TABLE 3.

Prespecific Subanalyses of Intervention Effect Comparing Women Who Gave Birth Before Scheduled Refill With Women Who had Not Given Birth Before Scheduled Refills, May 2014–May 2015, Sofala, Mozambique^*

Characteristic	Total, N (%)	Intervention, n (%)	Control, n (%)	OR (95% CI)	P
Total	761 (100)	390 (51.2)	371 (48.8)
Missing birth information	28 (3.7)	9 (2.3)	19 (5.1)
Women who gave birth before first ARV refill (30 d)
Total, (% of overall column total)	46 (6.0)	20 (5.1)	26 (7.0)
Returned	7 (15.2)	6 (30.0)	1 (3.8)	2.23 (−0.05 to 4.5)	0.055
Did not return	39 (84.8)	14 (70.0)	25 (96.2)	1 (reference)
Women who did not give birth before first ARV refill (30 d)
Total, (% of overall column total)	687 (90.3)	361 (92.6)	326 (87.9)
Returned	451 (65.6)	267 (74.0)	184 (56.4)	1.87 (1.05 to 3.28)	0.031
Did not return	236 (34.4)	94 (24.0)	142 (43.6)	1 (reference) Interaction P: 0.161
Women who gave birth before second ARV refill (60 d)
Total, (% of overall column total)	129 (17.0)	65 (16.7)	64 (17.3)
Returned	33 (25.6)	24 (36.9)	9 (14.1)	4.72 (1.73 to 12.9)	0.002
Did not return	96 (74.4)	41 (63.1)	55 (85.9)	1 (reference)
Women who did not give birth before second ARV refill (60 d)
Total, (% of overall column total)	604 (79.4)	316 (81.0)	288 (77.6)
Returned	354 (58.6)	199 (63.0)	155 (53.8)	1.93 (1.09 to 3.44)	0.025
Did not return	250 (41.4)	117 (37.0)	133 (46.2)	1 (reference) Interaction P: 0.062
Women who gave birth before third refill (90 d)
Total, (% of overall column total)	275 (36.1)	144 (36.9)	131 (35.3)
Returned	62 (22.5)	34 (23.6)	28 (21.4)	1.07 (0.49 to 2.34)	0.86
Did not return	213 (77.5)	110 (76.4)	103 (78.6)	1 (reference)
Women who did not give birth before third refill (90 d)
Total, (% of overall column total)	458 (60.2)	237 (60.8)	221 (59.6)
Returned	235 (51.3)	125 (52.7)	110 (49.8)	1.11 (0.60 to 2.05)	0.75
Did not return	223 (48.7)	112 (47.3)	111 (50.2)	1 (reference) Interaction P: 0.929

^*Numbers giving birth before each subsequent refill are cumulative totals.