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Variables

Old Version You are viewing variable information that is kept around for historical purposes only. The latest version v0.20.0 is available here.

Name

rdinr4p

Label

Overall RDI (NREM) at 4% oxygen desaturation

Description

Non-REM RDI at 4% oxygen desaturation [(Total number of apneas and hypopneas in non-REM sleep associated with >= 4% oxygen desaturation) / (hours of NREM sleep)]

Calculation

rdinr4p = 60 * ( hnrbp4 + hnrop4 + canbp4 + canop4 + oanbp4 + oanop4 ) / ( slpprdp - minremp )

Units

events per hour

Type

numeric

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Visit 1	5,642	7.3	± 12.3	2.4	0.0	121.6	162	5,804
Visit 2	2,609	8.6	± 13.3	3.1	0.0	115.1	1,471	4,080
CVD Outcomes	-	-	-	-	-	-	5,042	5,042

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	5,642	7.3	± 12.3	2.4	121.6	162	5,804
39.0 to 55.0 years	1,424	5.3	± 11.8	1.2	121.6	27	1,451
55.0 to 63.0 years	1,422	6.8	± 12.1	2.1	100.5	29	1,451
63.0 to 72.0 years	1,417	8.4	± 13.2	3.3	117.2	34	1,451
72.0 to 100.0 years	1,379	8.6	± 11.9	4.0	80.3	72	1,451

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	5,642	7.3	± 12.3	2.4	121.6	162	5,804
Female	2,951	4.6	± 9.4	1.3	96.1	88	3,039
Male	2,691	10.2	± 14.4	4.7	121.6	74	2,765

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	2,609	8.6	± 13.3	3.1	115.1	1,471	4,080
Female	1,411	5.7	± 10.7	1.8	97.0	808	2,219
Male	1,198	11.9	± 15.2	6.1	115.1	663	1,861

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	5,642	7.3	± 12.3	2.4	0.0	121.6	162	5,804
white	4,785	7.3	± 12.2	2.5	0.0	121.6	122	4,907
black	477	7.9	± 14.4	2.1	0.0	118.5	38	515
native amer/alaskan	11	4.1	± 4.6	2.2	0.4	13.2	-	11
asian/pacific islander	88	4.8	± 9.4	1.5	0.0	49.1	-	88
hispanic/mex. amer	278	6.1	± 11.0	1.7	0.0	69.8	2	280
other	3	1.8	± 2.1	1.1	0.2	4.1	-	3

Sleep Heart Health Study