TABLE 2.

Comparison of fecal PCR with culture and isoenzyme analysisa

Specimen group (n)No. (%) of specimens with result(s)
E. histolyticaE. dispar
Culture positivePCR positiveCulture and PCR positiveCulture positivePCR positiveCulture and PCR positive
All samples (181)13 (7.2)33 (18.2)*12 (6.6)12 (6.6)12 (6.6)10 (5.5)
ALA patients (81)11 (13.6)24 (29.6)**10 (12.3)2 (2.5)2 (2.5)2 (2.5)
Controls (100)2 (2.0)9 (9.0)2 (2.0)10 (10.0)10 (10.0)8 (8.0)
  • a Symbols for significant difference compared to culture: *, P < 0.001; **, P < 0.03.