pdur qrsaxis
Name
printerval
Label
PR interval
Description

Duration from the beginning of the P-wave to the beginning of the QRS complex

Units
milliseconds
Type
numeric
Visit number vs PR interval
N Mean StdDev Median Min Max Unknown Total
Baseline 302 174.4 ± 29.5 172.0 78.0 304.0 16 318
Follow-up 279 176.0 ± 35.6 174.0 80.0 486.0 22 301
Treatment Arm vs PR interval
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 302 174.4 ± 29.5 172.0 78.0 304.0 16 318
Healthy Lifestyles and Sleep Education - control arm (HLSE) 101 175.6 ± 32.8 172.0 78.0 304.0 5 106
Healthy Lifestyles and Sleep Education + (supplemental nocturnal) Oxygen - oxygen arm (HLSE-O) 103 175.7 ± 29.8 174.0 80.0 252.0 3 106
Healthy Lifestyles and Sleep Education + Positive airway pressure treatment - CPAP arm (HLSE-P) 98 171.8 ± 25.4 168.0 120.0 272.0 8 106
Treatment Arm vs PR interval
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 279 176.0 ± 35.6 174.0 80.0 486.0 22 301
Healthy Lifestyles and Sleep Education - control arm (HLSE) 94 177.5 ± 45.7 170.0 116.0 486.0 6 100
Healthy Lifestyles and Sleep Education + (supplemental nocturnal) Oxygen - oxygen arm (HLSE-O) 95 174.0 ± 28.1 176.0 80.0 256.0 6 101
Healthy Lifestyles and Sleep Education + Positive airway pressure treatment - CPAP arm (HLSE-P) 90 176.5 ± 30.7 174.0 116.0 272.0 10 100
Age category vs PR interval
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 302 174.4 ± 29.5 172.0 78.0 304.0 16 318
45-54 years 52 163.7 ± 18.7 166.0 128.0 208.0 1 53
55-64 years 133 174.1 ± 27.4 172.0 78.0 272.0 6 139
65 years or older 117 179.5 ± 34.2 174.0 80.0 304.0 9 126
Age category vs PR interval
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 279 176.0 ± 35.6 174.0 80.0 486.0 21 300
45-54 years 48 169.8 ± 51.4 166.0 116.0 486.0 1 49
55-64 years 119 175.3 ± 26.9 174.0 122.0 272.0 8 127
65 years or older 112 179.4 ± 35.6 176.0 80.0 296.0 12 124
Gender of the participant vs PR interval
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 302 174.4 ± 29.5 172.0 78.0 304.0 16 318
Female 80 168.4 ± 24.5 170.0 106.0 238.0 4 84
Male 222 176.6 ± 30.8 175.0 78.0 304.0 12 234
Gender of the participant vs PR interval
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 279 176.0 ± 35.6 174.0 80.0 486.0 22 301
Female 73 168.6 ± 25.2 168.0 116.0 256.0 6 79
Male 206 178.6 ± 38.4 175.0 80.0 486.0 16 222
Race of the participant vs PR interval
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 301 174.4 ± 29.5 172.0 78.0 304.0 16 317
White 241 174.5 ± 30.7 172.0 78.0 304.0 15 256
American Indian or Alaskan Native 2 183.0 ± 7.1 183.0 178.0 188.0 - 2
Black or African American 42 174.8 ± 26.8 173.0 106.0 238.0 1 43
Asian 6 167.0 ± 16.0 163.0 152.0 194.0 - 6
Native Hawaiian or other Pacific islander 1 192.0 - 192.0 192.0 192.0 - 1
Other 4 167.0 ± 20.0 170.0 142.0 186.0 - 4
Multiple 5 174.0 ± 18.3 170.0 152.0 202.0 - 5
Race of the participant vs PR interval
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 278 176.0 ± 35.7 174.0 80.0 486.0 21 299
White 224 176.8 ± 37.5 174.0 80.0 486.0 17 241
American Indian or Alaskan Native 2 181.0 ± 7.1 181.0 176.0 186.0 - 2
Black or African American 37 173.5 ± 30.2 172.0 118.0 256.0 4 41
Asian 6 167.0 ± 22.2 159.0 144.0 204.0 - 6
Native Hawaiian or other Pacific islander 1 192.0 - 192.0 192.0 192.0 - 1
Other 3 160.7 ± 14.5 168.0 144.0 170.0 - 3
Multiple 5 171.2 ± 22.8 166.0 150.0 208.0 - 5