TABLE 5.

Description of the Coding of the Independent Variables Included in the Regression Model

Independent Variable	Coding of Variable
Chronological age	Treated as a continuous variable in 1 mo increments
Disability status	0 = no additional disabilities 1 = additional disabilities
Adherence to the 1-3-6 EHDI guidelines	0 = does not meet 1 = meets
Adult who is deaf or hard of hearing in the home	0 = not present 1 = present
Maternal level of education	0 = less than a bachelor’s degree 1 = bachelor’s degree and higher
Degree of hearing loss	0 = mild to moderate 1 = moderately severe to profound