Key Facts and Data Points

  • Prevalence: Nearly doubled globally from 2000 to 2020.
  • Diagnosis: Based on age, sex and height‑specific percentile charts (≥95th percentile) rather than adult cut‑offs.
  • Nature: In children, hypertension is predominantly secondary (renal, adrenal, vascular disorders) unlike primary hypertension in adults.
  • Major Modifiable Risk Factor: Childhood obesity – rapid weight gain and central adiposity.
  • Lifestyle Contributors: High‑salt & ultra‑processed foods, sedentary lifestyle, excessive screen time, noise & air pollution, academic stress.
  • Health Impacts: Increases lifetime risk of coronary heart disease, stroke, type‑2 diabetes, chronic kidney disease, early vascular damage and arterial stiffening.

Background and Context

  • Rapid urbanisation in low‑ and middle‑income countries has altered dietary patterns and physical activity levels among children.
  • The National Programme for Prevention and Control of Cancer, Diabetes, Cardiovascular Diseases and Stroke (NPCDCS) currently focuses on adults; paediatric hypertension remains under‑screened.
  • WHO’s Global Action Plan for the Prevention and Control of NCDs 2013‑2020 emphasizes early detection but lacks specific paediatric guidelines.

Significance for India / Governance / Policy

  • Public Health Burden: Early‑onset hypertension can strain the health system with premature CVD and renal disease.
  • Policy Gap: Need for inclusion of routine BP screening in school health programmes and the Integrated Child Development Services (ICDS).
  • Preventive Strategy: Promotion of healthy school meals, reduction of salt in processed foods, and creation of safe spaces for physical activity.
  • Research & Surveillance: Strengthening the National Family Health Survey (NFHS) to capture paediatric BP data.

Related Constitutional / Legal Provisions

  • Article 21 – Right to health; obligates the State to ensure preventive health services for children.
  • National Health Policy 2017 – Calls for comprehensive primary health care, which can incorporate BP screening for children.

Prevention and Management

  • Lifestyle Modification: Reduced salt & sugar intake, avoidance of ultra‑processed foods, regular physical activity (≥60 min/day), adequate sleep (9‑11 hrs for adolescents), stress management.
  • Screening: Annual BP measurement in schools using age‑sex‑height percentiles.
  • Medical Management: Address secondary causes; pharmacotherapy only after lifestyle measures fail and under specialist care.

Quick Facts for Prelims

  • Diagnosis cut‑off: ≥95th percentile for age, sex, height.
  • Most common secondary cause: Renal parenchymal disease.
  • Primary modifiable risk factor: Obesity.
  • Global trend: ~2× increase (2000‑2020).

Prepared for UPSC – GS Paper 2 (Health & Disease)