The purpose of this study is to conduct a long-term follow-up of preterm infants with different birth conditions, aiming to provide data and resources for future care and to identify predictive and influencing factors related to their functional development over time. It is hypothesized that (1) preterm infants with varying birth conditions, such as birth weight and gestational age, will exhibit different developmental outcomes, and that the establishment of a Taiwan-specific preterm infant database is essential due to the lack of comprehensive local data and ethnic variations in gestational patterns; and (2) neonatal factors, including gestational age, birth weight, and postnatal complications (e.g., pneumonia, seizures, hypoxia), serve as potential risk factors influencing later developmental trajectories.
This study uses Taiwan's Preterm Infant Database to analyze gestational age, birth conditions, and long-term developmental outcomes in preterm infants. Participants are classified by gestational age and birth weight into subgroups, with demographic, clinical, and follow-up data (e.g., Bayley-III, neurodevelopmental exams, rehabilitation records) systematically collected. All data are de-identified, coded, and validated, with confidentiality maintained under IRB oversight. Statistical methods include ANOVA, chi-square, Kruskal-Wallis, repeated-measures ANOVA, and multiple regression models to identify predictive and risk factors. Standardized procedures govern data collection, management, and analysis, with strategies to address missing or inconsistent values. This framework ensures rigor, supports predictive modeling, and provides clinically relevant insights to guide early intervention and healthcare strategies.
Study Type
OBSERVATIONAL
Enrollment
6,000
No Intervention: Observational Cohort
Chang Gung Memorial Hospital
Taoyuan District, Taiwan
Bayley-III Cognitive Composite Score
Standardized cognitive domain score from the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III). Scale range: higher scores indicate better cognitive development.
Time frame: Baseline
Bayley-III Language Composite Score
Standardized language domain score from the Bayley-III. Scale range: higher scores indicate better language development.
Time frame: Baseline
Bayley-III Motor Composite Score
Standardized motor domain score from the Bayley-III. Scale range: higher scores indicate better motor development.
Time frame: Baseline
Head Circumference
Head circumference measured in centimeters (cm).
Time frame: Baseline
Body Length
Body length measured in centimeters (cm).
Time frame: Baseline
Body Weight
Body weight measured in kilograms (kg).
Time frame: Baseline
Neurological Examination Score
Results from standardized neurological assessment. Scale range: higher scores indicate better neurological function.
Time frame: Baseline
Mobility Ability Score
Functional mobility assessed using age-appropriate developmental checklist. Scale range: higher scores indicate greater independence.
Time frame: Baseline
Presence of Medical Complications/Comorbidities
Recorded as a binary variable (Yes/No). Unit: Proportion (%)
Time frame: Baseline
Rehabilitation Participation
Frequency of rehabilitation sessions per week based on clinical records. Unit: Sessions per week
Time frame: Baseline
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