Table 2 Comparison of adult participants with positive versus negative Trypanosoma cruzi serology according to sociodemographic and epidemiological variables
| Â | T. cruzi positive | T. cruzi negative | P value |
|---|---|---|---|
Demographic data | |||
 Sex, male, n/N (%) | 27/54 (50.0) | 169/442 (38.2) | 0.09 |
 Age (years), median (IQR) | 44 (39–51) | 41 (34–49) | 0.038 |
 Time in Spain (years), median (IQR) | 12.5 (11–15) | 14 (11–16) | 0.097 |
Education, n/N (%) | |||
 Primary school | 22/53 (41.5) | 106/420 (25.2) | 0.012 |
 Secondary school | 26,753 (49.1) | 239/420 (56.9) | 0.28 |
 University studies | 5/53 (9.4) | 75/420 (17.9) | 0.12 |
Country of birth, n/N (%) | |||
 Bolivia | 53/54 (98.1) | 149/442 (37.7) |  < 0.001 |
 Ecuador | 0/54 (0) | 187/442 (42.2) |  < 0.001 |
 Colombia | 0/54 (0) | 65/442 (14.7) | 0.003 |
 Argentina | 1/54 (1.9) | 12/442 (2.7) | 0.70 |
 Brazil | 0/54 (0) | 7/442 (1.6) | 0.32 |
 Paraguay | 0/54 (0) | 6 /442(1.4) | 0.38 |
 Peru | 0/54 (0) | 4/442 (0.9) | 0.99 |
 Venezuela | 0/54 (0) | 4/442 (0.9) | 0.99 |
 Otherª | 0/54 (0) | 8 (1.6) |  |
Epidemiological data, n/N (%) | |||
 Living in rural area | 16/20 (80.0) | 135/181 (74.6) | 0.32 |
 Triatomines seen at home | 18/20 (90.0) | 90/180 (50.0) | 0.001 |
 Blood transfusion recipient | 2/19 (10.5) | 26/180 (14.4) | 0.64 |
 Relatives with Chagas disease | 9/21 (42.9) | 29/182 (15.9) | 0.003 |
 Having heard about Chagas disease | 20/21 (95.2) | 92/182 (50.5) |  < 0.001 |
 Positive Strongyloides stercoralis serology | 14/54 (25.9) | 46/442 (10.4) | 0.001 |
 Previously underwent Chagas disease serology | 18/53 (34.0) | 40/476 (8.4) |  < 0.001 |