TABLE 1.

Comparison of fecal PCR with microscopy and serologya

Specimen group (n)No. (%) of specimens with result
Positive microscopy for E. histolytica and E. disparPositive serology for E. histolytica
All samples (491)45 (9.2)120 (24.4)
E. histolytica-positive PCR (46)29 (63.0)*38 (82.6)*
E. dispar-positive PCR (24)16 (66.7)*5 (20.8)**
E. histolytica- and E. dispar- negative PCR (421)0*77 (18.3)***
  • a Symbols for significant difference compared to all samples: *, P < 0.001; ***, P < 0.03; **, not significantly different(P = 0.63).