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. 2021 Apr 28;10(4):e25407. doi: 10.2196/25407

Table 1.

Study measures and timepoints.

Study measures Timepoints


Prenatal period
Postnatal period


Initial survey Prenatal follow-up (1-5) Delivery
3 months 6 months 12 months
General measures

Eligibility questions and consent






Demographic information 






Health behavior (eg, substance use, physical activity, and diet) 


Prior, current, and changes in medical history and conditions 


Pandemic Objective Hardship Scale


Perceived COVID-19 threat


Distress thermometer 



Edinburgh Postpartum Depression Scale (EPDS) 


Pregnancy-Related Anxiety Questionnaire (PRAQ/PRAQ-R2) 





PROMISa Anxiety 


PROMIS Anger 




PROMIS Sleep-Related Impairment





PROMIS Sleep Disturbance





Perceived Stress Scale (PSS)





Connor-Davidson Resilience Scale (CD-RISC-2) 





Social isolation


Couple’s Satisfaction Index (CSI) 



Social Support Effectiveness Questionnaire (SSEQ) 





Interpersonal Support Evaluation List (ISEL) 






Intolerance of Uncertainty Scale- Short form (IUS) 






Physical abuse (PRAMSb



Adverse Childhood Experiences (ACEs)c 




The Everyday Discrimination Scale (EDS)c





Self-compassionc





Intended infant feeding 





Gender identity and sexual orientation questionsc




Delivery measures

Delivery type and outcome (live birth, miscarriage, and neonatal death)






Baby information and health (weight, length, sex, and NICUd stay)






Birth experience and COVID-19 restrictions during birth or NICU stay






Initial breastfeeding questions






COVID-19 impact on breastfeeding and bonding





Child development measures 

Infant health





Ages and Stages Questionnaire, Third Edition (ASQ-3)






Ages and Stages Questionnaire: Social-Emotional, Second Edition (ASQ:SE-2)






Brief Infant Sleep Questionnaire (BISQ) 





The Infant Behaviour Questionnaire–Revised Very Short Form (IBQ-R) 





Crying patterns 






Infant feeding




COVID-19 disruptions to mothers’ postpartum services 




COVID-19 disruptions to infant appointments and services 



aPROMIS: Patient-Reported Outcomes Measurement Information System.

bPRAMS: Pregnancy Risk Assessment Monitoring System.

cThese measures were only collected once.

dNICU: neonatal intensive care unit.