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Table 1 Demographic characteristics of study population.

From: Performance of self-diagnosis and standby treatment of malaria in international oilfield service employees in the field

Demographic characteristics N
(N total 2350)
%
Gender Male 2065 88
  Female 285 12
Age (yrs) mean (range) 36 (19–63) -
Continent of birth African 733 31
  European 631 27
  South American 328 14
  Asian 301 13
  North American 174 8
  Arabic 102 4
  Oceanian 64 3
Country of birth Malaria endemic$ 1392 60
  Malaria non endemic 941 40
Working conditions Outdoor* 1278 54
  Indoor 1072 46
Work status Long term (>6 months) 1122 48
  Rotator 795 34
  Visitor 342 15
  Other (e.g. spouse) 91 4
  1. Percentages may not add up to exactly one hundred due to rounding off. $ Malaria endemic country according to the WHO (5). *Outdoor working conditions include working on a land rig or with seismic crew, off shore, on another field location or on a marine vessel.