Table 1. Study population characteristics.

Characteristics	Total (n = 919)	%	Bacterial causative agent (n = 154)	%	Other (n = 765)	%
Age (median), years	31		27		31
Male	512	56	87	56	423	55
Nationality
Japanese	870	95	150	97	720	94
Other	49	5	4	3	45	6
Country of residence
Japan	876	95	152	99	724	95
Other	43	5	2	1	41	5
Destination area
Southeast Asia	498	54	104	68	394	52
South Asia	128	14	17	11	111	15
Africa	120	13	8	5	112	15
East Asia	75	8	13	8	62	8
Central and South America	26	3	2	1	24	3
Central and West Asia	20	2	4	3	16	2
Oceania	19	2	4	3	15	2
Europe	17	2	1	1	16	2
North America	16	2	1	1	15	2
Destination country
Thailand	99	11	25	16	74	10
Indonesia	98	11	24	16	74	10
India	92	10	15	10	77	10
Philippines	88	10	16	10	72	9
Vietnam	76	8	10	6	66	9
Cambodia	51	6	7	5	44	6
China	34	4	5	3	29	4
Myanmar	30	3	7	5	23	3
Malaysia	24	3	7	5	17	2
Singapore	19	2	6	4	13	2
Visited a travel clinic before traveling
Yes	138	15	13	8	125	16
No	781	85	141	92	640	84
Antimicrobial prophylaxis
Yes	3	0.3	0	0	3	0.4
No	916	99	154	100	762	99
Outcome
Outpatient	815	89	115	75	700	92
Hospitalization	71	8	31	20	40	5
Unknown	33	4	8	5	25	3
Blood collection
Yes	486	53	102	66	384	50
No	433	47	52	34	381	50
Prescribed antimicrobials
Yes	129	14	57	37	72	9
No	790	86	97	63	693	91