Table 1.

Characteristics of survey respondents, by income classification of destination country^*

	LLMI countries	UMHI countries	p Value ‡
Number of respondents	476 (38%)	778 (62%)
Age of primary respondent (years; median, range)	43 (10–89)	46 (12–96)	0.01
Gender (male)	219 (46%)	331 (43%)	0.22
Foreign-born	176 (38%)	146 (19%)	<0.0001
Traveling with family	180 (38%)	404 (52%)	<0.0001
Duration of travel (days)
1–7	132 (28%)	354 (46%)	<0.0001
8–14	162 (34%)	322 (41%)
15–28	120 (25%)	60 (8%)
>28	61 (13%)	41 (5%)
Purpose of trip†
Vacation	251 (53%)	586 (75%)	<0.0001
Visiting family	134 (28%)	124 (16%)	<0.0001
VFR	98 (21%)	N/A	—
Business	63 (13%)	87 (11%)	0.29
Volunteer work	62 (13%)	4 (0.5%)	<0.0001
Education/cultural exchange	37 (8%)	71 (9%)	0.40
Adventuring	22 (5%)	40 (5%)	0.68
Attending large event	10 (2%)	13 (2%)	0.59
Providing medical care	17 (4%)	2 (0.3%)	—
Pursued any health information prior to travel	259 (54%)	195 (25%)	<0.0001

LLMI = low or low-middle income; UMHI = upper-middle or high income; VFR visiting friends and relatives.

^*The denominator for each category is the number of respondents who answered the given question. Missing data are not represented in the table.

^†Survey respondents could select more than one purpose of the trip.

^‡Based on two-sided t-tests (continuous variable) or chi-square tests (categorical variable).