EKG and echocardiogram findings among patients with and without Trypanosoma cruzi infection.

aUnadjusted results based on exact Pearson chi-square tests.bAdjusted results based on logistic regression, adjusted for sex and age as a quadratic function. See text for explanation of age adjustment.cEKG analyses include a total of 237 seropositive and 137 seronegative participants. 14 seropositive and 5 seronegative participants were excluded from the EKG analyses because they had implanted pacemakers.dDenominator for ‘any ventricular arrhythmia’ includes 14 seropositive and 5 seronegative participants with pacemakers excluded from the other EKG analyses.eEchochardiogram analyses include 229 seropositive and 127 seronegative participants.fDefined as end diastolic diameter >57 mm.gDefined as left atrial end diastolic diameter >40 mm not explained by diastolic dysfunction or left ventricular hypertrophy.hData missing for one participant.