International Clinical Trial: Monitoring of vitamin K1 levels and clinical prognosis analysis in preterm infants of different gestational ages

Geneva, Sept. 21 -- International Clinical Trials Registry received information related to the study (ChiCTR2600132269) titled 'Monitoring of vitamin K1 levels and clinical prognosis analysis in preterm infants of different gestational ages' on Sept. 11.

Study Type: Observational study

Study Design: Cross-sectional

Primary Sponsor: Fengtai Maternal and Child Health Hospital

Condition: Vitamin K Deficiency Bleeding,VKDB

Intervention: Early preterm infant group (gestational age <32 weeks)

Recruitment Status: Not Recruiting

Phase: N/A

Date of First Enrollment: 2026-09-11

Target Sample Size: Early preterm infant group (gestational age <32 weeks); The mid-term preterm group (32 weeks = gestational age <34 weeks) and the late-te...