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Comparative Study
. 2002 Apr 20;324(7343):939-42.
doi: 10.1136/bmj.324.7343.939.

Comparison of cardiovascular risk between patients with type 2 diabetes and those who had had a myocardial infarction: cross sectional and cohort studies

Josie M M Evans  1 , Jixian Wang, Andrew D Morris
Affiliations
Comparative Study

Comparison of cardiovascular risk between patients with type 2 diabetes and those who had had a myocardial infarction: cross sectional and cohort studies

Josie M M Evans et al. BMJ. .

Erratum in

  • BMJ 2002 Jun 8;324(7350):1357

Abstract

Objective: To compare risks of cardiovascular outcomes between patients with type 2 diabetes and patients with established coronary heart disease.

Design: Cross sectional study and cohort study using routinely collected datasets.

Setting: Tayside, Scotland (population 400 000) during 1988-95.

Subjects: In the cross sectional study, among patients aged 45-64, 1155 with type 2 diabetes were compared with 1347 who had had a myocardial infarction in the preceding 8 years. In the cohort study 3477 patients of all ages with newly diagnosed type 2 diabetes were compared with 7414 patients who had just had a myocardial infarction.

Main outcome measures: Risk ratios for death from all causes, cardiovascular death, and hospital admission for myocardial infarction were calculated by Cox proportional hazards analysis and adjusted for age and sex.

Results: In the cross sectional study the adjusted risk ratio for death from all causes for patients who had myocardial infarction compared with those with diabetes was 1.33 (95% confidence interval 1.14 to 1.55) [corrected], and the risk ratio for hospital admission for myocardial infarction was 2.27 (1.82 to 2.83) [corrected]. In the cohort study, patients who had just had a myocardial infarction had a higher risk of death from all causes (adjusted risk ratio 1.35 (1.25 to 1.44)), cardiovascular death (2.93 (2.54 to 3.41)), and hospital admission for myocardial infarction (3.10 (2.57 to 3.73)).

Conclusions: Patients with type 2 diabetes were at lower risk of cardiovascular outcomes than patients with established coronary heart disease.

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Figures

Figure 1
Figure 1
Kaplan-Meier survival curve showing time to death from any cause in patients with newly diagnosed type 2 diabetes and patients who had just had a myocardial infarction (MI)
Figure 2
Figure 2
Kaplan-Meier survival curve showing time to death from cardiovascular causes in patients with newly diagnosed type 2 diabetes and patients who had just had a myocardial infarction (MI)
Figure 3
Figure 3
Kaplan-Meier survival curve showing time to hospital admission for myocardial infarction in patients with newly diagnosed type 2 diabetes and patients who had just had a myocardial infarction (MI)
See this image and copyright information in PMC

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