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All-cause mortality of patients with dyslipidemia up to 19 years after a multidisciplinary lifestyle modification
Lena Håglin1, Sara Lundström, Gunnar Kaati
1Department of Public Health and Clinical Medicine, Family Medicine, University of Umeå, Sweden.
Insights
A comprehensive lifestyle modification program significantly reduced long-term all-cause mortality in patients with dyslipidemia. This intervention demonstrated a sustained benefit, highlighting its effectiveness for cardiovascular risk reduction.
Area of Science:
- Cardiovascular Health
- Preventive Medicine
- Public Health
Background:
- Individual lifestyle factors are linked to cardiovascular and all-cause mortality.
- Previous studies indicated risk reductions from comprehensive lifestyle programs.
- The study aimed to evaluate long-term mortality outcomes in patients undergoing lifestyle modification for cardiovascular disease prevention.
Purpose of the Study:
- To assess the long-term impact of a lifestyle modification program on all-cause mortality.
- To determine if the program's benefits varied by diagnosis (dyslipidemia, hypertension, type 2 diabetes, coronary heart disease).
Main Methods:
- A randomized trial involving 325 patients, with 239 randomized to the lifestyle program and 86 to usual care.
- The program included a 4-week residential intervention focusing on diet and exercise, with follow-up visits at 1 and 5 years.
- All-cause mortality was tracked for 11-12 years and 18-19 years post-intervention.
Main Results:
- Patients with dyslipidemia showed a 76% relative risk reduction (RRR) in all-cause mortality at 11-12 years (HR 0.24, P=0.033).
- This significant RRR for dyslipidemia patients persisted at 18-19 years, with a 66% reduction (HR 0.34, P=0.026).
- No significant RRR in all-cause mortality was observed for patients with hypertension, type 2 diabetes, or coronary heart disease.
Conclusions:
- The lifestyle modification program achieved a significant and sustained long-term reduction in all-cause mortality specifically for patients with dyslipidemia.
- These findings underscore the importance of targeted lifestyle interventions for individuals with specific cardiovascular risk factors.
Background:
Many studies have shown that individual lifestyle factors are associated with cardiovascular mortality and all-cause mortality. Observational studies of comprehensive programmes have reported risk reductions. The objectives were to assess the long-term all-cause mortality by diagnosis in patients referred to a lifestyle modification programme, aimed at combating coronary heart disease and stroke.
Methods:
A randomized trial with 325 patients referred to the centre between 1988 and 1989 for dyslipidemia, hypertension, type 2 diabetes and coronary heart disease; 239 patients were randomized to the programme, 86 randomized to usual care. Cases were admitted to the centre in groups of 30 for a 4-week residential comprehensive activity, in total 114 full-time hours, focusing on food preferences and selections, and physical exercise. The activities were repeated during a 4-day revisit to the centre 1 year and 5 years after the 4-week intervention. Controls were referred back to their doctors, mainly in primary care, for usual care. Main outcome measure was all-cause mortality during 11–12 and 18–19 years after intervention.
Results:
At follow-up 11–12 years after referral, the relative risk reduction (RRR) was 76% with the intention-to-treat analysis among cases admitted for dyslipidemia (hazards ratio 0.24, confidence interval 0.06–0.89, P = 0.033). After 18–19 years, the RRR was 66% (hazards ratio 0.34, confidence interval 0.13–0.88, P = 0.026). No RRR was found for the other three diagnoses.
Conclusion:
Patients admitted for dyslipidemia reached a real long-term RRR of all-cause mortality. They had by definition a need for this programme.
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