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Table 1 Number and cumulative frequencies of anti-TH and anti-TO levels overall and by blood culture isolates

From: Evaluation of the Widal tube agglutination test for the diagnosis of typhoid fever among children admitted to a rural hdospital in Tanzania and a comparison with previous studies

Highest titer reached; Number (%) All (n = 1,680) Children with culture-confirmed typhoid fever (n = 16) Children with non-Typhi serotypes of S. enterica(n = 49) Children with other pathogenic bacteria (n = 113) Children with no pathogenic bacteria isolated (n = 1,502)
Median age (Range)* 1.83
(14.81)
7.21
(11.96)
1.58
(6.73)
1.43
(11.83)
1.84
(14.81)
Anti-TH      
≥1:640 15 (0.9) 3 (18.8) 5 (10.2) 0 (0) 7 (0.5)
1:320 24 (1.4) 6 (37.5) 6 (12.2) 0 (0) 12 (0.8)
1:160 36 (2.1) 11 (68.8) 7 (14.3) 0 (0) 18 (1.2)
1:80 46 (2.7) 12 (75.0) 7 (14.3) 1 (0.9) 26 (1.7)
1:40 85 (5.1) 12 (75.0) 9 (18.4) 3 (2.7) 61 (4.1)
No agglutination 1,595 (94.9) 4 (25.0) 40 (81.6) 110 (97.3) 1,441 (95.9)
Anti-TO      
≥1:640 6 (0.4) 3 (18.8) 2 (4.1) 0 (0) 1 (0.1)
1:320 18 (1.1) 6 (37.5) 3 (6.1) 0 (0) 9 (0.6)
1:160 34 (2.0) 10 (62.5) 6 (12.2) 0 (0) 18 (1.2)
1:80 44 (2.6) 11 (68.8) 7 (14.3) 0 (0) 26 (1.7)
1:40 95 (5.7) 12 (75.0) 10 (20.4) 3 (2.7) 70 (4.7)
No agglutination 1,585 (94.3) 4 (25.0) 39 (79.6) 110 (97.3) 1,432 (95.3)
  1. *P values: Group 1 vs 4 < 0.001; Group 2 vs 4 = 0.209; Group 3 vs 4 = 0.013