A study of risk factors for obesity in children with asthma

A study investigating the risk factors for obesity in children with asthma: The Obesity Risk factors in Children with Asthma (ORCA) study.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ANZCTR

Registry ID

ACTRN12611000422921

Acronym

ORCA

Enrollment

Registered

2011-04-21

Start date

2011-03-21

Completion date

2012-07-31

Last updated

2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Obesity and asthma are two of the most common conditions affecting Australian children and adolescents. Obesity is higher in children with asthma compared to children without asthma. We propose that children with asthma may have a higher prevalence of risk factors for obesity, namely increased sleep disturbance, poor dietary and physical activity patterns and altered resting energy expenditure.

Interventions

This is a cross-sectional study. Patients referred to the Pediatric Sleep Unit, John Hunter Hospital for a polysomnography (sleep study) will be recruited. In addition to the polysomnography recording, data will be collected from eligible participants, including: resting energy expenditure (indirect calorimetry), dietary and physical activity data (questionnaires), lung function (spirometry), and levels of appetite hormones (blood sample). The assessment session will take approximately 1.5hrs.

Eligibility

Sex/Gender

All

Age

7 Years to 17 Years

Healthy volunteers

Yes

Inclusion criteria

age 7-17yo non-obese (BMI z-score <1.96)

Exclusion criteria

obesity respiratory disease other than asthma medications that alter sleep cardiovascular / liver/ renal disease congenital malformations or conditions that may affect sleep

Outcome results