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Table 1 Flow diagram of the study design

From: A multicenter randomized controlled trial protocol to evaluate the effectiveness of an educational intervention on fertility knowledge, intention and behavior among Iranian new couples

  STUDY PERIOD
Pre-intervention Post- intervention
TIMEPOINT Enrolment Allocation 3th month 12th month 18th month
Enrolment
 Eligibility screening ×     
 Informed consent ×     
 Randomization   ×    
Interventions
 Intervention (fertility knowledge training)    × × ×
 Control (typical premarital counselling)    × × ×
Assessments
Primary outcomes
 fertility knowledge   × × × ×
 childbearing intention   × × × ×
 first planned pregnancy   × × × ×
Secondary outcomes
 contraception method use   × × × ×
 miscarriage   × × × ×
 unplanned pregnancy   × × × ×