Translation and Validation of the Arrhythmia-Specific Questionnaire in Tachycardia and Arrhythmia (ASTA) to the Brazilian Context: An Instrument Focusing on Arrhythmia Symptoms
Table 2
Data quality and item-total correlations for the ASTA-Br-symptom scale.
Items
Symptom scale
Response alternatives
Symptoms
Item-total correlation
Cronbach if item was deleted
Mean (SD)
No, n (%)
Yes, to a certain extent n (%)
Yes, quite a lot n (%)
Yes, a lot n (%)
Breathlessness during activity
0.42
0.78
1.54 (1.14)
39 (27.86)
21 (15.00)
46 (32.86)
34 (24.29)
Breathlessness even at rest
0.51
0.77
0.99 (1.10)
64 (45.71)
33 (24.57)
23 (16.43)
20 (14.29)
Dizziness
0.45
0.78
0.96 (1.04)
63 (45.00)
34 (24.29)
28 (20.00)
15 (10.71)
Cold sweat
0.41
0.78
0.91 (1.17)
76 (54.29)
25 (17.86)
14 (10.00)
25 (17.86)
Weakness/fatigue
0.61
0.75
1.12 (1.18)
62 (44.29)
27 (19.29)
23 (16.43)
28 (20.00)
Tiredness
0.58
0.76
1.44 (1.21)
46 (32.86)
25 (17.86)
30 (21.43)
39 (27.86)
Chest pain
0.55
0.76
0.93 (1.20)
78 (55.71)
21 (15.00)
14 (10.00)
27 (19.29)
Pressure/discomfort in the chest
0.56
0.76
1.07 (1.15)
62 (44.29)
31 (22.14)
22 (15.71)
25 (17.86)
Worry/anxiety
0.24
0.80
1.48 (1.35)
58 (41.43)
9 (6.43)
21 (15.00)
52 (37.14)
—Total cronbach
0.79
10.45 (6.44)
ASTA-Br-symptom scale: Arrhythmia-Specific Questionnaire in the Tachycardia and Arrhythmia ASTA-Brazilian-Symptom scale.
