Vitamin D deficiency, reactive airway disease, asthma Vitamin D deficiency, reactive airway disease, asthma
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Preterm infants GA < 32 weeks or BW < 1,500 grams who accomplished in project Si 176/2023 and age above 3 years. 2. Parents can communicate with Thai language or has translator who can speak Thai.
Exclusion criteria
Exclusion criteria: 1. Respiratory tract infection 2. Recent brain, thoracic or abdominal surgery within 4 weeks 3. Oral ulcer that interrupt pulmonary function test 4. Cannot recruit from telephone interview
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Reactive airway disease when the patient reach age 3 years Impulse oscillometry | — |
Secondary
| Measure | Time frame |
|---|---|
| Lung function test when the patient reach age 3 years Impulse Oscillatory ,Growth trajectory when the patient reach age 3 years Growth chart | — |
Countries
Thailand
Contacts
Department of Pediatrics, Faculty of Medicine, Siriraj Hospital