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. 2020 Sep 24:euaa216. doi: 10.1093/europace/euaa216

Table 2.

QT risk score characteristics, as assessed by the Tisdale risk score from Tisdale et al.11

Overall (n = 649) HM (n = 126) MW (n = 495) ICU (n = 28)
Tisdale score (points), median (IQR) 6 (4–8) 4 (4–5) 7 (5–8) 8 (6–9)

  • Tisdale score risk class:

  • Low risk, n (%)

  • Moderate risk, n (%)

  • High risk, n (%)

  • 359 (55.3)

  • 250 (38.5)

  • 40 (6.2)

  • 111 (88.1)

  • 15 (11.9)

  • 0

  • 237 (47.9)

  • 223 (45.0)

  • 35 (7.1)

  • 11 (39.2)

  • 12 (48.9)

  • 5 (17.9)

  • Categories:

  • Age >68 years, n (%)

  • Female, n (%)

  • Loop diuretics, n (%)

  • Diabetes, n (%)

  • Potassium ≤3.5 meq/L, n (%)

  • Admission QTc >450 ms, n (%)

  • Acute MI, n (%)

  • One QT-prolonging drug, n (%)

  • ≥2 QT-prolonging drugs, n (%)

  • Heart failure, n (%)

  • Sepsis, n (%)

  • 266 (41.0)

  • 350 (53.9)

  • 80 (12.3)

  • 73 (11.3)

  • 81 (12.5)

  • 188 (29.0)

  • 13 (2.0)

  • 361 (55.6)

  • 288 (44.4)

  • 25 (3.8)

  • 7 (1.1)

  • 34 (27.0)

  • 78 (61.9)

  • 4 (3.2)

  • 6 (4.8)

  • 5 (4.0)

  • 24 (19.1)

  • 0

  • 119 (94.4)

  • 7 (5.6)

  • 1 (0.8)

  • 0

  • 221 (44.7)

  • 264 (53.3)

  • 66 (13.3)

  • 58 (11.8)

  • 73 (14.8)

  • 154 (31.1)

  • 9 (1.8)

  • 232 (46.9)

  • 263 (53.1)

  • 21 (4.2)

  • 2 (0.4)

  • 11 (39.3)

  • 8 (28.6)

  • 10 (35.7)

  • 9 (32.1)

  • 3 (10.7)

  • 10 (35.7)

  • 4 (14.3)

  • 10 (35.7)

  • 18 (64.3)

  • 3 (10.7)

  • 5 (17.9)

HM, home management patient; ICU, intensive care unit patient; MI, myocardial infarction; MW, medical ward patient.