Table 4. Simple regression analysis for the correlation of EV71 detection rate of mild cases to severe case proportion among all patients on a monthly basis.

	Non-standard coefficient		Standard coefficient
	Coefficient β	Coefficient standard error	Coefficient β	t value	p value
Constant	–0.080	0.010		–7.895	0.000
EV71 detection rate	0.006	0.000	0.945	15.787	0.000