About the study

Non-communicable diseases (NCDs), also known as chronic diseases, tend to be of long duration and are the result of a combination of factors

Cardiovascular diseases

Chronic Respiratory Diseases

Diabetes

Cancer

What Are Non-Communicable Diseases (NCDs)?

  • NCDs are medical conditions that are not caused by infectious agents and cannot be spread from one person to another.
  • They are chronic diseases that usually last for a long time and progress slowly.
  • Common examples include:
    • Cardiovascular diseases such as heart attacks and strokes
    • Diabetes mellitus
    • Cancers (e.g., lung, breast, cervical)
    • Chronic respiratory diseases like asthma and chronic obstructive pulmonary disease (COPD)
  • Other significant conditions include mental health disorders, chronic kidney disease, and neurological disorders (WHO, 2025).

Risk Factors for NCDs

  • Tobacco use: Smoking and tobacco chewing increase risks, especially for lung cancer, heart disease, and COPD.
  • Unhealthy diet: High intake of salt, sugar, saturated fats, and low fruit and vegetable consumption.
  • Physical inactivity: Sedentary lifestyle contributes to obesity, hypertension, and insulin resistance.
  • Harmful use of alcohol: Excessive alcohol intake increases the risk of liver disease, some cancers, and hypertension.
  • Environmental factors: Air pollution and exposure to toxic substances contribute to respiratory and cardiovascular diseases (Vichitkunakorn et al., 2025).

Modifiable Risk Factors:

  • Modifiable behaviors, such as tobacco use, physical inactivity, unhealthy diet, and the harmful use of alcohol, all increase the risk of NCDs (WHO, 2025).
  • Tobacco accounts for over 7.2 million deaths every year (including from the effects of exposure to second-hand smoke) and is projected to increase markedly over the coming years (WHO, 2025).
  • 4.1 million annual deaths have been attributed to excess salt/sodium intake (WHO, 2025).
  • More than half of the 3.3 million annual deaths attributable to alcohol use are from NCDs, including cancer (WHO, 2025).
  • 1.6 million deaths annually can be attributed to insufficient physical activity (WHO, 2025).

Non-Modifiable Risk Factors:

  • Age: As we age our risk of high BP increases. This is due to changes in the heart and blood vessels, whereby there is a loss of elasticity in the tissues found in our arteries. This loss of elasticity results in stiffening and a reduced ability to stretch, leading to increased BP.
  • Genetics/Family History: Genetic predisposition plays a role in diseases like diabetes, hypertension, breast cancer, and some heart diseases. Family history can guide early screening (Peltzer et al., 2024).
  • Gender: Some diseases are more common in one gender; for example, breast cancer is predominant in women, and prostate cancer in men.
  • Ethnicity: People of African and Black Caribbean descent have an increase in the risk of high BP . This is said to be down to genetic predisposition that increases sensitivity to salt in the diet by as little as 1 gram of extra salt per day can increase systolic BP, the pressure exerted on blood vessels when the heart contracts, by as little as much as 5mmHg; the unit of measurement that used when determining BP.

National Program for Prevention and Control of Cancer, Diabetes,
CVD and Stroke (NPCDCS)

  • Prevent and control common NCDs through behaviour and life style changes,
  • Provide early diagnosis and management of common NCDs,
  • Build capacity at various levels of health care for prevention, diagnosis and treatment of common NCDs,
  • Train human resource within the public health setup viz doctors, paramedics and nursing staff to cope with the increasing burden of NCDs, and
  • Establish and develop capacity for palliative & rehabilitative care.

Quick Stats

States Covered

Delhi, Chennai, Dehradun, Gangtok

4
Urban sites

Participants

Enrolled sample size

2,400
Consented & randomized

Study Arms

Digital, WHO PEN, Control

3
Cluster RCT

Follow-up

Primary endpoint window

12 Months
Quarterly touchpoints