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  • Fat-free mass at admission predicts 28-day mortality in intensive care unit patients : the international prospective observational study Phase Angle Project
    Thibault, Ronan ...
    Phase angle as measured by bioelectrical impedance analysis reflects fat-free mass. Fat-free mass loss relates to worse prognosis in chronic diseases. Primary aim of this study was: to determine the ... association between fat-free mass at intensive care unit admission and 28-day mortality. METHODS: Ten centres in nine countries participated in this multicentre prospective observational study. The inclusion criteria were age >18 years; expected length of stay >48 h; absence of pacemaker, heart defibrillator implant, pregnancy and lactation. Fat-free mass was assessed by measurement of the 50-kHz phase angle at admission. The primary endpoint was 28-day mortality. The area under the receiver operating characteristic curve (AUC) was used to assess prediction of 28-day mortality by fat-free mass at ICU admission. The variables associated with 28-day mortality were analysed by means of multivariable logistic regression. RESULTS: Of the 3605 patients screened, 931 were analysed: age 61 % 16 years, male 60 %, APACHE II 19 % 9, body mass index 26 % 6, day 1 phase angle 4.5° % 1.9°. Day 1 phase angle was lower in patients who eventually died than in survivors (4.1° % 2.0° vs. 4.6° % 1.8°, P = 0.001). The day 1 phase angle AUC for 28-day mortality was 0.63 [0.58-0.67]. In multivariable analysis, the following were independently associated with 28-day mortality: age (adjusted odds ratio (aOR) 1.014 [95 % confidence interval 1.002-1.027], P = 0.03), day 1 phase angle (aOR 0.86 [0.78-0.96], P = 0.008), APACHE II (aOR 1.08 [1.06-1.11], P < 0.001), surgical patient (aOR 0.51 [0.33-0.79], P = 0.002), and admission for other diagnosis (aOR 0.39 [0.21-0.72], P = 0.003). A multivariable combined score improved the predictability of 28-day mortality: AUC = 0.79 [0.75-0.82]. CONCLUSION: Low fat-free mass at ICU admission is associated with 28-day mortality. A combined score improves mortality predictability.
    Vir: Intensive care medicine. - ISSN 0342-4642 (Vol. 42, iss. 9, Sep. 2016, str. 1445-1453)
    Vrsta gradiva - članek, sestavni del
    Leto - 2016
    Jezik - angleški
    COBISS.SI-ID - 2415483
    DOI

vir: Intensive care medicine. - ISSN 0342-4642 (Vol. 42, iss. 9, Sep. 2016, str. 1445-1453)
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