Meta-analysis of the impact of prehabilitation on patients undergoing upper gastrointestinal tract tumor surgery

Figure 1 Literature screening flowchart. CNKI: China National Knowledge Infrastructure; VIP: VIP Chinese Scientific Journals Database.

Figure 2 Forest plot comparing preoperative six-minute walk distance (A) and postoperative six-minute walk distance (B) between the two groups. CI: Confidence interval.

Figure 3 Forest plot comparing postoperative complication rates between the two groups. CI: Confidence interval.

Figure 4 Forest plot comparing hospital stay durations (A) and intensive care unit care durations (B) between the two groups. CI: Confidence interval.

Figure 5 Forest plot for the subgroup analysis by geographic region of intensive care unit care durations between the two groups. CI: Confidence interval.

Figure 6 Forest plot comparing postoperative mortality rates between the two groups. CI: Confidence interval.

Figure 7 Forest plot comparing preoperative albumin (A) and albumin levels one week post-operatively (B) between the two groups. CI: Confidence interval.

Figure 8 Publication bias test for incidence of complications and hospital stay duration. A: Funnel plot of publication bias for the odds ratio estimates; B: Funnel plot of publication bias for the mean difference estimates. OR: Odds ratio.