. 2022 May 13;19(5):e1004002. doi: 10.1371/journal.pmed.1004002

Table 3. Fetal loss and stillbirth prevalence, by prenatal study group.

Definition	Control^a (n = 909)	Intervention^a (n = 879)	Δ^b (95% CI)	P value
Fetal death <22 weeks of gestation	13 (1.43)	21 (2.39)	1.00 (−0.25, 2.25)	0.12
Fetal death ≥22 weeks and <28 weeks of gestation	8 (0.88)	5 (0.57)	−0.30 (−1.10, 0.48)	0.45
Stillbirth^c	16 (1.76)	17 (1.93)	0.18 (−1.08, 1.44)	0.78

^aValues are frequencies (%).

^bRisk differences (Δ) in pp were estimated using linear probability models with robust variance estimation, adjusted for health center and randomization block as fixed effect to account for clustering by the study design.

^cChild died ≥28 weeks of gestation, before or during birth.

CI, confidence interval; pp, percentage points.