Table 4.

Incidence of nausea and vomiting in the presence or absence of underlying diseases and risk factors

	Types	Total	Fasting group (%)	Non-fasting group (%)	p-value
Underlying diseases	W/O	44/54439 (0.08)	17/27599 (0.06)	27/26840 (0.10)	0.109
W	35/56397 (0.06)	15/24208 (0.06)	20/32189 (0.06)	0.994
Risk factors	W/O	57/63478 (0.09)	25/33654 (0.07)	32/29824 (0.11)	0.166
W	22/47358 (0.05)	7/18153 (0.04)	15/29205 (0.05)	0.530

W/O, without; W, with; W/O, without.

Note: One patient may have multiple underlying diseases or multiple risk factors.