Table 1 Chagas disease (CD) knowledge pretest, posttest with difference means / standard deviations by survey question

Describe your level of CD Knowledge

1 (I don’t know anything); 2 (Very limited); 3 (Limited); 4 (Good); 5 (Excellent)

3.13

3.95

0.82

0.95

0.82

0.79

0.61

1.03

How confident are you with your CD Knowledge is current?

1 (Don’t know); 2 (Not at all confident); 3 (Somewhat confident); 4 (Confident); 5 (Very confident)

2.84

3.96

1.13

1.01

0.93

1.08

0.84

1.41

CD is present in Texas? (True or False)

0.96

0.96

0.00

0.19

0.19

0.30

−0.08

0.08

Cause of CD

0.84

0.91

0.07

0.37

0.29

0.26

0.00

0.14

Transmission of CD

0.30

0.59

0.29

0.46

0.50

0.49

0.16

0.42

What part of the world is CD transmitted?

0.73

0.91

0.18

0.45

0.29

0.39

0.08

0.28

What % of patients develop clinical disease?

0.39

0.70

0.30

0.49

0.46

0.54

0.16

0.44

CD Symptoms

0.80

0.88

0.07

0.40

0.33

0.37

−0.03

0.17

CD Clinical Manifestations

0.73

0.89

0.16

0.45

0.31

0.42

0.05

0.27

Methods to diagnose CD

0.41

0.86

0.45

0.50

0.35

0.54

0.31

0.59

CD Treatment

0.52

0.77

0.25

0.50

0.43

0.44

0.14

0.36

EKG Typical of CD

0.38

0.48

0.11

0.49

0.50

0.56

−0.04

0.25