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Table 1 Timing of procedures

From: A description of the methods of the aspirin supplementation for pregnancy indicated risk reduction in nulliparas (ASPIRIN) study

  6 0/7- 13 6/7 weeks GA Bi-weekly after enrollment 4 weeks after enrollment 16-20 weeks GA 26-30 weeks GA 28-30 weeks GA 34 weeks GA 36 weeks GA until delivery 6 weeks Post-Partum As needed
 Initial eligibility          
Clinical Assessments
 Physical exam          
 Medical history          
 Use of other medicines         
 Maternal Hb monitoring          
 BP Monitoring        
Medication Activities
 Instructions for medication use         
 Medication compliancea           
Outcome Assessment
 Preterm Birth           
 Other maternal outcomes         
 Other fetal outcomes         
 Unanticipated medical care          
 Serious Adverse Events         
  1. aMedication is supplied until 36 weeks GA; therefore duration of medication-related monitoring depends on GA at randomization