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Nulliparous Pregnancy Outcomes Study Monitoring Mothers-to-be
Average Hypopnea length (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used from type III home sleep apnea test
A4b. Visit of Sleep Study vs Average Hypopnea length (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used from type III home sleep apnea test
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Visit 1
3,012
11.4
± 8.4
13.0
0.0
62.0
-
3,012
Visit 3
2,332
11.8
± 8.1
13.0
0.0
85.0
-
2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Average Hypopnea length (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used from type III home sleep apnea test
Visit 1
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
3,012
11.4
± 8.4
13.0
0.0
62.0
-
3,012
Non-Hispanic White
1,842
11.5
± 8.4
13.0
0.0
62.0
-
1,842
Non-Hispanic Black
359
11.9
± 8.7
13.0
0.0
47.0
-
359
Hispanic
557
11.2
± 8.2
12.0
0.0
46.0
-
557
Asian
112
9.8
± 8.4
12.0
0.0
31.0
-
112
Other
142
10.7
± 8.5
12.0
0.0
39.0
-
142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Average Hypopnea length (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used from type III home sleep apnea test