Table 1.

Representative quotations on determinants of high patient acceptability and use of 99DOTS.

Determinant of acceptability		Quotations
Performance expectancy
	99DOTS improved the patient–health care provider relationship	Q1. “[Being monitored by 99DOTS] doesn’t mean she [the health visitor] will forget about us; I feel that madam still remembers me... if I don’t call, she makes me understand what happens if I don’t take the pills.” (19-year-old woman, HIV uninfected, continuation phase of therapy)
	SMS text messaging alerts improved medication adherence	Q2. “Now I am remembering that I have to call at 11 O’clock. I have a new awareness that I should take tablets at 11’O clock.” (36-year-old man, HIV coinfected, continuation phase of therapy) Q3. “If we forget to call, the message alerts us to take tablets. So it trains our mind to take pills on time, so we will not forget to call. It is useful.” (52-year-old woman, HIV coinfected, continuation phase of therapy)
	Daily life was interrupted less when compared with facility-based directly observed therapy	Q4. “I prefer [99DOTS] because it saves our time. We can take the pills at home, and we can also do our domestic work.” (18-year-old woman, HIV uninfected, continuation phase of therapy)
Social influences
	Increased family involvement in the patient’s care	Q5. “[My son] taught me, ‘You have to take 2 tablets per day and follow the arrow mark from the starting point’... He gave me my medicines from the beginning [of therapy] and reminds me to take tablets...he also dials the toll free number for me.” (43-year-old woman, HIV coinfected, intensive phase of therapy)
Facilitating conditions
	Perception that health care providers are using the 99DOTS adherence data in a positive manner	Q6. “They have called me four or five times. They tell me that I missed taking my tablets and that I should call them. They will know [if] we don’t call them back.” (49-year-old man, HIV coinfected, intensive phase of therapy) Q7. Interviewer: “Did anybody come to your home from the hospital to see if you have taken your pills?”Respondent: “Yes... Madam came last week and another person also.” Interviewer: "How many times?”Respondent: “4 to 5 times.” (40-year-old man, HIV uninfected, continuation phase of therapy)