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Files

Variables

Name	Label	Folder
age_at_stdydt Age (years) at sleep study visit date	Age (years) at sleep study visit date	Demographics
crace Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g	Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g	Demographics
ga_at_stdydt Gestational age (weeks) at sleep study visit date	Gestational age (weeks) at sleep study visit date	Demographics

Nulliparous Pregnancy Outcomes Study Monitoring Mothers-to-be