To investigate the effect of odor exposure on eating behavior (appetite, intake) in nursing home residents with dementia
ID
Source
Brief title
Condition
- Other condition
Synonym
Health condition
eetlust, voedingsiname en lichaamsgewicht; dementie
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
We will compare outcome measures within-subject, between the two conditions
(odor, control/non-odor). Primary outcomes are self-report appetite ratings
(general, and specific, by means of pictorial and smiley scales), assessed in
total 36 times over the 12-week period); nutritional intake (assessed three
times per condition by means of 24hr recalls in combination with a food diary).
Secondary outcome
Secondary outcome is (change in) body weight (kg).
Background summary
The World Health Organisation (WHO) has declared dementia a current public
health priority. The prevalence of dementia is high and due to the aging
population the numbers are increasing (Alzheimer's Disease International,
2015). Malnutrition is common among older people generally (Visser et al.,
2017) and particularly common among people with dementia (Alzheimer's Disease
International, 2014). In the Netherlands the prevalence of malnutrition of
residents on psychogeriatric wards is higher compared with residents on somatic
wards (13.2% vs 9.0%) (Huppertz, van der Putten, Halfens, Schols, & de Groot,
2017). Malnourished elderly with dementia have more health problems and a
faster progress of the disease. Food choice and intake are partially guided by
sensory processes. It has been shown that exposure to (food) odours could
improve (specific) appetite and steer food choice and subsequent nutritional
intake. Based on pilot data from our group, food odor exposure may indeed be a
suitable *tool* to improve eating behavior in (malnourished) older people.
However, the effectiveness of odour exposure has not yet been investigated in a
population of elderly with dementia.
Study objective
To investigate the effect of odor exposure on eating behavior (appetite,
intake) in nursing home residents with dementia
Study design
One-arm, non-randomized, non-blinded intervention study with subsequent
treatment
Intervention
Participants residing on a small scale psychogeriatric ward of two nursing
homes of the same organization (Zorggroep Amaris) providing long-term care will
be exposed to a 12 week odor condition. Odors will be presented three times a
day (before breakfast, lunch and dinner), for ~30min each by means of
vaporizers, in low detectable concentrations. The type of odors will be matched
to the eating moment (e.g. bread odor for breakfast; beef odor for dinner). The
4 weeks preceding this odor condition will serve as the control, non-odor
condition. During both conditions, participants perform their normal routines
and eating behavior.
Study burden and risks
The burden for each participant (and/or their caregivers) comprises 3 times a
3-day food diary (about 30 minutes/time), 36 times an appetite questionnaire
(about 5 minutes/time) and 3 times assessment of body weight (which is already
part of the regular routine) during the 12 weeks intervention. Furthermore,
appetite ratings will be assessed 4 times (once per week) and nutritional
intake once during the 4 weeks control period and body weight will be assessed
once at the start of the 4 weeks control period. The risks and burden involved
in participating in this study are minimal for the participants. The odors will
be used in concentrations that can be found in consumer products (or lower),
are non-toxic and considered safe.
Werkdroger 1
Laren 1251CM
NL
Werkdroger 1
Laren 1251CM
NL
Listed location countries
Age
Inclusion criteria
* Residing on the selected psychogeriatric ward of a nursing home
* Informed consent given by the resident and/or by their legal representative, to participate in the study, to inform the general practitioner and inquire about their medical data
Exclusion criteria
* Use of (par)enteral nutrition
* Extreme overweight (BMI >35 kg/m2)
* Residing at a somatic or short-stay ward
* Terminal or vegetative stage (i.e. life expectancy <1 month)
not being able to communicate
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL64189.081.18 |