Name
aphypi
Label
Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
Description

Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)

Details about how the respiratory events were scored can be found in the Embletta scoring manual.

Please refer to ahi_screening from the baseline screening visit for a more standardized version of AHI in this study.

Units
events per hour
Type
numeric
Visit number vs Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
N Mean StdDev Median Min Max Unknown Total
Baseline 316 26.4 ± 8.9 24.3 7.3 65.0 2 318
Follow-up 275 17.3 ± 12.7 14.3 0.3 75.7 26 301
Treatment Arm vs Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 316 26.4 ± 8.9 24.3 7.3 65.0 2 318
Healthy Lifestyles and Sleep Education - control arm (HLSE) 106 26.5 ± 8.8 24.7 13.8 49.6 - 106
Healthy Lifestyles and Sleep Education + (supplemental nocturnal) Oxygen - oxygen arm (HLSE-O) 105 25.4 ± 8.6 23.4 7.3 55.2 1 106
Healthy Lifestyles and Sleep Education + Positive airway pressure treatment - CPAP arm (HLSE-P) 105 27.1 ± 9.2 24.7 14.3 65.0 1 106
Treatment Arm vs Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 275 17.3 ± 12.7 14.3 0.3 75.7 26 301
Healthy Lifestyles and Sleep Education - control arm (HLSE) 94 25.6 ± 13.1 23.9 1.1 75.7 6 100
Healthy Lifestyles and Sleep Education + (supplemental nocturnal) Oxygen - oxygen arm (HLSE-O) 95 14.1 ± 10.0 10.5 0.3 48.9 6 101
Healthy Lifestyles and Sleep Education + Positive airway pressure treatment - CPAP arm (HLSE-P) 86 11.7 ± 10.1 8.3 0.7 46.9 14 100
Age category vs Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 316 26.4 ± 8.9 24.3 7.3 65.0 2 318
45-54 years 52 23.5 ± 7.1 22.0 7.3 43.4 1 53
55-64 years 139 25.7 ± 8.8 23.5 12.3 65.0 - 139
65 years or older 125 28.3 ± 9.2 26.1 15.4 51.1 1 126
Age category vs Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 275 17.3 ± 12.7 14.3 0.3 75.7 25 300
45-54 years 42 16.0 ± 11.5 14.0 1.6 57.5 7 49
55-64 years 117 17.1 ± 12.9 13.9 0.7 75.7 10 127
65 years or older 116 18.0 ± 13.0 15.6 0.3 70.9 8 124
Gender of the participant vs Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 316 26.4 ± 8.9 24.3 7.3 65.0 2 318
Female 84 24.6 ± 8.4 21.7 7.3 47.8 - 84
Male 232 27.0 ± 9.0 24.9 13.8 65.0 2 234
Gender of the participant vs Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 275 17.3 ± 12.7 14.3 0.3 75.7 26 301
Female 73 14.6 ± 10.0 12.4 0.9 45.9 6 79
Male 202 18.2 ± 13.5 15.2 0.3 75.7 20 222
Race of the participant vs Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 315 26.4 ± 8.9 24.3 7.3 65.0 2 317
White 255 26.9 ± 8.9 25.0 7.3 65.0 1 256
American Indian or Alaskan Native 2 23.2 ± 6.2 23.2 18.8 27.5 - 2
Black or African American 42 24.0 ± 8.8 20.9 16.3 55.2 1 43
Asian 6 24.7 ± 8.2 23.8 15.7 39.8 - 6
Native Hawaiian or other Pacific islander 1 28.1 - 28.1 28.1 28.1 - 1
Other 4 27.1 ± 13.7 23.0 16.1 46.4 - 4
Multiple 5 19.7 ± 4.3 17.6 15.7 26.5 - 5
Race of the participant vs Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III home sleep apnea test
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 274 17.3 ± 12.7 14.4 0.3 75.7 25 299
White 222 18.1 ± 13.4 15.2 0.3 75.7 19 241
American Indian or Alaskan Native 2 6.2 ± 5.4 6.2 2.3 10.0 - 2
Black or African American 35 12.4 ± 6.7 11.0 2.7 29.2 6 41
Asian 6 21.3 ± 12.1 20.9 2.6 38.7 - 6
Native Hawaiian or other Pacific islander 1 19.1 - 19.1 19.1 19.1 - 1
Other 3 14.1 ± 15.5 5.4 4.9 32.0 - 3
Multiple 5 18.7 ± 10.0 14.8 8.0 32.1 - 5