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Files

Variables

Name

phrnumsf_f1t3

Label

Number of sleep to awake shifts per hour from type III home sleep apnea test

Units

events per hour

Type

numeric

	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

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	3,012	0.5	± 0.5	0.3	4.7	-	3,012
Non-Hispanic White	1,842	0.4	± 0.5	0.3	4.7	-	1,842
Non-Hispanic Black	359	0.6	± 0.6	0.4	4.7	-	359
Hispanic	557	0.5	± 0.5	0.3	3.6	-	557
Asian	112	0.4	± 0.5	0.3	4.1	-	112
Other	142	0.5	± 0.6	0.4	3.2	-	142

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	2,332	0.5	± 0.5	0.4	4.7	-	2,332
Non-Hispanic White	1,494	0.5	± 0.5	0.3	4.7	-	1,494
Non-Hispanic Black	247	0.6	± 0.5	0.4	2.7	-	247
Hispanic	397	0.6	± 0.5	0.4	3.0	-	397
Asian	84	0.4	± 0.3	0.4	1.9	-	84
Other	110	0.6	± 0.6	0.4	3.9	-	110

Nulliparous Pregnancy Outcomes Study Monitoring Mothers-to-be