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Body weight status and obstructive sleep apnea in children

International Journal of Obesity volume 36, pages 920–924 (2012)Cite this article

Subjects

Abstract

Objective:

The relationship between weight status, adenotonsillar hypertrophy and obstructive sleep apnea (OSA) in children has not yet been well studied. As the sleep parameters may show a disparity in different weight statuses, this study examined the relationship between the data of over-night polysomnography and different weight statuses, as well as the impact of adenotonsillar hypertrophy on children with OSA.

Methods:

Children with sleep disturbances were recruited from our clinics. Standard physical examinations, history taking, lateral neck roentgenography, and full-night polysomnography were obtained. Children were divided into four groups based on the age- and gender-corrected body mass index (BMI): underweight, normal weight, overweight and obese. An adenoidal/nasopharyngeal ratio of more than 0.67 was considered adenoidal hypertrophy. Tonsillar hypertrophy was defined as having Grade III tonsils or above.

Results:

From July 2006 to January 2009, 197 children were included in this study. Obese children had a significantly higher apnea–hypopnea index (AHI), obstructive apnea index and lower minimum oxygen saturation (MinSaO2) than those of the other groups. Underweight children had the second highest AHI. A negative correlation was also found between BMI z scores and MinSaO2 (r=−0.194; P=0.007). Children with tonsillar hypertrophy (P=0.001) were associated with a higher risk of having OSA. The risk of having OSA was significantly higher in obese children (P=0.001) and underweight children (P=0.043) than in those with a normal weight.

Conclusion:

Obesity, underweight status and tonsillar hypertrophy are associated with children having OSA, and obese children have a significantly higher risk than children with underweight status.

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Acknowledgements

We thank the staff of the Center of Sleep Disorder, National Taiwan University Hospital for their technical support.

Author information

Authors and Affiliations

  1. Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan

    K-T Kang & W-C Hsu

  2. Department of Otolaryngology, Department of Health, Taipei Hospital, New Taipei City, Taiwan

    K-T Kang

  3. Sleep Center, National Taiwan University Hospital, Taipei, Taiwan

    P-L Lee & W-C Hsu

  4. Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

    P-L Lee

  5. Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan

    W-C Weng

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  1. K-T Kang
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  2. P-L Lee
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Correspondence to W-C Hsu.

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Kang, KT., Lee, PL., Weng, WC. et al. Body weight status and obstructive sleep apnea in children. Int J Obes 36, 920–924 (2012). https://doi.org/10.1038/ijo.2012.5

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  • DOI: https://doi.org/10.1038/ijo.2012.5

Keywords

  • weight status
  • obese
  • underweight
  • obstructive sleep apnea
  • polysomnography
  • children

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