
suggested: 1) content validitywas established for a total of 170
variables representing 12 theory-based domains identified
as potential dietary barriers; 2) factor analysis supported
adequate construct and internal validity for the DHS
instrument whole scale and its10 subscales, affirming DHS’s
multidimensionality; and 3) DHS total scores were strongly
associated with demographic and clinical characteristics;
cases with lower DHS scores were more likely to have
hypertension, or diabetes which suggest the relationship
between dietary barriers and indicators for chronic diseases.
Results should inform the development of a comprehensive
and practical screening tool that benefits practitioners to
identify dietary barriers to improve the health of U.S. adults.
e
:
ezigbuo@yahoo.comNotes: