Table 2.

Pill count and bottle weight adherence for mother-infant pairs with ≥1 adherence measure.

	Percent adherence					Dichotomous adherence
	n	Mean	SD*	Median	IQR**	% non-adherent†
Maternal + Infant regimen
Overall		0.87	0.22	0.98	0.82-1.00	33
Week 4	1048	0.86	0.23	0.98	0.82-1.00	34
Week 12	1024	0.91	0.19	1.00	0.91-1.00	22
Week 18	974	0.87	0.19	0.97	0.76-1.00	37
Week 28	750	0.82	0.27	0.96	0.74-1.00	40
Maternal regimen
Overall		0.87	0.21	0.97	0.85-1.00	32
Week 4	571	0.86	0.22	0.96	0.82-1.00	37
Week 12	552	0.89	0.19	0.98	0.89-1.00	26
Week 18	522	0.91	0.17	0.99	0.90-1.00	24
Week 28	401	0.81	0.27	0.94	0.73-1.00	42
Infant regimen
Overall		0.86	0.23	1.00	0.78-1.00	34
Week 4	477	0.86	0.24	1.00	0.81-1.00	31
Week 12	472	0.92	0.19	1.00	0.95-1.00	17
Week 18	452	0.82	0.20	0.87	0.67-1.00	51
Week 28	349	0.82	0.27	0.98	0.74-1.00	39
HIV-infected infants
Overall		0.84	0.26	0.96	0.83-1.00	41
Week 4	30	0.85	0.22	0.93	0.84-1.00	47
Week 12	24	0.89	0.22	0.99	0.89-1.00	29
Week 18	18	0.82	0.30	0.98	0.75-1.00	39
Week 28	11	0.71	0.35	0.83	0.45-1.00	55
HIV-uninfected infants
Overall		0.87	0.22	0.98	0.82-1.00	33
Week 4	1018	0.86	0.23	0.99	0.82-1.00	34
Week 12	1000	0.91	0.19	1.00	0.91-1.00	22
Week 18	956	0.87	0.19	0.97	0.76-1.00	37
Week 28	739	0.82	0.27	0.96	0.74-1.00	40

^*SD=standard deviation

^**IQR=Interquartile range

^†Having less than 90% pill count or bottle weight adherence is considered non-adherent.