Cut-point of 50g glucose challenge test for diagnosis of gestational diabetes compared with pre-gestational diabetes and its association with clinical risk factors: A retrospective cohort study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20251128007

Enrollment

240

Registered

2025-11-28

Start date

2025-11-01

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

Gestational diabetes Pre-gestational diabetes Diabetes, Gestational Diabetes Mellitus

Interventions

HbA1c greater or equal 6.5, fbs greater or equal 126 Singleton pregnant women Have antenatal care and delivered at Phrapokklao hospital in 2018-2024 1st ANC at GA less than or equal 20 weeks Screened

Diagnostic,Diagnostic

Positive for pregestational dm,Positive for GDM

Eligibility

Sex/Gender

Female

Age

19 Years to 50 Years

Inclusion criteria

Inclusion criteria: 1. Singleton pregnant women 2. Attended antenatal care and delivered at Phrapokklao 3. Visit hospital between 2018 and 2024 4. Had their first ANC visit at gestational age less than 20 weeks 5. Underwent screening for gestational diabetes mellitus (GDM) either at the first ANC visit or between 24 to 28 weeks of gestation

Exclusion criteria

Exclusion criteria: 1.Women diagnosed with pregestational diabetes mellitus prior to the current pregnancy 2.Pregnant women with underlying medical conditions requiring steroid medication 3.Pregnant women younger than 18 years of age

Design outcomes

Primary

Measure	Time frame
Level of blood sugar at 1st ANC or GA 24 to 28 week 50 g-GCT	—

Secondary

Measure	Time frame
Risk factors antepartum, peripartum History record	—

Countries

Thailand

Contacts

Public ContactBenya Wongsawangratsamee

Phrapokklao Hospital

benyaja1999@gmail.com039319666

Outcome results

None listed

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