Table 1.

Health System Navigator (HSN) phone call and SMS schedule

Week Number Post-Enrollment
		1	1.5	3	4	6	8	12	16
Type of Contact*	SMS		X	X		X		X
	Phone	X			X†		X	X	X‡

^*If participants are not reached at the time of a telephone call, the contact schedule is intensified by turning the next designated SMS reminder into a phone call. For example, if a subject is not reached at the week 1 phone call, the week 1.5 SMS becomes a phone call. The contact schedule differs slightly by study site, based on the site-specific time to return for CD4 count results.

^†HSN calls subject’s alternative contacts if the subject is still unreachable.

^‡ Participants are considered unreachable if the HSN still cannot contact them.