Clinical journal of the American Society of Nephrology : CJASN · 2013
Association of age and CKD with prognosis of myocardial infarction.
Сравнительное исследованиеСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Choi Joon Seok, Kim Min Jee, Kang Yong Un, Kim Chang Seong, Bae Eun Hui, Ma Seong Kwon, Ahn Young-Keun, Jeong Myung Ho, Kim Young Jo, Cho Myeong Chan, Kim Chong Jin, Kim Soo Wan, Korea Acute Myocardial Infarction Registry Investigators
Аннотация
BACKGROUND AND OBJECTIVES: CKD is a well known poor prognostic factor in myocardial infarction (MI). This study evaluated the prognostic significance of CKD, particularly in association with increasing age, in MI patients.
DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: This study was based on a retrospective cohort, the Korean Acute Myocardial Infarction Registry. Patients with a discharge diagnosis of MI were analyzed to investigate the association of CKD with mortality risk according to age. A total of 11,268 patients (mean age 63.0±12.6 years) were included and followed for 1 year.
RESULTS: In the full cohort, 26% of patients had CKD (n=2929). The prevalence of CKD was higher with advancing age. Eight hundred sixty-one patients (7.6%) died and the interaction for 1-year mortality between age strata and estimated GFR (eGFR) strata was significant (P<0.001). Within each age category, the absolute 1-year mortality was higher in patients with a low eGFR. However, the adjusted relative mortality risk for a low eGFR was lower with increasing age (adjusted hazard ratio [95% confidence interval] for 1-year mortality at eGFR <30 ml/min per 1.73 m(2): 4.84 [1.93-12.15], 4.53 [2.42-8.47], 3.51 [2.42-5.09], and 3.30 [2.41-4.52] for patients aged <55, 55-64, 65-74, and ≥75 years compared with those with eGFR ≥60 ml/min per 1.73 m(2), respectively).
CONCLUSIONS: For all age categories, the overall mortality was significantly higher as eGFR declined. The association of a lower eGFR with mortality was weaker with increasing age, indicating that the prognostic significance of CKD in MI patients is age dependent.
DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: This study was based on a retrospective cohort, the Korean Acute Myocardial Infarction Registry. Patients with a discharge diagnosis of MI were analyzed to investigate the association of CKD with mortality risk according to age. A total of 11,268 patients (mean age 63.0±12.6 years) were included and followed for 1 year.
RESULTS: In the full cohort, 26% of patients had CKD (n=2929). The prevalence of CKD was higher with advancing age. Eight hundred sixty-one patients (7.6%) died and the interaction for 1-year mortality between age strata and estimated GFR (eGFR) strata was significant (P<0.001). Within each age category, the absolute 1-year mortality was higher in patients with a low eGFR. However, the adjusted relative mortality risk for a low eGFR was lower with increasing age (adjusted hazard ratio [95% confidence interval] for 1-year mortality at eGFR <30 ml/min per 1.73 m(2): 4.84 [1.93-12.15], 4.53 [2.42-8.47], 3.51 [2.42-5.09], and 3.30 [2.41-4.52] for patients aged <55, 55-64, 65-74, and ≥75 years compared with those with eGFR ≥60 ml/min per 1.73 m(2), respectively).
CONCLUSIONS: For all age categories, the overall mortality was significantly higher as eGFR declined. The association of a lower eGFR with mortality was weaker with increasing age, indicating that the prognostic significance of CKD in MI patients is age dependent.