Name
phrnumsf
Label
Number of sleep to awake shifts per hour
Units
events per hour
Type
numeric
Labels
A4b. Visit of Sleep Study vs Number of sleep to awake shifts per hour
N Mean StdDev Median Min Max Unknown Total
Visit 1 3,012 0.5 ± 0.5 0.3 0.0 4.7 - 3,012
Visit 3 2,332 0.5 ± 0.5 0.4 0.0 4.7 - 2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Number of sleep to awake shifts per hour
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 3,012 0.5 ± 0.5 0.3 0.0 4.7 - 3,012
Non-Hispanic White 1,842 0.4 ± 0.5 0.3 0.0 4.7 - 1,842
Non-Hispanic Black 359 0.6 ± 0.6 0.4 0.0 4.7 - 359
Hispanic 557 0.5 ± 0.5 0.3 0.0 3.6 - 557
Asian 112 0.4 ± 0.5 0.3 0.0 4.1 - 112
Other 142 0.5 ± 0.6 0.4 0.0 3.2 - 142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Number of sleep to awake shifts per hour
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 2,332 0.5 ± 0.5 0.4 0.0 4.7 - 2,332
Non-Hispanic White 1,494 0.5 ± 0.5 0.3 0.0 4.7 - 1,494
Non-Hispanic Black 247 0.6 ± 0.5 0.4 0.0 2.7 - 247
Hispanic 397 0.6 ± 0.5 0.4 0.0 3.0 - 397
Asian 84 0.4 ± 0.3 0.4 0.0 1.9 - 84
Other 110 0.6 ± 0.6 0.4 0.0 3.9 - 110