Figure 1.
PRISMA flow diagram of study selection.
Figure 2.
Risk of bias assessment across included studies.
Figure 3.
Forest plots of probiotic supplementation effects in chemotherapy-treated cancer patients: (A) diarrhea; (B) nausea and vomiting.
Figure 4.
Forest plots of sub-group meta-analysis of probiotic supplementation effects in chemotherapy-treated cancer patients based on its strain.
Figure 5.
Forest plots of prebiotic supplementation effects in chemotherapy-treated cancer patients: (A) diarrhea; (B) nausea and vomiting; (C) constipation.
Figure 6.
Forest plots of synbiotic supplementation effects in chemotherapy-treated cancer patients: (A) diarrhea; (B) nausea and vomiting.