Skip to main content

Table 4 Diagnosis of S. mekongi infection using serum and urine samples (n = 377)

From: Comparison of novel and standard diagnostic tools for the detection of Schistosoma mekongi infection in Lao People’s Democratic Republic and Cambodia

Type of sample/method Overall (%) Cambodia (%) Lao PDR (%) χ2 P-value
Urine
 POC-CCA
  Negative 174 (46.2) 97 (49.5) 77 (42.5)   
  Trace 124 (32.9) 63 (32.1) 61 (33.7)   
  Positive 79 (21.0) 36 (18.4) 43 (23.8) 2.4 0.308
 UCAA
  Negative 206 (54.6) 110 (56.1) 96 (53.0)   
  Indecisive range 25 (6.6) 17 (8.7) 8 (4.4)   
  Positive 146 (38.7) 69 (35.2) 77 (42.5) 4.0 0.133
Serum
 SCAA
  Negative 240 (63.7) 133 (67.9) 107 (59.1)   
  Indecisive range 15 (4.0) 12 (6.1) 3 (1.7)   
  Positive 122 (32.4) 51 (26.0) 71 (39.2) 10.9 0.004
ELISA combineda
 Negative 115 (30.5) 76 (38.8) 39 (21.6)   
 Equivocal 132 (35.0) 68 (34.7) 64 (35.4)   
 Positive 130 (34.5) 52 (26.5) 78 (43.1) 16.7 <0.001
Combined Referenceb
 Negative 203 (53.8) 121 (61.7) 82 (45.3)   
 Positive 174 (46.2) 75 (38.3) 99 (54.7) 10.2 0.001
  1. AWE, adult worm antigen; SEA, soluble egg antigen; aeither AWE or SEA positive; bat least one of the three tests (UCAA, SCAA, Kato-Katz) positive