Diet and Non-Communicable Diseases — MCQs
The non-modifiable risk factor for hypertension is -
What is the maximum age limit for children covered under the Integrated Child Development Services (ICDS) scheme?
All are modifiable risk factors except
Primordial prevention in myocardial infarction is all except -
All of the following are risk factors for gastric cancer except?
Obesity predisposes to all, except ?
Recommended interventions to reduce the incidence of coronary artery disease include the following except which of the following?
Which condition has the maximum relative risk attributed to obesity?
All of the following are global targets for WHO Global Action Plan (2013–2020) for Prevention and Control of NCDs, EXCEPT:
What is the key characteristic of Body Mass Index (BMI) considerations for the Asian population?
Diet and Non-Communicable Diseases Indian Medical PG Practice Questions and MCQs
Question 1: The non-modifiable risk factor for hypertension is -
- A. Environment stress
- B. Obesity
- C. Salt intake
- D. Age (Correct Answer)
Explanation: ***Age*** - Age is a **non-modifiable** risk factor because it is an inherent biological process that cannot be changed. [3] - The risk of developing **hypertension** generally increases with advancing age due to arterial stiffening and other physiological changes. [1] *Environment stress* - **Environmental stress** is considered a **modifiable** risk factor because individuals can learn coping mechanisms or make lifestyle changes to reduce its impact. - Chronic stress can lead to **sympathetic nervous system activation**, contributing to elevated blood pressure. [4] *Obesity* - **Obesity** is a **modifiable** risk factor, as it can be directly addressed through diet, exercise, and other lifestyle interventions. [2] - It increases the risk of hypertension by fostering **insulin resistance**, **inflammation**, and increased **cardiac output**. *Salt intake* - **Salt intake** is a **modifiable** risk factor as it can be controlled through dietary choices. [2] - Excessive sodium consumption can lead to **fluid retention** and increased blood volume, thereby raising blood pressure.
Question 2: What is the maximum age limit for children covered under the Integrated Child Development Services (ICDS) scheme?
- A. 6 years (Correct Answer)
- B. 10 years
- C. 4 years
- D. 8 years
Explanation: ***6 years*** - The **Integrated Child Development Services (ICDS) scheme** is primarily designed to address the nutritional, health, and developmental needs of children under the age of 6. - This age limit ensures that critical early childhood development—from infancy through preschool—is supported with interventions like **supplementary nutrition**, **immunization**, health check-ups, and pre-school education. *10 years* - This age range would extend coverage beyond the **critical early childhood development period** that ICDS focuses on. - Programs for children aged 6 to 10 years typically fall under primary education or other health initiatives, not the targeted ICDS framework. *4 years* - This is **insufficient** as ICDS is specifically designed to cover the entire **0-6 years age group**, ensuring comprehensive early childhood development support. - Limiting coverage to 4 years would exclude preschool-aged children (4-6 years) from crucial developmental interventions during a critical growth period. *8 years* - An 8-year age limit would also exceed the primary target group for ICDS, which emphasizes **early childhood intervention** up to 6 years. - Children aged 6 to 8 are usually enrolled in primary school, and their specific needs are often addressed through educational and school-based health programs.
Question 3: All are modifiable risk factors except
- A. Weight
- B. Cigarette smoking
- C. Diabetes
- D. Personality (Correct Answer)
Explanation: ***Personality*** - **Personality traits**, such as Type A behavior, are **not directly modifiable** through lifestyle changes or medical interventions. - While coping mechanisms can be learned, the underlying personality structure is generally considered a **non-modifiable risk factor** for various health outcomes. *Weight* - **Weight** is a **modifiable risk factor** that can be changed through diet, exercise, and other lifestyle interventions. - Maintaining a **healthy weight** reduces the risk of numerous diseases, including cardiovascular disease and diabetes. *Cigarette smoking* - **Cigarette smoking** is a highly **modifiable risk factor** that can be completely eliminated by quitting. - Smoking cessation significantly reduces the risk of cancer, heart disease, and respiratory illnesses. *Diabetes* - **Established diabetes** is considered a **non-modifiable risk factor** for cardiovascular complications and other diseases in epidemiological classification. - While the **risk of developing diabetes** can be modified through lifestyle interventions, and **glycemic control** can be managed, the disease state itself once present is categorized as non-modifiable. - However, **Personality** is the more clearly non-modifiable factor among the options, as it represents an inherent trait rather than an acquired condition.
Question 4: Primordial prevention in myocardial infarction is all except -
- A. Change in life style
- B. Change in Nutritional habits
- C. Maintenance of normal body weight
- D. Screening for hypertension (Correct Answer)
Explanation: ***Screening for hypertension*** - **Screening for hypertension** falls under **primary prevention**, as it aims to detect and treat a risk factor in individuals who have already developed a predisposition to the disease. - **Primordial prevention** focuses on preventing the development of risk factors themselves, rather than detecting them once they've emerged. *Change in life style* - **Lifestyle changes** such as promoting regular physical activity and avoiding smoking are key components of **primordial prevention**, preventing the development of risk factors like obesity and hypertension. - These interventions aim to stop risk factors from even appearing in healthy populations. *Change in Nutritional habits* - Promoting **healthy nutritional habits** from an early age is a fundamental strategy in **primordial prevention**, aiming to prevent the development of conditions like obesity and hyperlipidemia. - This proactive approach seeks to establish healthy patterns before disease risk factors take hold. *Maintenance of normal body weight* - Encouraging and supporting the **maintenance of normal body weight** in the general population is a classic example of **primordial prevention**. - This prevents the emergence of obesity, a major risk factor for cardiovascular diseases like myocardial infarction.
Question 5: All of the following are risk factors for gastric cancer except?
- A. Diet high in pickled vegetables
- B. Smoking
- C. Helicobacter pylori infection
- D. Duodenal ulcer (Correct Answer)
Explanation: ***Duodenal ulcer*** - A history of **duodenal ulcers** is generally protective against gastric cancer, possibly due to the increased acid production in the duodenum or differences in the distribution of *H. pylori* strains [1]. - While *H. pylori* can cause both duodenal ulcers and gastric cancer, specific strains associated with duodenal ulcers may be less virulent in terms of oncogenic potential for the stomach [1]. *Diet high in pickled vegetables* - Diets high in **salted and pickled foods** are associated with an increased risk of gastric cancer. - These foods often contain **nitrosamines** and other carcinogenic compounds that can directly damage gastric mucosa. *Smoking* - **Smoking** is a well-established and significant risk factor for gastric cancer, increasing the risk by 1.5 to 2.5 times compared to non-smokers. - Carcinogens in tobacco smoke can reach the stomach mucosa, promoting cellular damage and malignant transformation. *Helicobacter pylori infection* - **Chronic *Helicobacter pylori* infection** is the strongest known risk factor for gastric cancer, particularly for the intestinal type [2]. - It causes chronic inflammation and atrophy of the gastric mucosa, leading to a cascade known as Correa's pathway (chronic gastritis → atrophic gastritis → intestinal metaplasia → dysplasia → carcinoma) [2].
Question 6: Obesity predisposes to all, except ?
- A. Diabetes
- B. Peptic ulcer disease (Correct Answer)
- C. Breast cancer
- D. Colon cancer
Explanation: ***Peptic ulcer disease*** - **Obesity** is generally **not considered a direct risk factor** for peptic ulcer disease; instead, factors like *H. pylori* infection and NSAID use are primary causes. - While comorbidities associated with obesity might indirectly influence gastric health, obesity itself doesn't directly predispose to ulcer formation. *Diabetes* - **Obesity**, particularly **abdominal obesity**, greatly increases the risk of **insulin resistance** and **Type 2 Diabetes Mellitus**. - Excess adipose tissue contributes to systemic inflammation and alters glucose metabolism. *Breast cancer* - **Obesity** is a significant risk factor for **postmenopausal breast cancer** due to increased estrogen production in adipose tissue. - It also promotes chronic inflammation, which can contribute to cancer development and progression. *Colon cancer* - **Obesity** is linked to an increased risk of **colorectal cancer** due to associated **insulin resistance**, chronic inflammation, and altered hormone levels. - These factors can stimulate cell proliferation and inhibit apoptosis in the colon.
Question 7: Recommended interventions to reduce the incidence of coronary artery disease include the following except which of the following?
- A. Reduce salt intake to < 5g per day.
- B. No alcohol consumption.
- C. Dietary cholesterol < 100 mg/1000kcal/d
- D. Fat intake < 20% of total energy. (Correct Answer)
Explanation: ***Fat intake < 20% of total energy.*** - While reducing unhealthy fat intake is crucial for cardiovascular health, recommending total fat intake to be less than 20% of total energy is generally **too restrictive** and not a standard recommendation for the general population. - Current guidelines focus on the *type* of fat (limiting saturated and trans fats) rather than a strict overall percentage, as healthy fats are essential for various bodily functions [3]. *Dietary cholesterol < 100 mg/1000kcal/d* - Reducing dietary cholesterol intake is a widely accepted recommendation to lower the risk of **coronary artery disease (CAD)**, as high cholesterol contributes to atherosclerosis [3]. - Limiting cholesterol intake to less than 100 mg per 1000 kcal per day aligns with strategies for managing blood lipid levels [1]. *Reduce salt intake to < 5g per day.* - Reducing salt intake to less than 5 grams per day is strongly recommended to lower **blood pressure**, a major risk factor for CAD [2]. - High sodium intake contributes to hypertension, which places increased strain on the cardiovascular system [2]. *No alcohol consumption.* - While excessive alcohol consumption is detrimental to cardiovascular health, a recommendation of **no alcohol consumption** is not universally made to reduce CAD risk. - Moderate alcohol intake (e.g., one drink per day for women, two for men) has been associated with a potential reduction in CAD risk in some studies, though this is debated.
Question 8: Which condition has the maximum relative risk attributed to obesity?
- A. Hypertension
- B. CHD
- C. DM (Correct Answer)
- D. Cancer
Explanation: ***DM*** - Obesity is a major risk factor for Type 2 Diabetes Mellitus (T2DM), with a **relative risk often exceeding 3-7 times that of normal-weight individuals**, and even higher for severe obesity. - The link is primarily due to **insulin resistance** caused by increased adipose tissue. *Hypertension* - Obesity significantly increases the risk of hypertension, with a relative risk typically in the range of **2 to 3 times higher** than normal-weight individuals. - The mechanisms involve increased **blood volume**, **sympathetic nervous system activity**, and **renal sodium reabsorption**. *CHD* - Obesity is a strong independent risk factor for Coronary Heart Disease (CHD), contributing to a relative risk of approximately **1.5 to 2.5 times higher** than normal weight. - It often acts by exacerbating other risk factors like **hypertension**, **dyslipidemia**, and **diabetes**. *Cancer* - Obesity is linked to various cancers, including endometrial, esophageal adenocarcinoma, renal cell, and breast cancer in postmenopausal women, with relative risks typically ranging from **1.2 to 2 times higher** for specific cancers. - The pathways include **chronic inflammation**, altered **hormone levels** (e.g., estrogen), and **insulin-like growth factor signaling**.
Question 9: All of the following are global targets for WHO Global Action Plan (2013–2020) for Prevention and Control of NCDs, EXCEPT:
- A. A 30% relative reduction in mean population intake of salt/sodium
- B. A 25% relative reduction in risk of premature mortality from cardiovascular diseases, cancer, diabetes and chronic respiratory diseases
- C. At least 10 % relative reduction in the harmful use of alcohol
- D. A 15% relative reduction in healthcare costs related to NCDs (Correct Answer)
Explanation: ***A 15% relative reduction in healthcare costs related to NCDs*** - While reducing healthcare costs is an important outcome of NCD prevention, it was **not explicitly stated as one of the nine global targets** in the WHO Global Action Plan (2013–2020) for the Prevention and Control of NCDs. - The targets primarily focused on **risk factor reduction and mortality reduction**, rather than direct cost reduction percentages. *A 30% relative reduction in mean population intake of salt/sodium* - This is one of the **specified global targets** of the WHO NCD Global Action Plan, aiming to reduce a significant dietary risk factor for cardiovascular diseases. - High sodium intake is a major contributor to **hypertension**, a leading risk factor for NCDs. *A 25% relative reduction in risk of premature mortality from cardiovascular diseases, cancer, diabetes and chronic respiratory diseases* - This represents the **overarching mortality reduction target** for the key NCDs, making it a central goal of the WHO action plan. - Reducing premature mortality is a direct measure of the **effectiveness of NCD prevention and control strategies**. *At least 10 % relative reduction in the harmful use of alcohol* - This is another **identified global target** within the WHO NCD Global Action Plan, recognizing alcohol as a major modifiable risk factor for NCDs. - Harmful alcohol use contributes to various NCDs, including **liver disease, cardiovascular disease, and certain cancers**.
Question 10: What is the key characteristic of Body Mass Index (BMI) considerations for the Asian population?
- A. Increased morbidity at lower values (Correct Answer)
- B. BMI cut-offs for obesity differ from international standards
- C. Increased morbidity at higher BMI values
- D. Obesity is defined as > 25 kg/m2
Explanation: ***Increased morbidity at lower values*** - Due to differences in body composition and fat distribution, Asian populations tend to experience **higher risks of developing obesity-related diseases** (e.g., type 2 diabetes, cardiovascular disease) at **lower BMI values** compared to non-Asian populations. - This increased morbidity at lower BMI values highlights the need for population-specific BMI cut-offs for health risk assessment. *BMI cut-offs for obesity differ from international standards* - While it is true that **BMI cut-offs for obesity differ for Asian populations**, this option does not fully describe *why* these cut-offs differ. - The difference in cut-offs is precisely *because* increased morbidity is seen at lower BMI values, making this option less specific than the correct answer. *Increased morbidity at higher BMI values* - While morbidity does increase at higher BMI values in all populations, this statement is **true for Caucasians and other populations**, but the defining characteristic for Asian populations is the *lower* BMI at which morbidity risk begins to significantly increase. - This option does not capture the unique aspect of BMI and health risks in the Asian population. *Obesity is defined as > 25 kg/m2* - For many Asian populations, a BMI of **> 25 kg/m²** is often used as the cut-off for **overweight**, not necessarily obesity, and **obesity is often defined at > 27.5 kg/m² or 30 kg/m² depending on the specific group**. - The international standard for obesity (BMI ≥ 30 kg/m²) is often considered too high for many Asian populations to capture risk effectively.
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