Effects of probiotics on nonalcoholic fatty liver disease: A meta-analysis

Table 1 Methodological characteristics of the included studies in this meta-analysis

Ref.	Sample size	Randomization	Blinding	Diagnostic method	Intervention	Duration	Follow-up
Aller et al[22]	28 (14/14)	Table of numbers	Double-blind	Histological	Lactobacillus bulgaricus and Streptococcus thermophilus vs placebo	3 mo	Yes
Vajro et al[23]	20 (10/10)	Yes	Double-blind	Radiological	Lactobacillus GG vs placebo	8 wk	Yes
Malaguarnera et al[24]	66 (34/32)	Computer generated	Double-blind	Histological	Bifidobacterium longum + Fos vs placebo	24 wk	Yes
Wong et al[25]	20 (10/10)	Computer generated	Double-blind	Histological	Lepicol probiotic and prebiotic formula vs nothing	6 mo	Yes