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Evidence does not support link
| The first 150 words of the full text of this article appear below. |
EDITOR
The summary points of Hemingway and Marmot's review of
psychosocial risk factors for coronary heart disease may be misleading.1 The first of these states that "prospective
cohort studies show a possible aetiological role for type
A/hostility." However, of the four prospective studies of hostility,
only two show any significant association between hostility and
coronary heart disease (one for women only). Six of the nine
aetiological studies of type A behaviour also show no association with
coronary heart disease. The other three studies give no information on completeness of follow up or whether outcomes such as angina were assessed in a blinded manner. One of these studies had minimal adjustment for confounding. No study showed any prognostic role for
type A behaviour or hostility. Taken together, these studies do not
represent robust evidence that these psychological variables have an
important role in the development or prognosis of coronary heart