DESMI - ROTAN CHD Pumps Annex to Manual T1456 CHD Service Manual
Type A behaviour, hostility and CHD: Rise and fall of a good idea?
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Transcript of Type A behaviour, hostility and CHD: Rise and fall of a good idea?
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Type A behaviour, hostility and CHD: Rise and fall of a
good idea?
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Reading
There is material on Type A and hostility in the standard texts and general papers. See also
Johnston DW 1993. The current status of the coronary prone behaviour pattern. J. Roy. Soc. Med. 86, 406-409. Dated (but short).
Matthews, K 1988. Coronary heart disease and Type A behaviors: update on and alternative to the Booth-Kewley and Friedman (1987) quantitative review. Psychol. Bull. 104, 373-80. Plus reply 381-384. Interesting discussion of Type A as risk factor. Worth reading
Miller et al 1991 Reasons for the trend toward null findings in research on Type A behaviour. Psychol. Bull, 110, 469-485. Serious stuff, follows up on Matthews.
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reading (cont.)
Miller TQ et al, 1996. A meta-analytic review of research on hostility and physical health. Psychol. Bull., 119, 322-348. A comprehensive review. Best read after Matthews. Don’t get bogged down in tables.
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Type A Behaviour (Friedman & Rosenman)
Characterised by:
•Competitiveness
•Time Urgency
•Hostility
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Questions from Structure Interview to
Measure Type A Behaviour1. Does your job carry heavy responsibility?
4. Are you satisfied with your present job?
6. When you play competitive games with children do you purposely let them win?
13. Do you get impatient when you are watching a slow worker?
14. Do you often do two things at a time, like reading while eating?
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Western Collaborative Group Study Rosenman, Brand, Jenkins, Friedman & Straus 1975
3154 men aged 30-59yrs classified on Structured Interview as either Type A or Type B
Extensive measurement of other risk factors
Followed up initially for 8.5 years for evidence of CHD, i.e., prospective study
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Were Type A’s more likely to experience CHD?
Type A Type B
Number 1589 1565
No. with CHD 178 79
Incidence 13.2 5.9
(annual per 1000)
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Could other risk factors explain the Type A & CHD link?
Analysed using multivariate statistics but also by simpler stratified analysis. Effects still present. See incidence rates for MI (39-49)
Type A Type B
Non smokers 7.4 3.4
Smokers 15.4 11.4
Normotensives 7.6 1.4
Hypertensives 33.1 12.6
Low Cholesterol 5.8 2.1
High Cholesterol 20.3 11.5
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What happened to the WCGS later?
Ragland & Brand 1988 studied survival of 257 men who had experienced CHD in original 8.5 yr follow upRagland,DR,Brand,RJ,(1988) Type A behaviour and mortality from coronary heart disease. The New England Journal of Medicine 318, 65-69Ragland & Brand 1988 looked at mortality over 22 years in original sampleRagland,DR,Brand,RJ (1988) Coronary heart disease mortality in the Western Collaborative Group Study: follow-up experience of 22 years. American Journal of Epidemiology,127,462 - 475.
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Ragland & Brand, 1988
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Ragland & Brand, 1998
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Williams et al, 1988
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Mechanisms linking Type A or Hostility and CHD
Could be any of the mechanisms we discussed linking stress and CHD
CV reactivity : extensively studied. Mixed finds
Effects of clotting process (Markovitz)
Other (see Kop)
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Intervention evidence (Important in establishing causality)
Usual texts. Also chapter by Krantz & Lundeman on Cardiovascular disorders in Johnston & Johnston good on interventions (& other parts of course). See also Krantz & McCeney Annual Rev Psychol 2002 53: 341-369.
There is discussion of interventions in CHD in Schiederman, Antoni, Sabb & Ironson (2001) Health Psychology: psychosocial and biobehavioural aspects pf chronic disease management. Annual Rev Psychology, 52: 555-580. Especially 555-560
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Friedman,M,Thorensen,CE,Gill,JJ,Powell,LH,Ulmer,D,Thompson,L,Price,VA,Rabin,DD,Breall,WS,Dixon,T,Levy,R,Bourg,E( 1984) Alteration of Type A behaviour and reduction in cardiac recurrences in postmyocardial infaction patients American Heart Journal,108,237,248
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Recurrent Coronary Prevention Project (RCPP- Friedman & Thoresen, 1985)
Questions
Can Type A behaviour be reduced?
Does reducing Type A reduce risk of recurrent MI
Design
Patients who had experienced an MI
Type A Change + cardiac care (592)
Cardiac care only (270)
Outcomes
Type Behaviour
New MI
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Components of Type A Change 1. Environmental 2. Behavioural 3. Cognitive
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Environmental
Speak to neighbours Drive more slowly No new tasks without dropping old Relax regularly
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Behaviour
Speech: talk more slowly Listening: less fidgeting, listen Waiting: practice waiting in
queues Modelling: pretend to be Type B
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Drills Monday Look at faces Tuesday Remove grimace Wednesday Walk more slowly
than spouse Thursday Eat more slowly Friday No knee jiggling Saturday Linger at table Sunday Speak more slowly
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Cognitive
Use feelings to examine beliefs How you see things is the problem Practice self- talk Do not see events & people as threats
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