Section 4 of 19
Study selection and inclusion criteria
Junji Hatakeyama, Ryo Yamamoto, Minoru Yoshida, Kohei Yamada, Kazushige Inoue, Takayuki Irahara, Satomi Ichimaru, Nobuto Nakanishi, Naoki Higashibeppu, Kensuke Nakamura, and Joji Kotani · about 1 minutes
Randomized controlled trials (RCTs) enrolling critically ill adult patients (≥18 years) admitted to the ICU for any medical, surgical, or trauma-related condition were included. Eligible interventions comprised prebiotics, probiotics, or synbiotics, which were compared with the control. Control conditions were defined as placebo or usual care; enteral formulas containing dietary fiber as part of usual care were also considered controls.