2 j.buckley ifa are b bs healthier than parents_may12_v4
TRANSCRIPT
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Are Baby Boomers Healthier than their Parents?
11th Global Conference of the International Federation of Aging 28May to 1st June, 2012
Dr Jennifer Buckley Dr Lisel O’Dwyer
Professor Graeme Hugo
University of Adelaide, Australian Population and Migration Research Centre
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Overview
Conceptual Framework
Methods
Impact of Social Change
Health Differences
Implications
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Conceptual Framework Why Study Cohort Differences?
Demographic Theories of Social Change − Generational Units (Mannheim) − Cohort Flow, Inter-cohort comparison (Ryder) − Ageing and Society Paradigm (Riley et al)
Socio-cultural Theories of Social Change − Late Modernity (Giddens) − Risk (Beck)
Non-biological factors which influence the ageing process
Differences in ageing patterns between cohorts
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Methods
Methods
• 1989-90 Australian NHS data 1989-90 (n=54 576)
• 2007-08 Australian NHS data (n=20 788)
• Surveys use a stratified multistage area sample
Comparing same age-group at two different time points
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Birth Cohort
Age Range in
Census Year
1989-90 2007-08
1927-1936 –
Pre-war Cohort
53-62
n=1458
1946-1955 –
Baby Boomers
53-62
n=2498
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Impact of Social Change
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Key Changes to the Social Context
Factors related to changes in values and lifestyle
Post World War II Economic Security
Welfare State
The Pill
Feminism
Communications technology
Transformation of everyday institutions Education
Religion
Marriage
Family
Work
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Educational Attainment Baby Boomers and their Parents at Age 45-54
6,2
24,7
3,4
43,4 46,1
18,5
0
5
10
15
20
25
30
35
40
45
50
Highest Year of
Secondary School
Post secondary quals Bachelor or higher
Per
cen
tag
e %
Parents' of Baby Boomers Baby Boomers
Source: ABS 1981; 2006
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Registered Marital Status Baby Boomers and their Parents at Age 50-59
Source: ABS; NHS 1989-90; 2007-08
0
10
20
30
40
50
60
70
80
90
Married Sep/Div Never Married Widowed
Perc
en
tag
e %
Pre-war Generation Baby Boomers
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Household Structure
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Source: ABS Census, 1986; 2006
0
2
4
6
8
10
12
14
Lone person households Two and three family households
Group Households
Perc
en
tag
e %
Pre-war Cohort Baby Boomers
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Employment Status Baby Boomers and their Parents at Age 50-59
0
10
20
30
40
50
60
70
80
Pre-war Generation Baby Boomers
Perc
en
tag
e %
Employed Unemployed Not in Labour Force
Source: ABS; National Health Survey, 1989-90; 2007-08
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Employment Status by Gender Baby Boomers and their Parents at Age 50-59
Source: ABS; National Health Survey, 1989-90; 2007-08
0
10
20
30
40
50
60
70
80
90
Pre-war Generation Baby Boomers Pre-war Generation Baby Boomers
Male Females
Pe
rce
nta
ge
%
Employed Not in Labour Force Unemployed
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Children Ever Born Females – Pre-war Cohort and Baby Boomers
Age 50-59
Source: ABS Census, 1986; 2006
0
10
20
30
40
50
60
70
None 1 2 3 or more
Perc
en
tag
e %
Pre-war Cohort Baby Boomers
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Implications for Health
Reduced social support Higher proportions divorced
Fewer children
Higher proportions living alone
Multiple commitments extended over longer time The sandwich generation
Women in paid work and caring
More uncertainty in relation to work and relationships
More diversity Education
Family structures
Experiences
Marital status
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Impact of Social Change - Lifestyle
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Increased Food Variety & Food Availability
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Changes to Physical Activity Levels Activity Calories Burned
Activity Calories Burned
Email Colleague 1 min 2 Walk to colleague’s
office – 1 min 4
Ride Elevator – 2 mins 3 Take stairs – 2 min 19
Order take-out – 1 min 1 Cook meal 70
Load dishwasher – 10
min 23 Wash dishes 80
Watch TV - 35 Play cards 52
Go to car wash 35 Wash car at home 104
Play video game 53 Play basketball 280
Mow lawn/ride-on
mower 88 Mow lawn/power mower 280
Source: OECD ......
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Changes in Lifestyle Patterns
Loss of predictable routine
Demise of the 1950s meal system
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Variables
• Self report data – Have you ever been told by a doctor or nurse that
you have ... ? – Do you have any other long term health conditions?
• Multiple Conditions variable
– Arthritis – Kidney disease – Diabetes – Depression – COPD – Asthma
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Comparison of Risk Factors
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0
10
20
30
40
50
60
70
80
Insufficient Exercise
Obesity (BMI ≥30)
High Blood Pressure
Current Smoking
Alcohol Risk High Cholesterol
Perc
en
tag
e %
Pre-war Cohort Baby Boomers
**p=<.001 Source: ABS; NHS 1989-90; 2007-08
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Comparison of Chronic Conditions
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0
5
10
15
20
25
30
35
Arthritis Hearing Loss
Asthma Diabetes Back problems -
Disc
Migraine COPD Kidney Disease
Pe
rce
nta
ge
%
Pre-war Cohort Baby Boomers
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**p=<.001; *p=<.05 Source: ABS; NHS 1989-90; 2007-08
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Multiple Chronic Conditions by Cohort
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64,5
30,3
4,7 .5
Pre-War Cohort
0 1 2 3 or more
53,7
33,2
9,1 4,0
Baby Boomers
0 1 2 3 or more
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**p=<.001 Source: ABS; NHS 1989-90; 2007-08
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Self-rated Health by Cohort
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10
20
30
40
50
60
70
80
90
Poor-Fair Good-Excellent
Perc
en
tag
e %
Pre-war Cohort Baby Boomers
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**p=<.001 Source: ABS; NHS 1989-90; 2007-08
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Gender Differences – Asthma and Migraine
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0
2
4
6
8
10
12
14
Females Males Females Males
Asthma Migraine
Pe
rce
nta
ge
%
Pre-war cohort Baby Boomers
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**p=<.001; *p=<.05 Source: ABS; NHS 1989-90; 2007-08
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Gender Differences – High Cholesterol
0
2
4
6
8
10
12
14
16
Males Females
Perc
en
tag
e %
Pre-war Chort Baby Boomers
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**p=<.001 Source: ABS; NHS 1989-90; 2007-08
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Gender Differences – Alcohol Risk
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10
20
30
40
50
60
70
No Risk Low Risk Med-High Risk
No Risk Low Risk Med-High Risk
Females Males
Perc
en
tag
e %
Pre-war Cohort Baby Boomers
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**p=<.001; *p=<.05 Source: ABS; NHS 1989-90; 2007-08
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Gender Differences - Smoking
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0
10
20
30
40
50
60
70
Smoker Ex-smoker Never smoked
Smoker Ex-smoker Never smoked
Females Males
Perc
en
tag
e %
Pre-war Cohort Baby Boomers
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**p=<.001 Source: ABS; NHS 1989-90; 2007-08
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Use of Other Health Practitioners
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0
2
4
6
8
10
12
Chiropractor Dietitian Naturopath Acupuncturist Osteopath
Perc
en
tag
e %
Pre-war Cohort Baby Boomers
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**p=<.001 Source: ABS; NHS 1989-90; 2007-08
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Private Health Insurance
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0
10
20
30
40
50
60
No private health cover
Hospital cover only
Both hospital and ancillary
cover
Ancillary cover only
Perc
en
tag
e %
Pre-war Cohort Baby Boomers
Source: ABS; NHS 1989-90; 2007-08
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Private Health Insurance – Gender Differences
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0
10
20
30
40
50
60
No Private Health Cover
Hospital &
ancillary
Hospital only
Ancillary only
No Private Health Cover
Hospital &
ancillary
Hospital only
Ancillary only
Females Males
Pe
rce
nta
ge
%
Pre-War Gen Baby Boomers
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*p=<.05 Source: ABS; NHS 1989-90; 2007-08
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Conclusion
Chronic conditions – worse health Self-reported health – better health Gender differences Policy
– Strategies for obesity and physical activity – Equitable access to health care and services – Effective integration of private and public health
provision
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Wittert 2006
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Acknowledgements and Contact Details
Acknowledgements
• This research was funded through an Australian Research Council Linkage grant • To Graeme Tucker and Rhiannon Pilkington for their assistance with the National Health Survey data Contact Details
Jennifer Buckley Email: [email protected]
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Limitations re Equivalence of Variables
• SRH – extra category in 2008
• Diabetes - Diagnostic criteria
– In 1989-90 - ≥7.8 mmol L
– In 2007-08 –≥ 7.0 mmol L
– We have not adjusted for this difference
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Notes on Multi Stage Area Sampling and weights used in the NHS
• Multistage sampling is a complex form of cluster sampling. Instead of using all the elements contained in the selected clusters you randomly selects elements from each cluster. Constructing the clusters is the first stage. Deciding what elements within the cluster to use is the second stage.
• How the ABS does it: household surveys conducted by the Australian Bureau of Statistics begin by dividing metropolitan regions into 'collection districts', and selecting some of these collection districts (first stage). The selected collection districts are then divided into blocks, and blocks are chosen from within each selected collection district (second stage). Next, dwellings are listed within each selected block, and some of these dwellings are selected (third stage). This method means that it is not necessary to create a list of every dwelling in the region, only for selected blocks. In remote areas,
• Stratified multi-stage area sampling frame of private dwellings – therefore does not allow statistical treatment as a simple random sample. This dealt with by using replication methods to estimate variances for the complex sample design and weighting procedure used in the NHS. The replicate weights are a series of variables that contain the information on the primary sampling unit and the strata used in the sampling design that allows correct calculation of the standard errors when analysing complex survey data.
• Weighting