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

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

  Baseline Endline Difference in differencesa 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
  1. IPTp Intermittent preventive treatment in pregnancy; ANC antenatal care visits
  2. 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
  3. bThe identity link model for ANC1+ did not converge, thus is was not possible to calculate a 95% CI