Table 2.

Comparison of clinical and laboratory parameters before and after the intervention in the two groups

Intergroup comparison						Intragroup comparison
Variable	Stage	Group	Mean (SD)	Independent t-Test		Group	Paired t-Test
				t*	p-value		t**	p-value
IDWG (Kg)	Before	mHealth	3.6 (0.8)	-0.27	0.785	mHealth	-8.05	< 0.0001
		Face-to-Face	3.7 (0.7)
	After	mHealth	2.3 (0.7)	-3.45	0.001	Face-to-Face	-6.023	< 0.0001
		Face-to-Face	2.9 (0.6)
K (mmol/l)	Before	mHealth	5.1 (0.4)	1.17	0.243	mHealth	-3.78	0.001
		Face-to-Face	5.0 (0.3)
	After	mHealth	4.6 (0.6)	0.94	0.349	Face-to-Face	-4.83	< 0.0001
		Face-to-Face	4.4 (0.5)
P (mg/dl)	Before	mHealth	4.3 (0.9)	0.90	0.370	mHealth	-3.21	0.003
		Face-to-Face	4.1 (0.9)
	After	mHealth	3.6 (0.6)	-0.77	0.441	Face-to-Face	-1.70	0.097
		Face-to-Face	3.7 (0.6)
TC (mg/dl)	Before	mHealth	203.2 (44.1)	-0.25	0.803	mHealth	-4.22	< 0.0001
		Face-to-Face	205.8 (41.5)
	After	mHealth	158.3 (36.3)	-0.46	0.642	Face-to-Face	-4.83	< 0.0001
		Face-to-Face	162.5 (39.3)
TG (mg/dl)	Before	mHealth	213.9 (114.1)	0.12	0.905	mHealth	-4.36	< 0.0001
		Face-to-Face	210.7 (106.4)
	After	mHealth	155.4 (76.1)	-2.16	0.034	Face-to-Face	-0.91	0.365
		Face-to-Face	198.8 (90.8)
AL (g/dl)	Before	mHealth	3.7 (0.4)	1.73	0.087	mHealth	1.91	0.064
		Face-to-Face	3.5 (0.4)
	After	mHealth	3.9 (0.2)	-0.08	0.932	Face-to-Face	3.88	< 0.0001
		Face-to-Face	3.9 (0.2)
FER (µg/l)	Before	mHealth	289.7 (181.6)	0.31	0.756	mHealth	-2.15	0.038
		Face-to-Face	275.0 (211.9)
	After	mHealth	207.8 (99.2)	-0.60	0.545	Face-to-Face	-1.430	0.162
		Face-to-Face	221.7 (91.2)

SD: Standard Deviation, df; degree of freedom, IDWG: interdialytic weight gain, K: potassium, P: phosphorus, TC: total cholesterol, TG: triglyceride, AL: albumin, FER: ferritin

^*df = 68, ^**df = 34