TABLE 1.

The demographic and poisoning information of theophylline exposures

	Children		Adults
	≤18 years		>18 years		Unknown		Total
	n	%	n	%	n	%	n	%
Gender
Male	27	31.8	58	68.2	0	0.0	85	100.0
Female	110	42.8	145	56.4	2	0.8	257	100.0
Unknown	9	75.0	3	25.0	0	0.0	12	100.0
Toxicity
Acute	142	42.1	193	57.3	2	0.6	337	100.0
Chronic	0	0.0	5	100.0	0	0.0	5	100.0
Acute-on-chronic	0	0.0	2	100.0	0	0.0	2	100.0
Unknown	2	20.0	6	60.0	0	0.0	10	100.0
Circumstance
Intentional	102	35.1	187	64.3	2	0.7	291	100.0
Unintentional	35	76.1	11	23.9	0	0.0	46	100.0
Unknown	9	52.9	8	47.1	0	0.0	17	100.0
Poisoning severity
Asymptomatic	102	47.7	112	52.3	0	0.0	214	100.0
Mild	37	32.7	74	65.5	2	1.8	113	100.0
Moderate	5	31.3	11	68.8	0	0.0	16	100.0
Severe	1	14.3	6	85.7	0	0.0	7	100.0
Unknown	1	25.0	3	75.0	0	0.0	4	100.0