gender-based health and weight loss beliefs in knee osteoarthritis patients
TRANSCRIPT
Gender-based health and weight loss beliefs in knee osteoarthritis patients
Osteoarthritis: A chronic joint condition
Affects 12.5% of the Australian population
> 45 yrs
Cost approximately $1.2 billion in 2001
Knee OA, Obesity & Women
Effects women > men
Obesity main modifiable risk factor
Weight loss →improved symptoms
BMI → ↑symptom severity, particularly in
women
Despite this, those with OA still gain weight !
Study aims
Thus this study aims to investigate gender-based health and weight loss beliefs of those with knee osteoarthritis in order to develop a more effective weight loss intervention strategy for female sufferers
Methods
Participants:
100 patients attending a rheumatology or orthopedic
clinic with symptomatic knee OA
Aged 50 – 70 years
Data collection:
Two part questionnaire:
1. Health and weight loss beliefs
2. Knee symptoms (pain, stiffness and function)
Data Analysis
Data examined separately for men and
women
Analysed using SPSS
Statistically significance: p<0.05
Characteristics of Study Population
Body Weight Satisfaction*
Not satisfied Quite Satisfied Satisfied0
10
20
30
40
50
60
70
Men Women
Level of
body w
eig
ht
sati
sfa
cti
on (
%)
* Not significantly different
Body Shape Satisfaction*
Not Satisfied Quite satisfied Satisfied 0
10
20
30
40
50
60
70
80
Men Women
Level of
body s
hape s
ati
sfa
cti
on (
%)
*P=0.008 for trend
Weight Change in the Last 6 Months*
Gained weight Lost weight Stayed at the same weight
Don’t know0
10
20
30
40
50
60
70
MenWomen%
*P=0.008 for trend
Desired Weight*
Happy as I am 1 – 5 kg more Over 5kg more 1-5 kg less 6-10kg less Over 10 kg less
0
5
10
15
20
25
30
35
40
Men Women%
* Not significantly different
Dieting Frequency*
Never More than 10 times
1-4 times I am always on a diet to lose weight
5-10 times0
10
20
30
40
50
60
70
Men Women %
*P=0.013 for trend
Factors Causing Weight Gain
Genet
ics &
met
abol
ism
Amou
nt o
f phy
sical
act
ivity
/exe
rcise
Alcoho
l int
ake
Tota
l am
ount
of f
ood
eate
n
Smok
ing
Fat i
ntak
e
Suga
r int
ake
I don
’t te
nd to
put
wei
ght o
n
Other
None
Don’t
know
0
10
20
30
40
50
60
MenWomen%
*
**
*P=0.013; **P=0.031
Reasons to Exercise
To re
leas
e te
nsio
n/re
lax
To b
e ou
t of d
oors
To m
aint
ain
good
hea
lth
To so
cialis
e with
oth
er p
eopl
e
To lo
se o
r con
trol w
eigh
t
To h
ave
fun,
adv
entu
re o
r exc
item
ent
To fe
el o
r get
fit
To g
ain
a se
nse
of a
chie
vem
ent
To e
njoy
the
com
petit
ion
To w
ork
hard
er/ c
once
ntra
te b
ette
r
I don
’t pa
rticipa
te in
any
None
of th
e ab
ove
0
10
20
30
40
50
60
MenWomen %
*
*P=0.0004
Level of agreement with the statement:
A campaign in my locality aimed at
increasing participation in physical
activity/exercise would be effective in
encouraging me to do more.
Level of Agreement*
Disagree Neutral Agree0
10
20
30
40
50
60
70
MenWomen%
*P=0.009 across trend
Limitations
Cross-sectional designed study
Use of questionnaire
English participants only
Conclusions
Women: Diet more yet frequently gain weight Believe in exercise to control weight Would be receptive to targeted
intervention
Therefore…
A targeted intervention campaign focused
on dietary education and exercise
participation may be effective in
preventing weight gain and promoting
weight loss among women with knee OA