Name

rdi3p

Label

Overall RDI at 3% oxygen desaturation

Description

Respiratory Disturbance Index at 3% oxygen desaturation. Ratio of the count of all apneas (central and obstructive) and hypopneas associated with at least a 3% oxygen desaturation to the total sleep time expressed in hours. [(Total number of apneas and hypopneas associated with >= 3% oxygen desaturation) / (hours of sleep)]

Calculation

rdi3p = 60 * ( hrembp3 + hrop3 + hnrbp3 + hnrop3 + carbp3 + carop3 + canbp3 + canop3 + oarbp3 + oarop3 + oanbp3 + oanop3 ) / slpprdp

Units

events per hour

Type

numeric

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Visit 1	5,804	13.7	± 14.9	8.8	0.0	157.2	-	5,804
Visit 2	2,651	15.9	± 15.6	10.9	0.0	117.6	1,429	4,080
CVD Outcomes	-	-	-	-	-	-	5,042	5,042

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	5,804	13.7	± 14.9	8.8	157.2	-	5,804
39.0 to 55.0 years	1,451	10.7	± 14.3	5.7	116.8	-	1,451
55.0 to 63.0 years	1,451	13.2	± 14.8	8.2	111.7	-	1,451
63.0 to 72.0 years	1,451	15.5	± 15.4	11.0	115.6	-	1,451
72.0 to 100.0 years	1,451	15.6	± 14.7	11.2	157.2	-	1,451

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	5,804	13.7	± 14.9	8.8	157.2	-	5,804
Female	3,039	10.3	± 12.8	6.1	157.2	-	3,039
Male	2,765	17.5	± 16.2	12.8	116.8	-	2,765

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	2,651	15.9	± 15.6	10.9	117.6	1,429	4,080
Female	1,425	12.5	± 13.5	8.6	107.5	794	2,219
Male	1,226	19.9	± 16.9	15.1	117.6	635	1,861

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	5,804	13.7	± 14.9	8.8	0.0	157.2	-	5,804
white	4,907	13.9	± 14.9	9.1	0.0	157.2	-	4,907
black	515	13.7	± 16.2	7.6	0.0	112.0	-	515
native amer/alaskan	11	11.5	± 6.5	9.8	1.3	21.4	-	11
asian/pacific islander	88	9.4	± 11.6	4.8	0.0	55.9	-	88
hispanic/mex. amer	280	12.2	± 13.5	7.5	0.0	70.2	-	280
other	3	7.9	± 10.7	2.2	1.4	20.2	-	3

Sleep Heart Health Study