Data from 346 pregnant women ( CTX = 190 ; SP = 156 ) and 311 newborns ( CTX = 166 and SP = 145 ) showed that preterm deliveries ( CTX 3.6 % ; SP 3.0 % ) ; still births ( CTX 3.0 % ; SP 2.1 % ) , neonatal deaths ( CTX 0 % ; SP 1.4 % ) , and spontaneous abortions ( CTX 0.6 % ; SP 0 % ) were similar between study arms .