Question:
Rural and urban difference in prevalence is seen in all of the following, except:
Rural and urban difference in prevalence is seen in all of the following, except:
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Which disease is driven by poverty and crowding present in both rural and urban areas?
Updated On: Jun 24, 2026
- Lung cancer
- Tuberculosis
- Mental illness
- Chronic bronchitis
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The Correct Option is B
Solution and Explanation
Step 1: Understand the question.
We must pick the condition whose prevalence does NOT differ much between rural and urban populations. The other three show a clear urban or rural gradient.
Step 2: Examine each option.
Lung cancer is more common in urban areas because of higher cigarette smoking, air pollution and industrial exposures, so it shows an urban-rural difference.
Mental illness patterns differ between urban and rural settings, with urban living linked to more stress related and certain psychiatric disorders, so a difference exists.
Chronic bronchitis is linked to air pollution and smoking, again giving an urban predominance, so a difference exists.
Step 3: Identify the exception.
Tuberculosis is widely prevalent across both rural and urban India and is driven by poverty, overcrowding and undernutrition that exist in both settings. Its prevalence does not show a consistent rural versus urban gap, so it is the exception.
Answer: Option B.
We must pick the condition whose prevalence does NOT differ much between rural and urban populations. The other three show a clear urban or rural gradient.
Step 2: Examine each option.
Lung cancer is more common in urban areas because of higher cigarette smoking, air pollution and industrial exposures, so it shows an urban-rural difference.
Mental illness patterns differ between urban and rural settings, with urban living linked to more stress related and certain psychiatric disorders, so a difference exists.
Chronic bronchitis is linked to air pollution and smoking, again giving an urban predominance, so a difference exists.
Step 3: Identify the exception.
Tuberculosis is widely prevalent across both rural and urban India and is driven by poverty, overcrowding and undernutrition that exist in both settings. Its prevalence does not show a consistent rural versus urban gap, so it is the exception.
Answer: Option B.
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