Nutrition Assessments Flashcards
whats the difference between screening and assessment
the scope (broad vs. detailed)
and
the purpose (identifying potential issues vs. understanding specific issues) of each process.
Screening is like asking, “Is there something we should look at more closely for any of these people?”
Assessment is then asking, “What exactly is going on with this person, and what do we do about it?”
What is non response bias
systemic error
sample doesnt rep population of interest
what is repondent bias
systematic error
under or over reporting
what is interviewer bias
systemic error
probing for info, omittinf questions
what are some random errors?
-memory lapses
-incorrect portion size estimates
-coding errors
-mistakes with dish handling
-inacc food composition values
types of systemic errors
non-response
respondant
interviewer
how does random error affect results?
affects precision
but can be improved by increasing n or replicates etc
how does systemic error affect results?
validity
(how well is the tool measuring what ur aiming to measure)
cant solve but def can avoid
2 types of anthropometric measurements
growth
body composition
sensitivity vs specificity in a test
who does have diease
vs
who doesnt have disease
you have a patient who cant stand. how can u measure their height?
elbow breadth
lower leg height
knee height
mid arm span
at what point is taking WC pointless to assess risk of disease development
BMIs beyond 35
use it for 18.5 -34.9 BMIs
BMI for underweight, overweight and obese?
less than 18.5
25-29
30 plus
according to the ponderal index, what is considered overweight, normal and malnourished?
3.0 or more
2.5-3.0
2.0-2.5
what would be the best indicator for acute malnutrition?
changes in body fat
