Healthcare burden of bronchopulmonary dysplasia among very preterm infants in China: a cohort study

OBJECTIVE: To assess the healthcare burden of bronchopulmonary dysplasia (BPD) among very preterm infants in China. DESIGN: A prospective cohort study between 2022 and 2023. SETTING: Chinese Neonatal Network (CHNN) participating centres. PATIENTS: Infants with gestational age <32 weeks admitted to CHNN neonatal intensive care units. MAIN OUTCOME MEASURES: 's criteria. RESULTS: Among 17 793 eligible infants, 568 (3.2%) infants died before 36 weeks' PMA, 1729 (9.7%) were discharged against medical advice before 36 weeks' PMA, 9895 (55.6%) were classified as no BPD, 2751 (15.5%) developed Grade 1 BPD, 2634 (14.8%) developed Grade 2 BPD and 216 (1.2%) developed Grade 3 BPD. Infants with BPD had significantly longer hospital stays than those without BPD (median (IQR), 67 (52-84) vs 44 (34-56) days) and incurred higher total hospitalisation charges (median (IQR), 127 (91-177) vs 73 (52-103) thousand CNY) and charge per day (median (IQR), 1975 (1638-2361) vs 1714 (1409-2048) CNY). Mortality at discharge increased with BPD severity, with rates of 0.2% (18/9895) for infants without BPD, 0.5% (15/2751) for Grade 1 BPD, 2.1% (56/2634) for Grade 2 and 26.9% (58/216) for Grade 3. Similarly, the rates of major comorbidities and the need for home oxygen therapy increased with BPD severity. CONCLUSIONS: Greater BPD severity was associated with increased comorbidities, higher in-hospital mortality and greater utilisation of healthcare resources. These findings emphasised the ongoing need to develop cost-saving strategies to reduce the risk and severity of BPD in this vulnerable population and improve overall care.