oai4p rdi0pa
Name
oai4pa
Label
Obstructive Apnea Index 4% oxygen desaturation or arousal
Description

Obstructive Apnea Index with Arousal at 4% oxygen desaturation [(Total number of obstructive apneas associated with arousals or >= 4% oxygen desaturation) / (hours of sleep)]

Calculation
oai4pa = 60 * ( oarba4 + oaroa4 + oanba4 + oanoa4 ) / slpprdp
Units
events per hour
Type
numeric
Tags
oai4pa
SHHS Visit Number vs Obstructive Apnea Index 4% oxygen desaturation or arousal
N Mean StdDev Median Min Max Unknown Total
Visit 1 4,985 3.2 ± 7.2 0.6 0.0 89.7 819 5,804
Visit 2 2,613 3.2 ± 6.9 0.6 0.0 73.4 1,467 4,080
CVD Outcomes - - - - - - 5,042 5,042
Age at SHHS1 vs Obstructive Apnea Index 4% oxygen desaturation or arousal
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 4,985 3.2 ± 7.2 0.6 0.0 89.7 819 5,804
39.0 to 55.0 years 1,254 2.0 ± 6.7 0.2 0.0 89.7 197 1,451
55.0 to 63.0 years 1,287 2.9 ± 7.3 0.5 0.0 78.1 164 1,451
63.0 to 72.0 years 1,248 3.9 ± 7.9 1.0 0.0 85.0 203 1,451
72.0 to 100.0 years 1,196 4.1 ± 6.8 1.3 0.0 53.3 255 1,451
Gender vs Obstructive Apnea Index 4% oxygen desaturation or arousal
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 4,985 3.2 ± 7.2 0.6 0.0 89.7 819 5,804
Female 2,597 2.0 ± 5.1 0.3 0.0 86.1 442 3,039
Male 2,388 4.6 ± 8.8 1.3 0.0 89.7 377 2,765
Gender vs Obstructive Apnea Index 4% oxygen desaturation or arousal
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,613 3.2 ± 6.9 0.6 0.0 73.4 1,467 4,080
Female 1,413 2.2 ± 5.1 0.3 0.0 73.4 806 2,219
Male 1,200 4.3 ± 8.4 1.1 0.0 66.2 661 1,861
Race vs Obstructive Apnea Index 4% oxygen desaturation or arousal
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 4,985 3.2 ± 7.2 0.6 0.0 89.7 819 5,804
white 4,233 3.2 ± 7.0 0.6 0.0 86.1 674 4,907
black 411 4.0 ± 8.8 0.6 0.0 89.7 104 515
native amer/alaskan 10 0.8 ± 0.8 0.6 0.0 2.2 1 11
asian/pacific islander 80 2.8 ± 6.6 0.3 0.0 41.8 8 88
hispanic/mex. amer 249 2.6 ± 7.6 0.3 0.0 72.9 31 280
other 2 1.7 ± 2.5 1.7 0.0 3.5 1 3
Race vs Obstructive Apnea Index 4% oxygen desaturation or arousal
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,613 3.2 ± 6.9 0.6 0.0 73.4 1,467 4,080
white 2,280 3.2 ± 6.9 0.6 0.0 73.4 1,307 3,587
black 174 3.9 ± 7.7 0.7 0.0 48.9 82 256
native amer/alaskan 3 0.6 ± 0.6 0.6 0.0 1.1 5 8
asian/pacific islander 34 1.4 ± 2.8 0.2 0.0 13.8 14 48
hispanic/mex. amer 121 2.4 ± 6.1 0.3 0.0 39.3 59 180
other 1 0.0 - 0.0 0.0 0.0 - 1