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Table 4 Comparison of duration of illness with blood smear results for malaria parasites

From: Prospective study on severe malaria among in-patients at Bombo regional hospital, Tanga, north-eastern Tanzania

Variable Age group
Duration of illness (days) with BS positive Infants 1-4 years 5-9 years 10-19 years 20+ years Total
  (%) (%) (%) (%) (%)  
≤ 7 days 53 (20.6) 109 (42.4) 24 (9.3) 35 (13.6) 36 (14.0) 257
8-14 days 5 (25.0) 8 (40.0) 3 (15.0) 1 (5.0) 3 (15.0) 20
15+ days 0 4 (50.0) 0 3 (37.5) 1 (12.5) 8
Median duration (days) of illness [IQ range] 4[36] 4 [3, 6] 6 [3, 6] 4 [36] 4 [36]  
Duration of illness (days) with BS negative Infants 1-4 years 5-9 years 10-19 years 20+ years Total
  (%) (%) (%) (%) (%)  
≤ 7 days 39 (25.2) 42 (27.1) 7 (4.5) 25 (16.1) 42 (27.1) 155
8-14 days 5 (22.7) 5 (22.7) 2 (9.1) 1 (4.6) 9 (40.9) 22
15+ days 1 (3.0) 2 (6.3) 0 2 (6.3) 27 (84.4) 33
Median duration (days) of illness [IQ range] 4[3- 7.0] 4 [37] 5 [57] 4.5 [37] 7 [433]