Table 1

Baseline characteristics in control and Chagas' disease groups.

Variables

Group 1 N = 16

Group 2 n = 18

Group 3 n = 19

Control n = 31

P value

Age (years)

49.7 ± 5.9

47.4 ± 9.3

49 ± 10

45.3 ± 8.9

0.33

Male sex

6 (37.5 %)

6 (33.3 %)

8 (42 %)

15 (48.4 %)

0.30

Systolic blood pressure (mm Hg)

120.5 ± 6.8

118.9 ± 11.3

116.6 ± 11.3

118.1 ± 10.3

0.72

Diastolic blood pressure (mm Hg)

79.8 ± 2.9

80 ± 5

77.6 ± 5.8

76.7 ± 7

0.29

Heart rate (bpm)

74.6 ± 5.7

67.7 ± 7.6

74 ± 12

71.8 ± 10

0.13

Body mass index (Kg/m²)

25.8 ± 4.3

24.4 ± 3.3

23.4 ± 4.5

25.4 ± 3.7

0.26

Total cholesterol (mmol/L)

208 ± 20.8

197 ± 21

190 ± 34

196.3 ± 17.8

0.28

HDL (mmol/L)

46.4 ± 8.4

48.4 ± 9.8

46.8 ± 15.4

50.3 ± 9.8

0.75

LDL (mmol/L)

139 ± 20.3

130.4 ± 15.4

131.7 ± 27.6

130.8 ± 16

0.68

Triglycerides (mmol/L)

131.4 ± 59.6

117.1 ± 49.8

128 ± 4

128.5 ± 49.2

0.89

Hematocrit

41.2 ± 4

42 ± 3

40 ± 3

39.8 ± 2.9

0.20

Hemoglobin (g/dl)

14.4 ± 1.2

14.5 ± 0.7

14 ± 1.2

14 ± 0.8

0.37

Serum glucose (g/dL)

98 ± 9.5

93.3 ± 6.4

101 ± 12.7

93.4 ± 9.3

0.12

Serum sodium (mEq/L)

140 ± 1.6

139.7 ± 1.6

139.3 ± 2.6

139.7 ± 2

0.75

Blood urea nitrogen (mg/dL)

32.8 ± 5.3

33.8 ± 5

38.8 ± 13.6

32.7 ± 4.6

0.20

Serum creatinine (mg/dL)

0.95 ± 0.1

0.97 ± 0.2

1.05 ± 0.2

0.96 ± 0.1

0.25

End diastolic diameter (cm)

4.7 ± 0.43

4.87 ± 0.44

6.36 ± 1.09

_

< 0.00001

End systolic diameter (cm)

3.18 ± 0.39

3.18 ± 0.4

5.11 ± 1.2

_

< 0.00001

Ejection fraction

69.6 ± 5.2

70.3 ± 6.3

48.7 ± 11

_

< 0.00001

Fractional shortening

33 ± 3.9

33.7 ± 5

20.9 ± 6.7

_

< 0.00001

VO₂ (ml/Kg/min)

20 ± 4.3

21.7 ± 7.3

14.9 ± 2.1

_

0.003

VO₂ = peak oxygen consumption.

Villacorta et al. Journal of Negative Results in BioMedicine 2006 5:9   doi:10.1186/1477-5751-5-9