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Published on: December 6, 2016
Racial Disparity in Residual Sleep Apnea After Adenotonsillectomy
Shannon D Fayson1, Aleda M Leis2, Susan L Garetz1
1Department of Otolaryngology, Head & Neck Surgery, Mott Children's Hospital, University of Michigan Medical Center, Ann Arbor, Michigan, USA.
Insights
Black children with mild-to-moderate sleep apnea have higher residual obstructive sleep apnea risk post-adenotonsillectomy, especially if nonobese. Obesity modifies this risk, with nonobese Black children facing significantly greater odds of residual sleep apnea.
Area of Science:
- Pediatric Sleep Medicine
- Otolaryngology
- Health Disparities Research
Background:
- Black children exhibit a higher incidence of residual obstructive sleep apnea (OSA) following adenotonsillectomy compared to non-Black children.
- Understanding the factors contributing to this racial disparity in post-adenotonsillectomy OSA is crucial for targeted interventions.
Purpose of the Study:
- To investigate the role of child-level and socioeconomic factors in the association between Black race and residual obstructive sleep apnea after adenotonsillectomy.
- To identify potential mediators, confounders, or effect modifiers in this disparity.
Main Methods:
- Secondary analysis of data from the Childhood Adenotonsillectomy Trial, including 224 children aged 5-9 with mild-to-moderate OSA.
- Logistic regression and mediation analysis were employed to assess the association between race, various risk factors, and residual OSA 6 months post-surgery.
Main Results:
- Black children had 2.7 times greater odds of residual OSA post-adenotonsillectomy, adjusted for baseline factors.
- Obesity significantly modified this association; nonobese Black children showed a 4.9-fold increased likelihood of residual OSA compared to non-Black children.
- No significant mediation was found for the tested child-level or socioeconomic factors.
Conclusions:
- Obesity acts as a significant effect modifier in the relationship between Black race and residual OSA after adenotonsillectomy for mild-to-moderate cases.
- The increased risk of residual OSA in Black children is primarily observed in the nonobese subgroup, highlighting the complex interplay of race and obesity.
Objective:
Black children have a higher risk of residual obstructive sleep apnea after adenotonsillectomy than non-Black children. We analyzed Childhood Adenotonsillectomy Trial data to better understand this disparity. We hypothesized that (1) child-level factors, such as asthma, smoke exposure, obesity, sleep duration, and (2) socioeconomic factors, such as maternal education, maternal health, and neighborhood disadvantage, may confound, modify, or mediate the association between Black race and residual obstructive sleep apnea after adenotonsillectomy.
Study Design:
Secondary analysis of a randomized controlled trial.
Setting:
Seven tertiary care centers.
Methods:
We included two hundred and twenty-four 5-to-9-year-olds with mild-to-moderate obstructive sleep apnea who underwent adenotonsillectomy. The outcome was residual obstructive sleep apnea 6 months after surgery. Data were analyzed with logistic regression and mediation analysis.
Results:
Of 224 included children, 54% were Black. Compared with non-Black children, Black children had 2.7 times greater odds of residual sleep apnea (95% confidence interval [CI]: 1.2, 6.1; p = .01), adjusted for age, sex, and baseline Apnea Hypopnea Index. There was significant effect modification by obesity. Among obese children, there was no association between Black race and outcome. However, nonobese Black children were 4.9 times as likely to have residual sleep apnea than non-Black children (95% CI: 1.2, 20.0; p < 0.01). There was no significant mediation by any of the child-level or socioeconomic factors tested.
Conclusion:
There was substantial effect modification by obesity on the association between Black race and residual sleep apnea after adenotonsillectomy for mild-to-moderate sleep apnea. Black race was associated with poorer outcome among nonobese but not obese children.
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