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Table 1 Summary of data collection and timeline

From: Effectiveness of community-based folate-oriented tertiary interventions on incidence of fetus and birth defects: a protocol for a single-blind cluster randomized controlled trial

Data

Pre-pregnancy

(couples)

Prenatal

(female)

postnatal

Recruiments

First trimester

Second trimester

Third trimester

Neonatal

At 3 month

At 6 month

General characteristics

 Sociodemographic

×

×

     

 Nationality

×

×

     

 Educational level

×

×

     

 Occupation

×

×

     

 Incomes

×

×

     

 Weight

×

×

×

×

   

 Height

×

×

     

 Nutrients supplements

       

  Folic acid

×

×

     

  Multivitamin

×

×

     

  Single Vitamin

×

×

     

  Iron

×

×

     

  Calcium

×

×

     

  Zinc

×

×

     

 Smoking status

×

×

     

 Drinking status

×

×

     

 Last menstrual period time

 

×

     

 Reproductive history

 

×

     

 Chronic disease

       

  Diabetes

 

×

     

  Hypertension

 

×

     

 Family health history

 

×

     

 Herbal Drug

 

×

     

 Chemical exposure

 

×

     

 Fetus abnormality

 

×

×

×

   

 Drug use

 

×

     

Infants

 Gender

    

×

  

 Mode of delivery

    

×

  

 Birth weight

    

×

  

 Length at birth

    

×

  

 Weight

     

×

×

 Length/height

     

×

×

 Head circumference

    

×

×

×

 Waist circumference

    

×

×

×

Birth defects

    

×

×

×