Incidence and risk factors of obstetric anal sphincter injuries (OASIS) at Srinagarind hospital between 2014 and 2023 : A retrospective cohort study

• Conditions: obstetric anal sphincter injuries (OASIS); obstetric anal sphincter injuries; OASIS; OASI; Perineal laceration; Perineal tear

• Registration Number: TCTR20240416004
• Lead Sponsor: Department of Obstetric and Gynecology, Khon Kaen university

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2024-04-16
• Last Update Posted: 19 August 2024
• Study Completion: 2026-05-31

Recruitment & Eligibility

• Status: Pending (Not yet recruiting)
• Sex: Female
• Target Recruitment: 10000

Inclusion Criteria

Pregnant women with gestational age of 24 weeks or more, or infants weighing 500 grams or more born through vaginal delivery at Srinagarind hospital between January 1, 2014, and December 31, 2023.

Exclusion Criteria

1. Women who have undergone cesarean section.
2. Women who have had a miscarriage (gestational age less than 24 weeks and infant weight less than 500 grams).
3. Incomplete or missing medical treatment records and history.

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Incidence of obstetric anal sphincter injuries (OASIS) At day of delivery Incidence in percentage

Secondary Outcome Measures

Name	Time	Method
Risk factors of obstetric anal sphincter injuries (OASIS) At day of delivery Risk factors in percentage