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Adverse maternal and neonatal outcomes in extremely young mothers (17 years old or younger) versus women aged 20 to 35 years old: a retrospective cohort study in Thailand

Comparative study of adverse pregnancy outcomes in extremely young mothers under 17 years and adults aged 20 to 35 years

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20250202002
Enrollment
2310
Registered
2025-02-02
Start date
2025-01-06
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Comparative study of adverse pregnancy outcomes in extremely young mothers under 17 years and adults aged 20 to 35 years Teenage pregnancy Adolescent pregnancy Adverse pregnancy outcomes Teenage pregnancy Adolescent pregnancy Adverse pregnancy outcomes Comparative studies in teenage pregnancy Adverse maternal outcomes Maternal anemia Pregnancy induced hypertension CHT Preeclampsia Eclampsia GDM Gestational diabetes melitus Preterm birth Adverse neonatal outcomes Neonatal death Stillbirth

Interventions

pregnancy age group less than or equal to 17 years (The age of pregnant women calculated up to their expected delivery date),pregnancy age group 20-35 years (The age of pregnant women calculated up to
Health Services Research,Health Services Research
Extremely teenage pregnancy ,Adult pregnancy

Sponsors

Human research protection unit
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
10 Years to 35 Years

Inclusion criteria

Inclusion criteria: 1.pregnancy age group <= 17 years 2.pregnancy age group 20-35 years PS: The age of pregnant women calculated up to their expected delivery date.

Exclusion criteria

Exclusion criteria: 1.Women who could not provide data according to the case record form 2.Pregnant women referred to other hospitals for delivery

Design outcomes

Primary

MeasureTime frame
Maternal anemia since third trimester(GA at least 28wk) until date of delivery hemoglobin level below 11 g/dl at third trimester,Pregnancy induced hypertension after GA 20 wk until date of delivery BP more or equal 140/90 mmHg when repeated 2 times in 4 hr,Gestational diabetes mellitus since ANC until date of delivery Criteria for diagnosis GDM according from Carpenter & Coustan,Preterm birth date of delivery GA below 37 wk at date of delivery

Secondary

MeasureTime frame
The prevalence of pregnant women across different age groups during the study period 2557-2566 The number of pregnant women in the same age group divided by the total number of pregnant women during the study period, multiplied by 100,The trend in the number of pregnant women compared across each year 2557-2566 The trending graph compares the number of pregnant women across each year,The trends and prevalence of adverse pregnancy outcomes among women who are either too young and adult, compared across each year 2557-2566 The trending graph compares the prevalence of adverse pregnancy outcomes between very young women and adults (20 to 35 years) for each year

Countries

Thailand

Contacts

Public ContactJirayus Pattanamanee

Mahidol University

jirayus.pa@gmail.com0831062263

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026