Table 1.

Comparison of each variable at baseline and at follow-up

variables	monitor usage	Baseline/ Follow-up	median (min-max)	pa	pb
GI	Yes	Baseline	0.17 (0–0.67)	0.715
		Follow-up	0.08 (0–0.50)
	No	Baseline	0 (0–0.59)	0.786	0.370
		Follow-up	0.17 (0–0.50)		0.673
PHP	Yes	Baseline	16 (13–21)	0.029
		Follow-up	6 (0–12)
	No	Baseline	14 (6–20)	0.778	0.167
		Follow-up	13 (2–26)		0.114
SEOH	Yes	Baseline	33 (21–49)	0.574
		Follow-up	42 (22–56)
	No	Baseline	38 (22–50)	0.310	0.114
		Follow-up	43 (31–51)		0.277

^aWilcoxon signed rank test to compare between baseline and follow-up in monitor usage group or monitor non-usage group, respectively

^bMann-Whitney test to compare between yes and no regarding monitor usage in baseline or follow-up, respectively