Volume 9, Number 12—December 2003
Research
Trypanosoma cruzi in Persons without Serologic Evidence of Disease, Argentina
Oscar A. Salomone*
, Ana L. Basquiera*, Adela Sembaj†, Ana M. Aguerri†, María E. Reyes‡, Mirtha Omelianuk*, Ruth A. Fernández†, Julio Enders†, Atilio Palma†, José Moreno Barral†, and Roberto J. Madoery*
, Ana L. Basquiera*, Adela Sembaj†, Ana M. Aguerri†, María E. Reyes‡, Mirtha Omelianuk*, Ruth A. Fernández†, Julio Enders†, Atilio Palma†, José Moreno Barral†, and Roberto J. Madoery*Table 1
Demographic and laboratory characteristics of study participantsa
| Variable | Total (n = 194) | Urban population (n = 110) | Rural population (n = 84) |
|---|---|---|---|
| Age, mean ± SD (y) |
52 ±14 |
56 ±14 |
48 ±15 |
| Male (%) |
36 |
37 |
33 |
| Negative serologic finding, n (%) |
80 (41) |
34 (31) |
46 (54) |
| Positive PCR assay, n (%) |
34 (17) |
14 (13) |
20 (24) |
| Positive PCR assay and negative serologic findings, n (%) | 12 (6) | 3 (9) | 9 (20) |
aPCR, polymerase chain reaction.
