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Correlates of hypertension among urban Asian Indian adolescents
  1. Ruchika Goel1,
  2. Anoop Misra2,
  3. Sunil K Agarwal1,3,
  4. Naval Vikram4
  1. 1University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
  2. 2Department of Diabetes and Metabolic Disorders, Fortis Hospital, New Delhi, India
  3. 3Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
  4. 4Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
  1. Correspondence to Anoop Misra, Department of Diabetes and Metabolic Disorders, Fortis Hospital, Vasant Kunj, New Delhi 110070, India; anoopmisra{at}metabolicresearchindia.com

Abstract

Objective Primary hypertension has become increasingly common in children but remains largely understudied, underdiagnosed and undertreated. This study examines the relationship between hypertension in adolescents and various markers of obesity, serum lipid levels, fasting blood glucose (FBG), haemoglobin A1c (HbA1c) and family history of hypertension.

Design/settings A cross-sectional population-based study of 1022 students aged 14–19 years in New Delhi, India.

Main outcome/exposures Those with age, gender and height specific blood pressure >95th percentile (derived from study data) or >130/85 mm Hg were considered hypertensive. Various markers of obesity, FBG, HbA1c and serum lipid levels were divided into quartiles and the odds ratios of hypertension calculated for the highest quartiles with reference to the lowest.

Results Hypertension was seen in 65 (6.4%) adolescents (2.7% isolated systolic, 2.0% isolated diastolic and 1.7% both). The odds of having hypertension were higher for those in the highest versus lowest quartiles of various measures of obesity such as body mass index (OR 2.90; 95% CI 1.40 to 6.12) and waist circumference (OR 5.21; 95% CI 2.14 to 12.17). A parental history of hypertension was associated with diastolic hypertension in the child (OR 2.21; 95% CI 1.13 to 4.33); the odds ratio decreased after simultaneous adjustment for salt intake (OR 1.98; 95% CI 1.00 to 3.94). In a multivariable model with backward elimination, waist circumference and triglycerides were the strongest predictors of hypertension, further suggesting that the relationship is stronger with central than peripheral obesity.

Conclusion Hypertension in Asian Indian adolescents is associated with obesity, higher serum lipids and a family history of hypertension.

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Footnotes

  • Funding This study was funded by a grant from the Department of Science and Technology, Ministry of Science and Technology, Government of India, New Delhi.

  • Competing interests None.

  • Ethics approval This study was conducted with the approval of the Ministry of Education, Government of India, New Delhi, and the All India Institute of Medical Sciences, New Delhi, India.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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