From:  Systematic review of probiotic supplementation in Alzheimer’s patients with results on cognitive function, health biomarkers, and microbiota

 Methodological quality assessment of included studies using the PEDro scale [26].

StudyItemTotal%Quality
1234567891011
Agahi et al. [28] 20181111111111110100E
Akbari et al. [29] 20161111111111110100E
Akhgarjand et al. [30] 202211111111011990E
Hsu et al. [31] 202311111011111990E
Tamtaji et al. [32] 20191111111111110100E
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E: Excellent; 0: criterion not met; 1: criterion met; item 1: specified eligibility criteria; item 2: random assignment of subjects to groups; item 3: concealment of assignment; item 4: groups were similar at baseline in relation to the most important prognostic indicators; item 5: blinding of participants; item 6: blinding of personnel; item 7: blinding of the evaluator; item 8: outcome measures in at least 85% of participants; item 9: whether results were reported for all subjects who received treatment or were assigned to the control group, or if this was not possible, whether at least one key outcome was analyzed by “intention to treat”; item 10: statistical comparisons between groups for at least one key outcome; item 11: measures of variability and precision. PEDro: Physiotherapy Evidence Database.