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Table 1 Subjects baseline characteristics

From: The Selvester QRS score as an estimative of myocardial injury in acute chagasic patients from the Brazilian Amazon

Variable Total Control group ACD Cases group p-value
(n = 62) (n = 31) (n = 31) Before Treatment After Treatment
Male 32 (52%) 16 (52%) 16 (52%)    1.000†
Female 30 (48%) 15 (48%) 15 (48%)    
Age (y) 40 ± 17 43 ± 16 38 ± 19    0.454**
QRS scoring 1.2 ± 1.9 0,06 ± 0.36   1.1 ± 1.5‡‡ 2.6 ± 2.2‡‡ < 0.001‡
Predicted LV infarct (%) 3.7 ± 5.5 0.2 ± 1.1   3.3 ± 4.5‡‡ 7.7 ± 6.6‡‡ < 0.001‡
LVEF (%) 73 ± 6.3 75 ± 4.6 73 ± 7.3    0.092‡
NYHA I 61 (98.4%) 31 (100%)   30 (97%) 31 (100%)  
NYHA III 1 (1.6%)    1 (3%)   
  1. LV left ventricular, LVEF left ventricular ejection fraction, NYHA-FC New York Heart Association Functional Classification. Data are expressed as mean ± SD. In parenthesis is the percentage of the total group. **One-way analysis of variance by ranks-Kruskal-Wallis test. † Pearson’s chi-squared. ‡ One-way analysis of variance (ANOVA). ‡‡ p < 0.05 Tukey test for comparisons with control group