rdi2pa rdi5p
Name
rdi4pa
Label
Apnea-Hypopnea Index: Apneas with >=4% oxygen desaturation or with arousal+ hypopneas with > 30% flow reduction and >=4% oxygen desaturation or with arousal / hour of sleep from type II polysomnography
Description

Calculated - Summary metric of sleep disordered breathing events

Calculation
rdi4pa = 60 * ( hremba4 + hroa4 + hnrba4 + hnroa4 + carba4 + caroa4 + canba4 + canoa4 + oarba4 + oaroa4 + oanba4 + oanoa4 ) / slpprdp
Units
events per hour
Type
numeric
Tags
ahi_ap4rhp3x4r_f1t2
Visit number vs Apnea-Hypopnea Index: Apneas with >=4% oxygen desaturation or with arousal+ hypopneas with > 30% flow reduction and >=4% oxygen desaturation or with arousal / hour of sleep from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 8 456 13.7 ± 13.5 9.7 0.0 82.5 5 461
Age (categorical) vs Apnea-Hypopnea Index: Apneas with >=4% oxygen desaturation or with arousal+ hypopneas with > 30% flow reduction and >=4% oxygen desaturation or with arousal / hour of sleep from type II polysomnography
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 450 13.5 ± 13.1 9.7 0.1 82.5 5 455
75-84 years 321 12.6 ± 12.2 8.9 0.1 82.5 4 325
85 years or older 129 15.9 ± 15.0 11.4 0.2 77.1 1 130
Gender vs Apnea-Hypopnea Index: Apneas with >=4% oxygen desaturation or with arousal+ hypopneas with > 30% flow reduction and >=4% oxygen desaturation or with arousal / hour of sleep from type II polysomnography
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 456 13.7 ± 13.5 9.7 0.0 82.5 5 461
Female 456 13.7 ± 13.5 9.7 0.0 82.5 5 461