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  • Title: Familial risk of sleep-disordered breathing.
    Author: Lundkvist K, Sundquist K, Li X, Friberg D.
    Journal: Sleep Med; 2012 Jun; 13(6):668-73. PubMed ID: 22538192.
    Abstract:
    OBJECTIVE: To estimate the incidence of hospitalization for paediatric obstructive sleep apnoea syndrome (OSAS) or sleep-disordered breathing (SDB) caused by adenotonsillar or tonsillar hypertrophy without infection in children with a parent affected by OSAS. PATIENTS AND METHODS: Using the MigMed database at Lund University, hospital data on all children aged 0-18 years in Sweden between 1997 and 2007 (total of 3 million individuals) were used to identify all first hospital admissions for OSAS or either adenotonsillar or tonsillar hypertrophy. Next, individuals were categorized as either having or not having a parent affected by OSAS. Standardized incidence ratios (SIRs) with 95% confidence intervals (CIs) were estimated for boys and girls with a parent affected by OSAS. Children with OSAS or adenotonsillar or tonsillar hypertrophy without a parent affected by OSAS acted as the reference group (SIR=1). RESULTS: After accounting for socio-economic status, age, and geographic region, the SIRs of OSAS in boys and girls with a parent affected by OSAS were 3.09 (95% CI 1.83-4.90) and 4.46 (95% CI 2.68-6.98), respectively. The SIRs of adenotonsillar or tonsillar hypertrophy in boys and girls with a parent affected by OSAS were 1.82 (95% CI 1.54-2.14) and 1.56 (95% CI 1.30-1.87), respectively. CONCLUSION: This study indicates familial clustering of sleep-disordered breathing, which is important information for clinicians.
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