“…Seven studies were conducted in Europe [15,25,27,30,33,35,37], four in Australia [24,26,32,39], four in Asia [14,19,28,36], two in North America [31,34], two in South America [29,38]. Nine studies included mixed medical and surgical population [14, 24-27, 29, 30, 32, 39], four included patients with stroke or head injury [31,33,34,36], one included only medical [38], one included only surgical patients [15], and population studied (medical/surgical) was unclear in four studies [19,28,35,37]. One study included only overweight (BMI ≥ 25) [27], one included only obese (BMI ≥ 30) patients [35], and one included patients with non-oliguric acute renal failure requiring PN [37].…”