Thai COVID-19 Cohort Study – MU EMR Study

Study profile

Description

The Thai COVID-19 Cohort Study is a retrospective review of electronic medical records of pregnant women who gave birth from 2018-2021 in public hospitals in the province of Lampang, Northern Thailand. The objective of this study was to report the use of antenatal care and outcome of pregnancy of women in Lampang province in Northern Thailand before and during the COVID-19 pandemic.

Countries involved: Thailand

Sample size: 13,721 in Lampang province

Metadata collected

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Data collected?

Demographics

Date of birth (full or MM/YY)

✅

Age at contact

✅

Sex / gender

✅

Country of birth

✅

Ethnic group / race / population sector

✅

Income level

Employment / occupation

✅

Other socio-economic status proxy

Education level

✅

Civil status (‘marital’)

✅

Locality (of health care provision)

✅

Locality (of residence)

Household size

Household composition

Hospitalisation

Admission / discharge dates or duration

✅

Episode dates

Episode type (e.g., general; birth)

✅

Diagnosis (e.g., codes)

✅

Procedures (e.g., codes)

Procedures dates

Dispensed medications

ICU admission

Admission type (planned/emergency)

Hospitalisation for COVID-19

Primary care, outpatient care

Date of visit / contact

✅

Diagnosis codes

✅

Dispensed medications codes

Dispensed medications date

Primary care utilisation summary

Health status and exposures

Height

Weight

Date of anthropometrics

Chronic / co-morbid conditions~

✅

Medications for chronic conditions

Smoker in household

Current smoker

~ can include obesity

Vaccines

COVID-19 vaccine (timing, doses)

✅

Type of COVID-19 vaccine

✅

Other vaccinations / vaccination history

COVID-19 symptoms & contacts

COVID-19 episodes

✅ **

COVID-19 symptoms (type, severity, duration)

Influenza-like symptoms (type, timing, duration)

COVID-19 health-seeking behaviour

COVID-19 contacts in household

Medications during C-19 episode

** if hospitalised (all) or if primary care consultation (subset for England)

Pregnancy & birth

Date of delivery

✅

Length of gestation

✅

Birthweight

Maternal age at delivery

✅

Pregnancy complications

✅

Smoking pre-pregnancy

Vaccines in pregnancy (non-COVID-19)

Parity / nulliparity

✅

Pre-pregnancy body mass index

Pregnancy outcome (e.g. miscarriage)

✅

Mode of delivery

✅

Sex of baby

Congenital anomalies

Other newborn complications

Placental weight

Antenatal care usage

✅

Currently pregnant

Death

Date of / age at death

✅

Cause of death

✅

COVID-19 laboratory tests

Sample type tested

Sample / specimen collection date

SARS-CoV-2 PCR test date

✅

SARS-CoV-2 PCR pos / neg result

✅

SARS-CoV-2 PCR Ct Value

SARS-CoV-2 LFT test date

✅

SARS-CoV-2 LFT test result

✅

Serology test date

Serology test results

SARS- COV-2 genomic test results

SARS- COV-2 variant/ lineage

Other lab tests

COVID-19 sample collection / storage

Sample type collected

Sample collection date

Sample collection time

Sample processing

Sample quality

Consent to use research sample

Consent to share research sample

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