Table 2. Baseline Characteristics of Patients with ECG bON and bOFF Methadone.
Characteristic N = 211 | ECG on Methadone | ECG off Methadone | P |
---|---|---|---|
Age at time of ECG, years (SD) | 47.6 (9.7) | 46.5 (10.0) | NS |
Male (%) | 57.4 | 57.4 | -- |
Race (%) | -- | ||
Caucasian | 46.5 | -- | |
African American | 37.4 | -- | |
Asian | 5.2 | -- | |
Other | 10.9 | -- | |
ECG Setting (%) | NS | ||
Emergency department | 64.0 | 66.4 | |
Inpatient | 22.3 | 24.2 | |
Outpatient | 13.7 | 9.5 | |
QTc, msec (SD) | 440 (35) | 429 (34) | <0.001 |
QTc ≥ 500 msec (%) | 10 (4.8) | 4 (1.9) | NS |
Dose, mg (range) (SD)* | 74.5 (15-140) (26.5) | -- | -- |
Dose data missing in 15 patients