Treatment Adherence among HIV and TB Patients Using Single and Double Way Mobile Phone Text Messages: A Randomized Controlled Trial

Table 8

Adherence to TB treatment between the single-way and double-way SMS and control of the groups before and after 3 months of intervention.

Assessment	Group	Level of adherence		Effect estimate
		Poor No (%)	Good No (%)	RR (95% CI)	-value
Baseline	Control	20 (71.4)	8 (28.6)	1.43 (0.92–2.21)	0.101
	Single-way SMS	14 (50.0)	14 (50.0)
	Control	20 (71.4)	8 (28.6)	1.33 (0.88–2.02)	0.168
	Double-way SMS	15 (53.6)	13 (46.4)
After 3 months intervention	Control	4 (20.0)	16 (80.0)	0.46 (0.17–1.24)	0.101
	Single-way SMS	10 (43.5)	13 (56.3)
	Control	4 (20.0)	16 (80.0)	0.40 (0.15–1.05)	0.039
	Double-way SMS	12 (50.0)	12 (50.0)

RR = risk ratio; CI = Confidence Interval; SMS: short message service.