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Table 1 Demographic and epidemiological characteristics

From: Prospective comparative multi-centre study on imported Plasmodium ovale wallikeri and Plasmodium ovale curtisi infections

  Plasmodium ovale curtisi
(n=35)
Plasmodium ovale wallikeri
(n=44)
p
Sex    0.028
 Male 17 (48.6) 32 (72.7)  
 Female 18 (51.4) 12 (27.3)  
Age, median years (IQR) 35 (23.0–53.0) 38.5 (22.2–52.7) 0.529
Ethnicity    0.017
 African 26 (74.3) 21 (47.7)  
 Caucasian 9 (25.7) 23 (52.3)  
Type of patient    0.034
 Early immigrant 11 (31.4) 4 (9.0)  
 Visiting friends and relatives 14 (40.0) 17 (38.6)  
 VFR traveller 1 (2.9)   
 Tourism   3 (6.8)  
 Work/cooperation 7 (20.0) 17 (38.6)  
 Expatriate, long-term stay 2 (5.7) 3 (6.8)  
Country of infection    0.097
 Equatorial Guinea 14 (40.0) 11 (25.0)  
 Nigeria 5 (14.3) 6 (13.6)  
 Cameroon 1 (2.9) 11 (25.0)  
 Togo 1 (2.9) 1 (2.3)  
 Liberia 2 (5.7)   
 Tanzania   1 (2.3)  
 Guinea-Conakry 1 (2.9) 1 (2.3)  
 Ivory Coast 3 (8.6) 2 (4.5)  
 Mozambique 1 (2.9) 2 (4.5)  
 Congo 1 (2.9) 1 (2.3)  
 Congo Democratic Republic   1 (2.3)  
 Uganda 2 (5.7)   
 Chad   2 (4.5)  
 Ghana 1 (2.9) 1 (2.3)  
 Sierra Leone   1 (2.3)  
 Sudan 1 (2.9)   
 Burundi 1 (2.9)   
 Angola   1 (2.3)  
 Mali   1 (2.3)  
 Guinea-Bissau   1 (2.3)  
 Madagascar 1 (2.9)   
Duration of travel, median days (IQR) 101 (21.0–240.0) 38.5 (26.7–157.5) 0.547
Chemoprophylaxis    0.078
 No prophylaxis 14 (60.8) 24 (60.0)  
 Incomplete 5 (21.7) 2 (5.0)  
 Complete 4 (17.4) 14 (35.0)  
Time from arrival to onset of symptoms, median days (IQR) 34.0 (13.0–181.25) 30.5 (10.0–86.25) 0.171
Time from onset of symptoms to diagnoses, median days (IQR) 3 (0.0–10.0) 3.5 (0.7–8.0) 0.772
Recent Plasmodium infection 16 (51.6) 15 (40.5) 0.361
Other underlying conditions    1
 G6PDH deficit 1/30 (3.3) 2/37 (5.4)  
 Diabetes mellitus 1 (2.9) 4 (9.0) 0.3756
 Drepanocytosis 1 (2.9) 1 (2.3)  
 Pregnancy 1 (2.9) 0  
 Chronic kidney disease 0 1 (2.3)  
 Splenectomy 1 (2.9) 0  
 Hepatitis B virus 0 3 (6.8)  
 Hepatitis C virus 1 (2.9) 0  
 HIV 3 (8.6) 1 (2.3)  
  1. Values are no. (%) or no. positive/total no. (%) and median (interquartile range). Italicface indicates significance
  2. IQR interquartile range, VFR visiting friends and relatives, G6PDH glucose-6-phosphate dehydrogenase, HIV human immunodeficiency virus