Table 1. Data variables required to support newborn screening analysis.

Variable	Values
De-identified participant ID
Sample type	Cord or heel
Application method to filter card	Direct, tube, syringe
Sex	Male, female, ambiguous
Birthweight	grams
Multiple birth	Yes/no; if yes, baby 1,2,3 or a,b,c
Feeding status	Breast, TPN, formula, NPO
Packed red blood cell transfusion	Yes/no: if yes, date of latest transfusion
Gestational age	If available; weeks + days
Date and time of birth
Date and time of sample collection

TPN, total parenteral nutrition; NPO, nil per os (nothing by mouth).