Table 1.

Reasons giving for declining to enroll infant in SCID screening study (959 of 2,796 mothers interviewed)

Reason	Proportion of mothers endorsing
Mother is not interested.	25%
Baby looks healthy, so test not required.	23%
Mother needs more time to consider it.	10%
If test is voluntary, mother does not want it.	9%
Enrolling would be against traditional beliefs.	7%
Baby has had enough testing.	4%
Father or other family members are against it.	3%
Mother is not Navajo.	3%
(Uncommon reasons, each)*	<2%
(No reason recorded)	11%

^*Examples: prior baby already tested, privacy concerns, does not think SCID is a serious problem.