Name

qtcdur

Label

QTc duration

Description

Duration of the corrected Q-T interval

Units
milliseconds
Type
numeric
Visit number vs QTc duration
N Mean StdDev Median Min Max Unknown Total
Baseline 317 426.5 ± 26.7 421.0 356.0 527.0 1 318
Follow-up 294 428.5 ± 30.0 420.5 370.0 591.0 7 301
Treatment Arm vs QTc duration
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 317 426.5 ± 26.7 421.0 356.0 527.0 1 318
Healthy Lifestyles and Sleep Education - control arm (HLSE) 105 425.0 ± 24.8 419.0 356.0 527.0 1 106
Healthy Lifestyles and Sleep Education + (supplemental nocturnal) Oxygen - oxygen arm (HLSE-O) 106 427.3 ± 29.0 422.0 375.0 522.0 - 106
Healthy Lifestyles and Sleep Education + Positive airway pressure treatment - CPAP arm (HLSE-P) 106 427.3 ± 26.4 421.5 381.0 522.0 - 106
Treatment Arm vs QTc duration
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 294 428.5 ± 30.0 420.5 370.0 591.0 7 301
Healthy Lifestyles and Sleep Education - control arm (HLSE) 99 424.8 ± 24.3 420.0 370.0 514.0 1 100
Healthy Lifestyles and Sleep Education + (supplemental nocturnal) Oxygen - oxygen arm (HLSE-O) 99 430.1 ± 33.2 420.0 381.0 572.0 2 101
Healthy Lifestyles and Sleep Education + Positive airway pressure treatment - CPAP arm (HLSE-P) 96 430.8 ± 31.7 426.0 378.0 591.0 4 100
Age category vs QTc duration
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 317 426.5 ± 26.7 421.0 356.0 527.0 1 318
45-54 years 53 427.9 ± 28.7 422.0 386.0 527.0 - 53
55-64 years 139 425.8 ± 26.7 420.0 375.0 522.0 - 139
65 years or older 125 426.8 ± 26.1 420.0 356.0 508.0 1 126
Age category vs QTc duration
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 294 428.5 ± 30.0 420.5 370.0 591.0 6 300
45-54 years 48 428.7 ± 27.9 424.0 386.0 528.0 1 49
55-64 years 124 429.0 ± 32.5 420.0 380.0 591.0 3 127
65 years or older 122 428.0 ± 28.3 421.5 370.0 532.0 2 124
Gender vs QTc duration
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 317 426.5 ± 26.7 421.0 356.0 527.0 1 318
Female 84 436.3 ± 26.9 430.0 376.0 527.0 - 84
Male 233 423.0 ± 25.8 418.0 356.0 522.0 1 234
Gender vs QTc duration
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 294 428.5 ± 30.0 420.5 370.0 591.0 7 301
Female 77 437.5 ± 32.8 429.0 381.0 591.0 2 79
Male 217 425.4 ± 28.3 420.0 370.0 572.0 5 222
Race vs QTc duration
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 312 426.7 ± 26.9 421.0 356.0 527.0 1 313
White 251 425.9 ± 26.2 420.0 356.0 527.0 1 252
Black 42 434.3 ± 30.5 427.0 390.0 522.0 - 42
Other 19 419.8 ± 24.7 416.0 376.0 473.0 - 19
Race vs QTc duration
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 290 428.6 ± 30.2 420.5 370.0 591.0 6 296
White 233 427.3 ± 28.9 420.0 370.0 572.0 4 237
Black 38 438.1 ± 39.0 429.5 398.0 591.0 2 40
Other 19 425.5 ± 21.8 422.0 381.0 463.0 - 19