cent_obs_ratio cntdur
Name
cent_obs_ratioa
Label
Ratio of the number of central apneas with no oxygen desaturation threshold used or with arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography
Calculation
cent_obs_ratioa = (carba + caroa + canba + canoa) / (oarba + oaroa + oanba + oanoa)
Type
numeric
Tags
ratnumap_ca0r_oa0r_f1t2
Visit number vs Ratio of the number of central apneas with no oxygen desaturation threshold used or with arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 8 289 0.09 ± 0.4 0.0 0.0 3.5 172 461
Age (categorical) vs Ratio of the number of central apneas with no oxygen desaturation threshold used or with arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 286 0.1 ± 0.4 0.0 0.0 3.5 169 455
75-84 years 208 0.08 ± 0.3 0.0 0.0 3.0 117 325
85 years or older 78 0.1 ± 0.5 0.0 0.0 3.5 52 130
Gender vs Ratio of the number of central apneas with no oxygen desaturation threshold used or with arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 289 0.09 ± 0.4 0.0 0.0 3.5 172 461
Female 289 0.09 ± 0.4 0.0 0.0 3.5 172 461