A cluster randomized trial of delivery of intermittent preventive treatment of malaria in pregnancy at the community level in Burkina Faso

Table 4 ANC and IPTp coverage at baseline and endline, by study arm, adjusted for gravidity and maternal age

	Baseline		Endline		Difference in differences^a	p-value for DiD
	Control	Intervention	Control	Intervention
	N = 188	N = 186	N = 180	N = 180
IPTp doses (mean, 95% CI)	2.4 (2.0, 2.9)	2.3 (1.8, 3.0)	2.2 (1.6, 3.0)	3.0 (2.4, 3.8)	0.9 (− 0.3, 2.1)	0.15
IPTp3+ (%, 95% CI)	57.7 (41.6, 72.3)	53.6 (37.3, 69.1)	50.1 (30.9, 69.2)	64.2 (45.1, 79.7)	17.9%-points (− 16.4, 52.2)	0.31
IPTp4+ (%, 95% CI)	16.6 (8.6, 30.7)	22.7 (8.6, 47.8)	22.2 (12.8, 35.8)	48.5 (30.9, 66.4)	19.7%-points (− 7.4, 46.7)	0.15
ANC visits (mean, 95% CI)	3.3 (2.9, 3.6)	3.3 (2.9, 3.7)	3.4 (3.1, 3.8)	3.7 (3.6, 3.8)	0.3 (− 0.3, 0.2)	0.37
ANC1+ (%, 95% CI)	91.5 (83.2, 95.9)	92.2 (80.0, 97.2)	95.5 (87.3, 98.4)	98.3 (95.9, 98.5)	2.2%^b	0.39
ANC4+ (%, 95% CI)	65.3 (51.4, 77.0)	64.9 (53.1, 75.1)	67.6 (50.3, 81.2)	80.2 (75.5, 84.1)	13.2%-points (− 6.0, 32.2)	0.18

IPTp Intermittent preventive treatment in pregnancy; ANC antenatal care visits
^aResults calculated using a logistic regression model with an interaction term for survey and arm, adjusted for gravidity and maternal age (< 20 vs ≥ 20 years); Confidence interval for DiD were estimated with identity link and either binomial or poisson distribution, as appropriate
^bThe identity link model for ANC1+ did not converge, thus is was not possible to calculate a 95% CI

ISSN: 1475-2875