What was the target reduction in child mortality rates set by the Millennium Development Goals (MDGs) between 1990 and 2015?
Most important component of level of living is
Which of the following best defines the concept of 'Quality of Life'?
Which of the following conditions does not primarily benefit from secondary level prevention?
At what age is the BCG vaccination administered in India?
A person has lost his leg in an accident and is unable to walk. This condition is classified as -
Randomization is done to reduce?
What is a limitation of the case fatality rate?
Which of the following statements about incidence is false?
India started 2-dose vaccination strategy for measles, in -
NEET-PG 2013 - Community Medicine NEET-PG Practice Questions and MCQs
Question 11: What was the target reduction in child mortality rates set by the Millennium Development Goals (MDGs) between 1990 and 2015?
- A. Half
- B. Two-thirds (Correct Answer)
- C. One-fourth
- D. One-third
Explanation: ***Two-thirds*** - The **Millennium Development Goal 4 (MDG 4)** specifically aimed to **reduce child mortality by two-thirds** among children under five years old between 1990 and 2015. - This target focused on improving maternal and child health outcomes globally. *Half* - Reducing child mortality by half was not the specific target set by MDG 4 for the 1990-2015 period. - While improvements were sought, the ambition was a more substantial reduction. *One-fourth* - A reduction of one-fourth would have been a significantly lower target than what was ultimately set and pursued by the MDGs. - The goals were designed to be ambitious yet achievable. *One-third* - Reducing child mortality by one-third falls short of the actual target established by the MDGs. - The international community aimed for a greater impact on child survival rates.
Question 12: Most important component of level of living is
- A. Education
- B. Housing
- C. Health
- D. Occupation (Correct Answer)
Explanation: ***Occupation*** - **Occupation** is the most important component of the level of living as it is the primary determinant of **income**, which forms the economic foundation of the level of living. - In Community Medicine, "level of living" is an **objective economic indicator** primarily measured by income and consumption patterns, distinguishing it from the broader concept of "quality of life." - A stable and remunerative occupation ensures regular income, which directly enables individuals to afford basic necessities (food, clothing, shelter) and access other essential resources like healthcare and education. - Occupation also confers social status and determines the standard of living that an individual or family can maintain. *Education* - While **education** is crucial for human development and enhances future opportunities, it serves as a means to achieve better employment rather than being a direct component of the level of living itself. - Education's impact on living standards is realized primarily through its influence on occupational opportunities and earning potential. *Housing* - **Housing** is an important indicator of living standards and reflects the level of living, but the quality and affordability of housing are dependent on income derived from occupation. - It is more of an outcome of the level of living rather than its primary determinant. *Health* - **Health** is essential for well-being and productivity, but in the context of "level of living" as an economic measure, it is often a consequence of adequate income and access to resources (which stem from occupation) rather than the primary component. - Good health enables productivity, but health status alone does not define the economic level of living without associated income security.
Question 13: Which of the following best defines the concept of 'Quality of Life'?
- A. Standard of living
- B. Level of living
- C. Subjective feeling of well being (Correct Answer)
- D. None of the above
Explanation: ***Subjective feeling of well being*** - **Quality of Life** is primarily a **subjective measure**, reflecting an individual's personal perception of their well-being and satisfaction with various aspects of their life. - It encompasses physical health, psychological state, social relationships, personal beliefs, and their relationship to their environment. *Standard of living* - **Standard of living** typically refers to the degree of wealth and material comfort available to a person or community. - This is an **objective, economic measure** and does not fully capture the subjective, multi-dimensional aspects of well-being. *Level of living* - The **level of living** is closely related to the standard of living, focusing on the actual conditions of life experienced by individuals, often in terms of material possessions, housing, and access to services. - Like standard of living, it is more about **objective and measurable aspects** of life rather than subjective feelings. *None of the above* - This option is incorrect because "Subjective feeling of well being" accurately defines **Quality of Life**. - **Quality of Life** is a complex, multi-faceted concept that integrates both objective and subjective factors, with the subjective feeling of well-being being central to its definition.
Question 14: Which of the following conditions does not primarily benefit from secondary level prevention?
- A. Coronary heart disease
- B. Leprosy
- C. TB
- D. None of the options (Correct Answer)
Explanation: ***None of the options*** - This is the **correct answer** because all three conditions listed (Coronary heart disease, TB, and Leprosy) DO significantly benefit from **secondary prevention** strategies. - The question uses negation ("does not"), asking which condition does NOT benefit from secondary prevention. - Since all three diseases benefit from secondary prevention, the answer is "None of the options." **Why each condition DOES benefit from secondary prevention:** *Coronary Heart Disease (CHD)* - **Secondary prevention** includes screening for risk factors (hypertension, hyperlipidemia, diabetes), early detection through ECG and cardiac biomarkers, and prompt intervention. - Post-event management with antiplatelets, statins, beta-blockers, and lifestyle modifications prevents recurrence and reduces mortality. - Early detection and treatment of risk factors halt disease progression and prevent complications. *Tuberculosis (TB)* - **Secondary prevention** is crucial through **early case detection** (contact tracing, active case finding, screening high-risk populations) and **prompt initiation of antitubercular therapy**. - Early diagnosis via sputum microscopy, GeneXpert, and chest X-ray prevents disease progression, reduces transmission, and prevents complications like miliary TB or TB meningitis. - Timely treatment ensures cure and prevents development of drug resistance. *Leprosy* - **Secondary prevention** involves **active case detection through surveys** and **prompt multi-drug therapy (MDT)**. - Early diagnosis and treatment prevent irreversible nerve damage, deformities, and disabilities. - Reduces transmission in the community and prevents progression to advanced stages.
Question 15: At what age is the BCG vaccination administered in India?
- A. At birth (Correct Answer)
- B. 1 year
- C. 2 years
- D. 6 weeks
Explanation: ***At birth*** - In India, the **BCG vaccine** is routinely administered to infants **at birth** or as early as possible thereafter as per the **Universal Immunization Programme (UIP)**. - This early vaccination aims to provide protection against **severe forms of tuberculosis (TB)**, particularly **tuberculous meningitis** and **disseminated (miliary) TB** in young children. - Early administration is crucial as infants are at highest risk of developing severe TB if exposed. *Incorrect: 1 year* - While other vaccinations might be given at 1 year (such as MMR), the BCG vaccine is specifically recommended at or soon after birth. - Delaying BCG vaccination until 1 year increases the risk of early exposure to TB before immunity can be established, defeating its protective purpose. *Incorrect: 2 years* - The recommended schedule for BCG vaccination in India does not include administration at 2 years of age. - By 2 years, potential exposure to TB may have already occurred, and the vaccine's efficacy in preventing severe forms of the disease would be compromised. *Incorrect: 6 weeks* - At 6 weeks, other vaccines like OPV, DPT, Hepatitis B, Hib, and Rotavirus are administered as part of the UIP schedule. - BCG is specifically given at birth, not at 6 weeks, to provide early protection against severe childhood tuberculosis.
Question 16: A person has lost his leg in an accident and is unable to walk. This condition is classified as -
- A. Disability (Correct Answer)
- B. Medical condition
- C. Physical limitation
- D. Mobility challenge
Explanation: ***Disability*** - The loss of a limb leading to inability to walk is classified as a **disability** because it significantly impairs a major life activity. - According to the **WHO International Classification of Functioning, Disability and Health (ICF)**, disability is an **umbrella term** encompassing impairments (loss of limb), activity limitations (inability to walk), and participation restrictions. - The scenario describes both an **impairment** (anatomical loss) and an **activity limitation** (functional consequence), which together constitute a **disability**. *Medical condition* - While the accident caused a medical condition (trauma, amputation), the term "medical condition" describes the **disease or injury state** itself, not its functional impact. - The question asks for the **classification** of the inability to walk, which is a functional consequence, not the primary medical diagnosis. *Physical limitation* - This is a **descriptive term** for restricted physical capacity but not a standard **classification** in public health terminology. - In the WHO ICF framework, this would fall under "activity limitation," which is a component of disability rather than a separate classification. *Mobility challenge* - This is a colloquial or lay term describing the **difficulty in moving** but lacks the specificity of formal medical classification. - While accurate descriptively, it does not represent the **standardized terminology** used in Community Medicine and rehabilitation frameworks.
Question 17: Randomization is done to reduce?
- A. Recall bias
- B. Selection bias (Correct Answer)
- C. Berksonian bias
- D. Reporting bias
Explanation: ***Selection bias*** - **Randomization** ensures that each participant has an equal chance of being assigned to any study group, which helps to distribute both known and unknown confounding factors evenly. - This process minimizes **selection bias** by promoting comparability between groups, making it more likely that any observed differences are due to the intervention rather than pre-existing differences. *Recall bias* - **Recall bias** occurs when there are systematic differences in the way participants remember or report past exposures or events, often seen in retrospective studies. - While randomization helps control for confounding, it does not directly prevent participants from inaccurately recalling information. *Berksonian bias* - **Berksonian bias** is a form of selection bias where the probability of being admitted to a hospital (or selected into a study) is affected by the presence of a co-morbidity, leading to a distorted association between diseases. - Randomization aims to balance characteristics *within* the study groups once participants are recruited, but it doesn't address biases related to the initial selection into the study population from a larger source. *Reporting bias* - **Reporting bias** refers to selective revealing or suppression of information, either by study participants (e.g., social desirability bias) or by researchers (e.g., only reporting positive findings). - Randomization helps ensure internal validity by creating comparable groups, but it does not prevent individuals from selectively reporting outcomes or experiences.
Question 18: What is a limitation of the case fatality rate?
- A. Not useful in acute infectious disease
- B. Not related to virulence
- C. Time period not specified (Correct Answer)
- D. It is not related to survival rate
Explanation: ***Time period not specified*** - The **case fatality rate (CFR)** is sometimes presented without a clear time frame, making it difficult to compare across different studies or diseases. - A CFR calculated over **24 hours** is vastly different from one calculated over **30 days** or **one year**, yet both could be presented simply as "CFR" *Not useful in acute infectious disease* - The CFR is highly **useful** in acute infectious diseases, as it directly measures the **severity** and immediate impact of an outbreak. - It helps public health officials understand the **lethality** of an infectious agent and aids in resource allocation and intervention strategies. *Not related to virulence* - **Case fatality rate** is directly related to **virulence**, as it reflects the proportion of affected individuals who die from the disease. - A higher CFR indicates a more **virulent pathogen** or a more severe disease process. *It is not related to survival rate* - The **case fatality rate** is inherently linked to the **survival rate**; they are complementary measures. - If the CFR is X%, then the associated survival rate is (100 - X)%, representing the proportion of cases that do not die from the disease.
Question 19: Which of the following statements about incidence is false?
- A. Does not include unit of time (Correct Answer)
- B. It is a rate
- C. Numerator includes new cases
- D. Denominator includes population at risk
Explanation: ***Does not include unit of time*** - This statement is false because **incidence** is defined as the number of **new cases** of a disease over a specific period of time in a population at risk. - Therefore, it inherently includes a **unit of time** (e.g., per year, per month), making this option incorrect as a characteristic of incidence. *It is a rate* - **Incidence is a rate** because it quantifies the speed at which new cases of a disease occur within a population. - It expresses the number of new events (cases) per unit of population at risk over a specified time period. *Numerator includes new cases* - The **numerator of incidence** specifically counts the number of **new cases** of a disease that develop during a defined observation period. - This distinguishes it from prevalence, which includes all existing cases. *Denominator includes population at risk* - The **denominator for incidence** comprises the **population at risk** of developing the disease during the observation period. - Individuals who already have the disease or are immune are typically excluded from the denominator.
Question 20: India started 2-dose vaccination strategy for measles, in -
- A. 2008
- B. 2009
- C. 2010 (Correct Answer)
- D. 2011
Explanation: ***2010*** - India implemented the **two-dose measles vaccination strategy** as part of its Universal Immunization Program starting in **2010**. - This decision was based on recommendations to improve immunity and reduce measles incidence, moving from a single-dose to a more effective **two-dose schedule**. *2008* - While important immunization initiatives were ongoing, the specific policy of a **two-dose measles vaccination strategy** had not yet been introduced in India during 2008. - At this time, the focus was primarily on ensuring high coverage of the **first dose** of measles vaccine. *2009* - The year 2009 saw continued efforts to strengthen the Universal Immunization Program, but the official launch of the **two-dose measles vaccination strategy** in India occurred later. - Discussions and planning for the transition were likely underway, but implementation began in the subsequent year. *2011* - By 2011, the **two-dose measles vaccination strategy** was already being implemented across India, having been introduced in 2010. - This year marked a period of expanding coverage and consolidation of the new 2-dose schedule rather than its initial introduction.