Primary Outcome
PRETERM BIRTH
The intention-to-treat analysis of the primary clinical outcome showed no evidence of a reduction in the rate of preterm birth with the screen and treat strategy compared with usual care. The rate of preterm birth was 3.8% (127 of 3333) among women in the screen and treat and 4.6% (153 of 3338) among women in the control group (RR, 0.83; 95% CI, 0.66-1.05; 