Congenital heart diseaseCross-sectional study

Use of new paediatric VO2max reference equations to evaluate aerobic fitness in overweight or obese children with congenital heart disease

Eur J Prev CardiolPublished

  • Cross-sectional study
  • controlled
  • matched comparisons

Authors' conclusion

As opposed to the existing linear models, the new paediatric VO2max Z-score equations can discriminate the aerobic fitness of obese/overweight children with CHD from that of obese/overweight children without any chronic disease.

Study context

Population
Children with body mass index (BMI) > 85th percentile undergoing cardiopulmonary exercise test (CPET)54% boys
Participants
344 children
Exposure
CHD vs Controls
  • CHDn = 100
  • Controlsn = 244reference
Outcome
Aerobic fitness by paediatric VO2max Z-score reference equations

Main finding

As reported in the abstract

VO2max Z-score

CHD

−0.43

mean · SD 1.27

Controls

−0.01

mean · SD 1.09

P = 0.02

Observational data: associations, not effects.

Further findings

Impaired aerobic fitness (Z-score equations) · matched controls

P = 0.02

Complex CHD at risk of impaired aerobic fitness

Z-score equations identified univentricular heart and right outflow tract anomalies as at risk

Aerobic fitness by Cooper's weight- and height-based linear equations

No significant group differences

Original publication

Use of new paediatric VO2max reference equations to evaluate aerobic fitness in overweight or obese children with congenital heart disease. Eur J Prev Cardiol. Published 14 June 2023. doi:10.1093/eurjpc/zwad201

Summarised from the published abstract; every number is checked against it