Table 1.

Characteristics of the included studies.

References	Country	Setting	Studied area	Study type	Sample size (intervention vs. control)	Patient characteristics				Intervention	Control	Duration (months)
						Age * (year)	Male (%)	NAFLD diagnosis method	DM (%)
Fard et al. (18)	Iran	Single school of Nursing and Midwifery	Urban	RCT	30 vs. 30	Intervention 40.3 Control 38.3	76.3%	Ultrasound	0%	Telephone	Usual care	3
Axley et al. (19)	USA	Department of Internal Medicine, University of Texas Medical	Urban	RCT	13 vs. 17	Intervention 54 ± 2.7 Control 52 ± 2.3	33%	Ultrasound, elevate liver enzyme	Intervention 38% Control 30%	Text messaging	Usual care	6
Vilar-Gomez et al. (20)	USA	4 Universities	NA	Non-RCT	157 vs. 38	Intervention 53.8 ± 8.4 Control 52.3 ± 9.5	37%	Non-invasive scores	100%	On-site education classes or via web-based	Usual care	12
Mazzotti et al. (17)	Italy	Unit of Metabolic Diseases and Clinical Dietetics, University of Bologna	Urban and rural	Non-RCT	278 vs. 438	Intervention web-treated 46.0 ± 11.5 Intervention group-treated 55.1 ± 12.3	53.5%	Ultrasound	Intervention web-treated 21.6% Intervention group-treated 40.6%	Web-based program	Group-base program	24

DM, diabetes mellitus; NA, not available; NAFLD, non-alcoholic fatty liver disease; RCT, randomized controlled trial; USA, United States of America.

^*Values are presented as mean ± standard deviation.