Table 4. Adjusted incident rate ratios for number of messages received in a visit.

	Incident Rate Ratio (95% CI)
Age (per 1 year increase)	0.98 (0.98, 0.99)
Time since HIV diagnosis (per 1 sqrt-day increase)	0.98 (0.97, 0.98)
Consultation	2.01 (1.86, 2.17)
Pharmacy pick-up	0.73 (0.69, 0.77)
Counseling	2.91 (2.72, 3.11)
Contrasts of Post vs. Pre (ref)
Female at Maganja da Costa	1.84 (1.68, 2.02)
Male at Maganja da Costa	2.59 (2.05, 3.28)
Female at Morrumbala	3.73 (3.16, 4.42)
Male at Morrumbala	3.66 (2.44, 5.47)
Female at Pebane	1.22 (1.01, 1.46)
Male at Pebane	2.48 (1.59, 3.86)