What does this research mean for the field?

Improvements in survival among hospitalized myocardial infarction patients contributed to the decline in coronary heart disease mortality between 1970 and 1980, but survival rates plateaued with no significant improvement between 1980 and 1985. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This analysis aims to determine the survival trends of patients hospitalized for myocardial infarction between 1970 and 1985.

January 1, 1992CirculationOpen Access

Trends in survival of hospitalized myocardial infarction patients between 1970 and 1985. The Minnesota Heart Survey.

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Why the study?

Does the era of hospitalization (1980 or 1985 vs 1970) improve survival in patients with myocardial infarction?

Key Points

This analysis aims to determine the survival trends of patients hospitalized for myocardial infarction between 1970 and 1985.
Population-based study utilizing a 50% sample of hospitalized MI patients in the Twin Cities area.
Reviewed mortality rates at 28 days and 4 years post-MI for the years 1970, 1980, and 1985.
Adjusted mortality rates for severity factors including age, previous MI, admission heart rate, and systolic blood pressure.
28-day mortality decreased in men from 18% in 1970 to 12% in 1980 (RR, 0.66; 95% CI, 0.47, 0.92) and in women from 27% to 22% (RR, 0.69; 95% CI, 0.46, 1.04).
No significant change in 28-day mortality from 1980 to 1985 (p > 0.25).
4-year survival improved for men (RR, 0.67; 95% CI, 0.54, 0.83) and women (RR, 0.72; 95% CI, 0.54, 0.98) from 1970 to 1980, but no significant change was observed from 1980 to 1985 (p > 0.25).

Structured PICO

Does the era of hospitalization (1980 or 1985 vs 1970) improve survival in patients with myocardial infarction?

Population

50% sample of patients hospitalized for validated definite myocardial infarction (MI) in the seven-county Twin Cities (Minneapolis and St. Paul) metropolitan area in 1970, 1980, and 1985

Intervention

Hospitalization for MI in 1980 or 1985

Comparator

Hospitalization for MI in 1970

Outcome

28-day mortality and 4-year mortalityhard clinical

Improvements in survival among hospitalized MI patients contributed to the overall decline in coronary heart disease mortality between 1970 and 1980, but this trend plateaued between 1980 and 1985.

Discussion

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Implication

Lower adjusted 28-day MI mortality in 1980 vs 1970 was associated with CHD mortality decline; extends prior trends but leaves post-1980 plateau open.

Cite This Study

McGovern et al. (1992) studied this question.

synapsesocial.com/papers/6a1bc57c1567d2fc4d5ef41d https://doi.org/10.1161/01.cir.85.1.172

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Implication

Lower adjusted 28-day MI mortality in 1980 vs 1970 was associated with CHD mortality decline; extends prior trends but leaves post-1980 plateau open.

Trends in survival of hospitalized myocardial infarction patients between 1970 and 1985. The Minnesota Heart Survey.

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Trends in survival of hospitalized myocardial infarction patients between 1970 and 1985. The Minnesota Heart Survey.

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Also Consider