Preterm birth and risk of hospitalisation for complex chronic conditions during childhood and adolescence

Gabriel Côté-Corriveau1,2,3, Juliette St-Georges4, Thuy Mai Luu2

  • 1Institut national de santé publique du Québec, Montreal, Quebec, Canada.

Insights

Preterm birth significantly increases the risk of hospitalization for complex chronic conditions in children up to age 16. These findings highlight the need for enhanced pediatric care for preterm infants throughout childhood.

Area of Science:

  • Pediatric Health
  • Neonatalogy
  • Public Health

Background:

  • Preterm birth is a major global health concern.
  • Children born preterm are at higher risk for long-term health issues.
  • Understanding the specific risks of complex chronic conditions is crucial for early intervention.

Purpose of the Study:

  • To investigate the association between preterm birth and subsequent hospitalisation for paediatric complex chronic conditions.
  • To quantify the risk across different degrees of prematurity and types of chronic disorders.

Main Methods:

  • A large cohort study of 1,269,745 children born in Quebec, Canada (2006-2022).
  • Classification of preterm birth: extreme (<28 weeks), very (28-31 weeks), and moderate (32-36 weeks).
  • Analysis of hospitalisation for 11 categories of complex chronic conditions up to age 16, using adjusted hazard ratios (HR) and 95% confidence intervals (CI).

Main Results:

  • Hospitalisation rates for complex chronic conditions were substantially higher in preterm infants (6.88 per 1000 person-years) compared to term infants (2.24 per 1000 person-years).
  • Preterm birth was linked to all studied complex chronic conditions, with the highest risks for respiratory (HR 4.64), cardiovascular (HR 3.68), and neurologic disorders (HR 3.48).
  • Increased risk was observed across all ages and degrees of prematurity, most pronounced in extremely preterm infants.

Conclusions:

  • Preterm birth is a significant risk factor for hospitalisation due to complex chronic conditions extending into adolescence.
  • Preterm children require ongoing, enhanced medical care throughout childhood and adolescence to manage these risks.
  • These findings underscore the importance of long-term follow-up and support for individuals born prematurely.
Abstract

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