NFHS-6 | National Family Health Survey 2023-24

Demographics

Maternal Health

Child Health & Nutrition

Women's Empowerment

Key Challenges Flagged

• Rising C-section rates
• Increasing obesity and non-communicable diseases (NCDs)
• Persistent child undernutrition despite improvements
• Breastfeeding initiation still below target
• Drop in some biomarker data collection (anaemia data removed this round)

MPMSU MBBS 3rd Year - Community Medicine

Demography Unit: Important Topics for 2026 Exam

🔴 HIGH PRIORITY (Most Frequently Asked - Long Questions)

1. Demographic Cycle (5 Stages)

• Stage 1 - High Stationary: High BR + High DR → population stationary (India till 1920)
• Stage 2 - Early Expanding: DR falls, BR unchanged → population grows (South Asia, Africa)
• Stage 3 - Late Expanding: DR declines further, BR begins to fall (India is HERE)
• Stage 4 - Low Stationary: Low BR + Low DR → population stationary (UK, Scandinavia)
• Stage 5 - Declining: BR < DR → population shrinks (Germany, Hungary)

2. Fertility-Related Statistics (All 14 - Formula + Definition)

Exam Tip: "Why is NRR superior to GRR?" - NRR accounts for female mortality before reproductive age, making it more realistic for measuring population replacement. This is an "Explain Why" type question.

3. Population Pyramid

• Definition, construction, and types (expansive, constrictive, stationary)
• India has an expansive pyramid (wide base) showing young population
• Used for planning healthcare, education, workforce needs

4. Mortality Rates (Measurement of Mortality)

• Crude Death Rate (CDR)
• Specific Death Rates (age, sex, cause)
• Infant Mortality Rate (IMR) - deaths <1 year / 1000 live births
• Under-5 Mortality Rate (U5MR)
• Neonatal Mortality Rate (NMR) - deaths in first 28 days
• Maternal Mortality Rate (MMR) and Maternal Mortality Ratio
• Standardized (Adjusted) Death Rates - direct and indirect methods
• Case Fatality Rate (CFR)
• Proportional Mortality Rate (PMR/PMRatio)

5. Demographic Characteristics of India (NFHS-6 Updated Data)

• Current population, growth rate
• TFR = 2.0 (NFHS-6, 2023-24), below replacement level 2.1
• Sex ratio (females per 1000 males)
• Literacy rates, urban-rural distribution
• Census data (decadal growth)

🟡 MEDIUM PRIORITY (Short Notes / 5-7 Mark Questions)

6. Sources of Demographic Data in India

• Population Census (decennial) - most comprehensive
• Registration of Vital Events (Civil Registration System - CRS)
• National Sample Survey (NSS)
• National Family Health Survey (NFHS)
• Sample Registration System (SRS)
• Ad hoc demographic studies

7. Family Planning - National Population Policy 2000

• Immediate objectives, medium-term, long-term goals
• National Population Policy 2000 - targets, Mission Parivar Vikas
• Eligible couples, target couples, Couple Protection Rate (CPR)
• CPR = currently 69.1% (NFHS-6)
• Small-family norm

8. Contraceptive Methods (Classification + Details)

• Barrier: Condom (male + female), Diaphragm, Vaginal sponge
• Chemical: Spermicides
• IUDs (1st, 2nd, 3rd generation - Lippes loop, Copper-T, LNG-IUS)
• Oral contraceptive pills (combined, progestin-only)
• Emergency contraception

• Vasectomy (conventional vs. NSV - No Scalpel Vasectomy)
• Tubectomy (Minilap, Laparoscopic)

Frequently asked: IUD types, mechanism of action, contraindications, side effects/complications of IUD (IUCD)

9. Factors Affecting Fertility

1. Age at marriage
2. Duration of married life
3. Spacing of children
4. Education
5. Economic status
6. Caste and religion
7. Nutrition
8. Family planning
9. Other factors (urbanization, employment of women)

10. World Population Trends

• Doubling time concept
• Growth rates and projections
• Demographic dividend

🟢 SHORT NOTES (3-5 Marks)

📝 Exam Strategy Tips

1. Long question (10-12 marks): Demographic cycle OR Fertility statistics OR Family planning in India are the most repeated
2. Always include current Indian data from NFHS-6 (2023-24) - examiners love updated figures
3. NRR vs GRR - classic "explain why" question - practice it
4. Population pyramid - always draw a labeled diagram
5. IUD complications - know the 7 side effects from Park's

Sample Registration System (SRS)

Source: Park's Textbook of Preventive and Social Medicine, Chapter 12

Definition

Background and History

• Initiated because the Civil Registration System (CRS) in India was grossly deficient, unreliable, and incomplete
• Funded initially with assistance from the Ford Foundation under the Third Five Year Plan
• One of the largest continuous demographic household sample surveys in the world

Why SRS Was Needed

1. Illiteracy and ignorance among the population
2. Lack of motivation for voluntary registration
3. Lack of uniformity in collection and compilation
4. Multiple registration agencies (health, panchayat, police, revenue)
5. Under-reporting, especially in rural areas

Key Feature: Dual Record System

Component 1 - Continuous Enumeration

• Done by a resident part-time enumerator posted in the sample unit
• Maintains:
  • Form 4 - Birth Record
  • Form 5 - Death Record
• Records ALL births and deaths continuously throughout the year
• Covers:
  1. Usual residents inside the sample unit
  2. Usual residents who died/delivered outside the unit
  3. In-migrants present and absent
  4. Visitors inside the sample unit (listed but not counted in rates)

Component 2 - Independent Half-Yearly Retrospective Survey

• Done by a full-time supervisor/investigator (different from enumerator)
• Conducted every 6 months independently
• Retrospectively identifies births and deaths
• Serves as a cross-check on the continuous enumeration

Matching Process (The Core Methodology)

1. Matching - Events from both sources are matched
2. Unmatched events - Those not found in one source are reverified in the field
3. Partially matched events - Also reverified
4. Final result = Unduplicated, correct count of all births and deaths

Sample Size and Coverage

Data Provided by SRS

SRS is the only source for annual, state-level estimates of IMR and fertility/mortality in India.

Organization / Administration

National Level:
Vital Statistics Division, Office of Registrar General, India (ORGI)
↓
State Level:
Directorate of Census Operations / State Vital Statistics Authorities
↓
Field Level:
Supervisor (full-time) → Enumerator (part-time, resident)

SRS vs Civil Registration System

Advantages of SRS

1. Self-evaluating - dual system catches errors automatically
2. Produces annual estimates (unlike census which is decennial)
3. Covers all states and UTs
4. Provides state-level data, not just national
5. Large sample size gives statistical reliability
6. Free from legal/registration formalities
7. Trained field staff ensures quality

Limitations of SRS

1. Only a sample - cannot provide district-level data
2. Expensive to maintain compared to a single-round survey
3. Does not cover cause of death in detail
4. Dependent on quality of enumerator's work
5. Cannot replace a full civil registration system

SRS Bulletin

• Results are published as SRS Bulletins by the Office of Registrar General, India
• Available on: www.censusindia.gov.in → Vital Statistics → SRS Bulletins
• Published annually with 1-2 year lag

Exam-Ready Summary Points

1. Started: 1964-65 (pilot) → 1969-70 (fully operational)
2. Run by: ORGI, Ministry of Home Affairs
3. Type: Dual-record system = Continuous enumeration + 6-monthly retrospective survey
4. Enumerator: resident, part-time; Supervisor: full-time
5. Main output: IMR, CBR, CDR, TFR, MMR at national and state level
6. Special feature: Self-evaluating (matching + re-verification)
7. Covers: ~8.1 million population across India

Civil Registration System (CRS)

Source: Park's Textbook of Preventive and Social Medicine

Definition

UN Definition: "Legal registration, statistical recording and reporting of the occurrence of, and the collection, compilation, presentation, analysis and distribution of statistics pertaining to vital events - i.e., live births, deaths, foetal deaths, marriages, divorces, adoptions, legitimations, recognitions, annulments and legal separations." (Park's, Block 12)

Key Features (4 Pillars of CRS)

Historical Background in India

The Registration of Births and Deaths Act, 1969

Salient Features:

• Registration of births and deaths is compulsory throughout India
• Replaced all diverse state-level laws with a single uniform central law
• Applies irrespective of nationality (even non-citizens' events occurring in India must be registered)

• Both births and deaths must be registered within 21 days uniformly across India
• Late registration attracts a late fee/penalty

Central Level:
Registrar General of India (RGI) - under Ministry of Home Affairs
↓
State Level:
Chief Registrar of Births and Deaths (State Govt.)
↓
District Level:
District Registrar
↓
Local Area:
Registrar (appointed by State/UT Govt.)

• Vital statistics are compiled by the states to ensure uniformity and comparability
• Published annually as "Vital Statistics of India based on CRS" by ORGI

• Aadhaar number is mandatory for registration of death

Vital Events Covered Under CRS

1. Live births
2. Deaths (including cause of death via death certificate)
3. Foetal deaths / Stillbirths
4. Marriages
5. Divorces
6. Adoptions, legitimations, recognitions
7. Annulments and legal separations

Importance / Uses of CRS

For the Individual:

• Provides legal identity (birth certificate = basis for all documents)
• Establishes nationality and citizenship
• Enables access to government entitlements and services
• Required for school admission, passport, voter ID, Aadhaar

For the Government / Public Health:

• Primary source of vital statistics (birth rate, death rate, cause of death)
• Used for health planning and policy making
• Monitors population growth and demographic trends
• Provides cause-specific mortality data (via death certificates)
• Basis for computing IMR, MMR, CDR, CBR at all administrative levels
• Supports Sustainable Development Goals (SDG) tracking

Lay Reporting (Associated Concept)

• Definition: Collection of information, its use, and transmission to higher levels by non-professional health workers
• In India: Village Health Guides, ASHAs, ANMs record vital events in their area
• This is a first-line supplement to the formal registration system

The demographic survey is a temporary substitute for CRS, but can never replace it.

Limitations of CRS in India

1. Under-registration - especially in rural and tribal areas
2. Illiteracy and ignorance - public unaware of reporting obligation
3. Lack of motivation - no immediate personal benefit perceived
4. Multiple agencies - health dept, panchayat, police, revenue dept all involved - creates confusion
5. Urban-rural disparity in data collection methods
6. Non-uniform prior to 1969 - different rules in different states
7. Late fee often not enforced - delays common
8. Cause of death inadequately recorded - verbal autopsy often needed
9. Biomarker data absent
10. COVID-19 pandemic exposed delayed death registration as a major flaw

CRS vs SRS - Comparison

Registration of Births and Deaths (Amendment) Act, 2023

• Digital integration - mandatory digital registration
• Linkage with national databases (Aadhaar, NPR, voter ID, passport, driving licence, ration card)
• Improved timeliness and completeness
• Strengthened penalties for non-compliance
• Better interministerial coordination

Exam-Ready Summary Points

1. CRS = Continuous, Permanent, Compulsory, Universal recording of vital events
2. Governed by: Registration of Births and Deaths Act, 1969 (in force from 1 April 1970)
3. Authority: Registrar General of India (ORGI) at central level
4. Registration time limit: 21 days for both births and deaths
5. Aadhaar mandatory for death registration from October 2018
6. CRS is the ideal/gold standard source of vital statistics
7. In India, CRS is deficient - hence SRS was started as an alternative
8. Individual benefit: legal identity; National benefit: vital statistics for planning