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. 2022 Apr 15;13(5):1715–1724. doi: 10.1093/advances/nmac037

FIGURE 2.

FIGURE 2

Graded risk of bias for the selected studies (20). A, Random sequence generation (selection bias). B, Allocation concealment (selection bias). C, Blinding of participants and personnel (performance bias). D, Blinding of participants and personnel in gastroparesis symptom scores. E, Blinding of participants and personnel in gastric emptying rate. F, Blinding of outcome assessment (detection bias). G, Blinding of outcome assessments in gastric emptying rate. H, Blinding of outcome assessments in gastroparesis symptom scores. I, Incomplete outcome data (attrition bias). J, Incomplete outcome data on gastric emptying rate. K, Incomplete outcome data on gastroparesis symptom scores. L, Incomplete outcome data on general health questionnaires. M, Selective reporting (reporting bias). N, Measurement outcome. O, Carryover bias. P, Bias in classification of intervention. Q, Confounding. R, Bias in selecting study participants. S, Bias due to deviation from intended intervention.