Health Behaviour Change Flashcards

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1
Q

How have the causes of death changed form 1990-2012

A

1990:
Infectious disease - 24%
All other causes- 34%

2012:
Infectious diseases - 1%
Cancer- 30%
Circulatory diseases - 29%

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2
Q

What were the top 3 causes of death in males in 2015

A
  1. Heart Disease
  2. Dementia and A.D
  3. Lung cancer
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3
Q

What were the top 3 causes of deaths in females in 2015

A
  1. Dementia and A.D
  2. Heart Disease
  3. Stroke
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4
Q

What did the peto study show regarding the fate of smokers aged 20

A

Half of them died due to smoking

With half of this cohort dying before the age of 70.

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5
Q

Describe the impact of smoking on mortality

A

 About half of all persistent cigarette smokers are killed by their habit—a quarter while still in middle age (35-69 years).
 Smoking is the number one cause of preventable illness and death.
 On average, cigarette smokers die about 10 years younger than non-smokers.
 Current prevalence of 19% in UK adults (45% in mid 70s)

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6
Q

Describe the epidemiology of overweight and obese adults in England (2012-2014)

A

Almost 7 out of 10 men are overweight or obese (66.4%)
Almost 6 out of 10 women are overweight or obese (57.5%)
Adult (aged 16+) overweight and obesity: BMI ≥ 25kg/m2

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7
Q

how do we calculate high risk categories

A

Adults aged 16+ years. Using combined waist circumference and BMI classification, as recommended by NICE
proportion of people in high risks groups has increased in recent years.

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8
Q

Why are we getting fatter

A

Individual food consumption- our food supply determines what we buy and eat
Individual psychology- societal influences: media, peer influences, and culutre
Individual activity- depends on our activity environment
Biology: Influence of our genetics and ill health.

We live in an obesogenic environment- more sugary, fatty foods and more escalators (less physical activity).

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9
Q

What did the Guyunet study show regarding obesity

A

As our calorie intake increased- so did the proportion of obese and very obese people in the population.

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10
Q

Describe how auto-dependency can make us fat

A

Study showed that increased uses of walking, cycling and transit use were associated with lower levels of obesity.

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11
Q

Which factors are considered to be the 5 modern daily killers

A
Dietary excess 
Alcohol consumption 
Lack of exercise 
Smoking 
Unsafe sexual behaviour
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12
Q

Describe the importance of health behaviour in medicine

A

TACKLING DISEASE = CHANGING BEHAVIOUR

We can change people’s behaviours regarding these 5 biggest killers to prevent disease and morbidity.

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13
Q

Define health behaviour

A

“Any activity undertaken by an individual believing himself to be healthy, for the purpose of preventing disease or detecting it at an asymptomatic stage”

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14
Q

What did the Alameda study show regarding health behaviour

A
  • 6,928 residents of Alameda county, CA, completed a list of 7 health behaviours they practised regularly- not smoking, eating breakfast, not snacking, regular exercise, getting 7-8 hrs sleep, moderate alcohol, moderate weight.
  • At 10 year follow-up the mortality rate in individuals who practised all seven behaviours was less than 1/4 of that in individuals who practised three or less.
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15
Q

Summarise the behaviourally inspired causes of death

A

§ Causes of death (behaviourally inspired causes):

o Circulatory diseases have gone from 14% of deaths in 1900 to 29% of deaths in 2012.

o Causes of death in smokers in 50% of cases is due to the smoking.

§ Smoking is the number 1 cause of preventable illness and death (on average, smokers die 10 years younger than non-smokers).

o 7/10 men and 6/10 women in the UK are overweight.

§ Due to – complex reasons, increased calorie intake, auto-dependency (cars, etc.).

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16
Q

Describe the different levels of behaviour change interventions

A

Population: everyone targeted regardless of status e.g. Social media
Community: specific group targeted based on status e.g. Cardiac rehabilitation
Individual: targeted intervention for one person - motivational interviewing to help patient give up smoking

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17
Q

Describe the nutbeam study showing the impact of smoking education in schools

A
  • A programme of education about the effects of smoking was conducted in 39 comprehensive schools in England & Wales
  • The programme involved specially trained teachers providing teaching sessions spread over a 3 month period
  • Outcomes: a self report questionnaire combined with a saliva test before teaching, immediately afterwards and at 1 year follow-up

Knowledge change in intervention group significantly increased compared to control
However the % never smokes was the same in both groups- highlighting that education is not enough to change complex behaviours such as smoking.

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18
Q

Describe the potential role for education in changing health behaviours

A
  • Information does have an important role and is most effective for discrete behaviours (eg getting a child vaccinated)
  • Messagestailoredtoaparticularaudiencearemore effective (eg complete abstinence Vs condom use to reduce teenage pregnancy)
  • But often people need more than knowledge to change habitual lifestyle behaviours, particularly addictive behaviours (eg social & psychological support, skills to change)
19
Q

What are the cues for unhealthy eating

A

 Visual (eg. fast food signs, sweets at checkout)  Auditory (eg. ice cream bell)
 Olfactory (eg. smell of baking bread)
 Location (eg. the couch or car)
 Time (eg. evening)/ Events (eg. end of TV programme )  Emotional (eg. bored, stressed, sad, happy).

20
Q

Describe some reinforcement contingencies in changing unhealthy eating behaviours

A

 Positive reinforcement:
 Dopamine (feel good), filling an empty void/boredom.

 Praise for preparing a high-fat meal for the family.

 Negative Reinforcement:
 Avoid painful emotions by comfort eating.

 Punishment:
 Preparing a low fat meal is criticised.

21
Q

What is the issue with positive reinforcement in encouraging healthy eating

A

 Limited/delayed positive reinforcement for healthy eating:

 Efforts at dietary change/weight loss go unnoticed by others; Avoiding future health problems is too remote.

22
Q

Describe some stimulus control techniques to help modify behaviour

A
  • Keep ‘danger’ foods out of the house
  • Avoid keeping biscuits in the same cupboard as tea & coffee •Eat only at the dining table
  • Use small plates
  • Do not watch TV at the same time as eating.
23
Q

Describe counter conditioning as a behaviour modification technique

A

•Identify ‘high-risk’ situations/cues (eg stress) and ‘healthier’ responses:
–Eg Can you think of something other than eating that makes you feel better? Maybe something relaxing or exercise?

24
Q

Describe some examples of contingency management to help modify behaviour

A

Involve significant others to praise healthy eating choices Plan specific rewards for successful weight loss (not food!)
Vouchers for adherence to healthy eating & weight loss.

25
Q

Describe some naturally occurring reinforces that can be exploited to help modify behaviours

A

Improved self-esteem (positive reinforcement).

Reduction in symptoms of breathlessness (negative reinforcement).

26
Q

Describe the study on positive reinforcement intervention for behaviour change

A

Children given a talk on dental hygiene and then received one of three types of follow up:
1. 2. 3.
No further input
Discussion session
Reward for compliance with mouthwash programme
Outcome: Compliance with the mouthwash programme assessed over 20 weeks.

Reward group showed highest levels of compliance- but this compliance reduced over time

27
Q

Describe the study on the use of incentives to change behaviour

A

 Five year review – incentives used in smoking cessation schemes were most effective those aimed at weight loss were the least effective.
 E.g. Successful scheme in Dundee offered cash to expectant mothers for giving up smoking - over 90% of the 52 participants quit throughout pregnancy and for 3 months after.

However, a financial incentive did not work for changing unhealthy eating behaviours.

28
Q

Describe the limitations of reinforcement strategies used to try and modify behaviours

A
  • Lack of generalization (only affects behaviour regarding the specific trait that is being rewarded).
  • Poor maintenance (rapid extinction of the desired behaviour once the reinforcer disappears)
  • Impracticalandexpensive.
29
Q

Describe the study on the use of fear arousal to modify behaviour

A
  • 50 high school students given one of three different lectures on dental health.
  • Lectures designed to induce low, moderate or high fear.
  • Effect on subsequent dental hygiene behaviour was measured with self-report questionnaires one week later.

Low level of feat was more effective in behaviour change
High levels of fear- negative reinforcer -so lead to avoidance and thus we don’t learn the new behaviour

30
Q

What happens to an individual if they live with smokers in their house

A

Their likelihood of smoking increases with the number of smokers in that household.

31
Q

Describe the peer influences on adult smoking

A

 Adolescents are particularly susceptible to social influences given their developmental stage and the importance of school and peer groups.
 Substantial peer group homogeneity with respect to adolescent smoking.
 Best friends have the greatest influence on adolescent smoking, followed by peer groups.

32
Q

Describe the Waterloo smoking prevention project

A
  • High school students allocated to a smoking prevention or control condition.
  • The programme consisted of 6 sessions including rehearsing skills to build confidence in ability to resist peer pressure to smoke.
  • Significant effect in reducing number of children starting smoking, especially amongst those with family members who smoked.
33
Q

Define what is meant by the expectancy-value principle

A

The potential for a behaviour to occur in any specific situation is a function of the expectancy that the behaviour will lead to a particular outcome and the value of that outcome”

e.g a patient in cardiac rehabilitation is told that exercising will give him extra years of life

Exercising = behaviour
Expectancy= how likely that behaviour will improve their lives
value= how much they treasure the outcome.
34
Q

Outline the health belief model

A

Likelihood of behaviour change depends on:
perceived threat- this depends on demographic variables (age, race, ethnicity), structural variables (knowledge of disease and prior contact with disease), and also the perceived susceptibility and seriousness of the disease. Also depends on cue to action, reminder from a doctor/friend and advice from others.

Also depends on the perception of the behaviour:
Perceived benefits of the behaviour
Perceived cost and barriers to the behaviour
This is also influenced by modifying factors, both demographic and structural.

modifying factors also influence perceived susceptibility and seriousness.

35
Q

Apply the health beliefs model to deciding wether to get a flu vaccine or not

A
  • Susceptibility – “A lot of people I know have got flu symptoms”
  • Seriousness – “It’s not something to really worry about”
  • Benefits – “The vaccination will stop me getting sick”
  • Costs/barriers - “The injection will be painful and it might make me ill for a while”
  • Cues – Doctor strongly advises to have it.
36
Q

Apply the health beliefs model to smoking cessation

A

• Explore Cues to Action:
Has anything made you think about giving up smoking? • Explore perceived susceptibility and severity:
How do you think smoking is affecting your health? What would it be like if you got it (eg lung cancer)?
• Explore perceived benefits and barriers:
What are the pros and cons of smoking for you?
Is there anything stopping you from quitting?

37
Q

Describe the different efficacy beliefs

A
  • Outcome efficacy - Individuals expectation that the behaviour will lead to a particular outcome
  • Self Efficacy - Belief that one can execute the behaviour required to produce the outcome
38
Q

What are the influential factors on self efficacy

A

o Influencing factors include:

§ Mastery experience – goal-related success.

§ Social learning – observational (modelling) learning.

§ Verbal persuasion/encouragement.

§ Physiological arousal – breathlessness is worrying- but realise it’s normal when embarking on new behaviours

39
Q

Summarise the theory of planned behaviour

A

The Theory of Planned Behaviour is based on the idea that a person’s intention is the key determinant in predicting behaviour. The intention is influenced by the individual’s pros and cons towards the behaviour which form the attitude, and what the person believes others important to them think about the behaviour and their motivation to adhere to those beliefs. It also acknowledges the importance of self-efficacy or perceived behavioural control.

Pros and cons- beliefs about outcome and evaluation of outcome. This is related to the expectancy- value principle

Internal control factors- related to self-efficacy
External control factors - related to perceived costs/barriers

40
Q

Apply the theory of planned behaviour to smoking cessation

A

 Explore attitudes towards smoking:
What do you think about smoking?
Is smoking a good or bad thing for you?
 Explore the norms of important people around her:
What do your friends/family think about you smoking? Would you like to quit for [person]?
 Explore whether she intends to quit smoking:
Have you ever thought about quitting? Do you intend to quit in
the next few months?
 Explore how much control she thinks she has:
 Do you think you can quit? What makes you think that you can’t?

41
Q

Outline the transtheoretical (stages of change) model

A

Pre-contemplation -does not recognise the need for change or is not actively considering change
Contemplation- recognises problem and is considering change
Preparation- is getting ready to change
Action - is initiating change
Maintennance- is practicing change and is practicing new skills and behaviour to sustain change
The patient may then permanently lead to cycle or relapse
Relapse may occur- start cycle again at contemplation.

42
Q

Summarise the stages of change model

A

§ The model begins with pre-contemplation to enter the cycle.

§ The behaviour may often go around the cycle a few times before the individual permanently exists the cycle and thus the unwanted behaviour.

43
Q

Outline some approaches to modify health behaviour in a patient

A

§ Approaches to modify health behaviour in a patient:

o Listen/validate experiences.

o Remedy gaps in knowledge.

o Identify cues and reinforcers.

o Modify unhelpful beliefs.

o Enhance self-efficacy.

o Identify barriers to change.

o Identify good role-models.

o Encourage social support.

o Tailor intervention.

o Motivational interviewing.

44
Q

Summarise the COM-B model

A

Middle of wheel- sources of behaviour (capability, opportunity and motivation)
Outside this- intervention functions- which influence sources of behaviour
Outside this- policies- which influence intervention functions and thus sources of behaviour.