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Table 2 Travel-related characteristics of 600 Dutch long-term travellers at risk for CHIKV infection

From: No chikungunya virus infections among Dutch long-term travellers to (sub)tropical countries: a prospective study 2008–2011

Characteristic Total, no. %
No. participants 600 100
Median duration of travel, weeks (IQR) 20 (15–25)  
 Duration of travel, weeks   
  < 16 167 28
 16–20 156 26
 21–25 146 24
  ≥ 26 131 22
Purpose of travel
 Tourism 371 62
 Work/education 173 29
 VFR^/other 56 9
Visited continents
 Asia 269 45
 Africa 107 18
 Latin America 224 37
Use of DEET*, % of total travel duration
  < 25 175 29
 25–50 134 22
 51–75 102 17
  ≥ 75 189 32
  1. The participants attended and were recruited at a Dutch travel health clinic between December 2008–September 2011
  2. IQR interquartile range, ^VFR visiting friends & relatives, *DEET N,N-diethyl-meta-toluamide