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Table 1 Characteristics of patients included in the study (n = 351)

From: Prevalence of transfusion-transmitted Chagas disease among multitransfused patients in Brazil

Age (Mean ± SD)

36.0 ± 19.8

Sex distribution (%)

 

Male

199 (56.7%)

Female

152 (43.3%)

Diagnosis responsible for multiple transfusions – number of patients (%)

 

Haemophilia

28 (8.0%)

Haemoglobinopathies

97 (27.6%)

Onco-haematological disease

184 (52.4%)

Acute blood loss

19 (5.4%)

Haemodyalisis

23 (6.6%)

Units transfused per patient (Median/Range)

51 (10–2086)

Years exposed to transfusions (Median/Range)

3 (1–52)

1 st transfusion before 1997 (%)

230 (65.5%)

  1. SD- standard deviation. Table 1 presents characteristics of the exposure to multiple transfusions in the study population, such as diagnosis responsible for transfusions and the magnitude of exposure to blood products in their lifetime. This magnitude is expressed both in terms of the number of blood products (units) and calendar-years during which the patients received blood transfusions. In addition, the table also shows the proportion of patients transfused before 1997, the year when multiple initiatives aimed to control transfusion-transmitted CD were fully implemented in Brazil.