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Fig. 2 | Perioperative Medicine

Fig. 2

From: Mismatch of populations between randomised controlled trials of perioperative interventions in major abdominal surgery and current clinical practice

Fig. 2

Changes in trial demographics over time. Solid orange lines represent mean of comparator sample for given parameter, dotted lines represent mean + / − 1 standard deviation. A Mean age of trial participants over time. B Mean weight of trial participants over time. C Mean BMI of trial participants over time

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Perioperative Medicine

ISSN: 2047-0525