TABLE 5.

Results of enhanced community-based models of TB contact tracing

	Contacts remaining to be screened n	Contacts screened n (%)	Contacts screened positive n (%)	Patients diagnosed with TB among those who screened positive n (%)
Enhanced Model 1: phone call reminders (November 2011–February 2012)
Phone call reminder to patient/contact to attend at 1 month	137	1 (1)	1 (1)	0
Phone call reminder to patient/contact to attend 7 days after initial phone call	136	0	—	—
Home visit from motorcycle adherence officer for TB screening	136	22 (16)	11 (8)	0
Enhanced Model 2: screening by phone (March 2012–July 2012)
Screen contact by phone at 7 days	226	118 (52)	0	—
Home visit from motorcycle adherence officer for TB screening	108	32 (14)	11 (5)	0
Enhanced Model 3: targeted screening (August 2012–October 2012)
Home visit from motorcycle adherence officer for TB screening after 7 days (if high-risk*)	107	31 (29)	2 (2)	0
For low risk contacts, second letter given to index patient at follow-up TB appointment	31	0	—	—

^*Defined as household contact of multidrug-resistant TB patient, household contact of patient with 3+ sputum smear, presence of children aged <5 years in household.

TB = tuberculosis.