| id |
1704777c-2bf5-41b1-9bc6-196254171e41 |
| user_id |
8684964a-bab1-4235-93a8-5fd5e24a1d0a |
| job_id |
fouoxiri-4019 |
| base_model_name |
xevyo |
| base_model_path |
/home/sid/tuning/finetune/backend/output/xevyo-bas /home/sid/tuning/finetune/backend/output/xevyo-base-v1/merged_fp16_hf... |
| model_name |
Epidemiology |
| model_desc |
Introduction to Epidemiology |
| model_path |
/home/sid/tuning/finetune/backend/output/fouoxiri- /home/sid/tuning/finetune/backend/output/fouoxiri-4019/merged_fp16_hf... |
| source_model_name |
xevyo |
| source_model_path |
/home/sid/tuning/finetune/backend/output/xevyo-bas /home/sid/tuning/finetune/backend/output/xevyo-base-v1/merged_fp16_hf... |
| source_job_id |
xevyo-base-v1 |
| dataset_desc |
1. Meaning of Epidemiology
Definition
Study 1. Meaning of Epidemiology
Definition
Study of the distribution and determinants of health and disease in populations
Focus on who gets disease, when, where, and why
Main Focus Areas
Sick people and healthy people
Exposed and non-exposed groups
Differences between affected and unaffected individuals
2. Uses of Epidemiology
Disease Description
Study natural history of disease
Measure disability, injury, and death
Describe patterns of disease
Planning and Services
Planning health services
Developing health programs
Providing administrative data
Study of Causes
Identify causes and risk factors
Determine agents responsible
Study modes of transmission
Identify contributing and environmental factors
Study geographic patterns
3. Purpose of Epidemiology
Provide basis for disease prevention
Control and reduce disease
Protect groups at risk
Support health policy and planning
4. Types of Epidemiology
Descriptive Epidemiology
Describes distribution of disease
Studies basic features
Identifies patterns
Helps generate hypotheses
Analytic Epidemiology
Tests hypotheses
Studies relationship between exposure and disease
Identifies causes and risk factors
Relation between Both
Descriptive studies guide analytic studies
Provide direction for further research
5. Descriptive Epidemiology – Three Main Factors
Person
Age
Gender
Ethnicity
Genetics
Lifestyle habits
Occupation and education
Socio-economic status
Place
Geographic location
Climate
Population density
Economic development
Nutritional and medical practices
Presence of agents and vectors
Time
Calendar time
Age
Seasonal patterns
Trends over years
Time since exposure
6. Epidemiologic Triangle
Three Components
Host
Age and sex
Genetic factors
Immunity
Behavior
Nutrition
Agent
Biological agents
Chemical agents
Physical agents
Factors influencing severity and spread
Environment
Physical conditions
Social conditions
Biological surroundings
External influences
Disease Occurs When
Balance between host, agent, and environment is disturbed
7. Epidemics
Causes of Epidemics
Introduction of a new agent
Change in existing agent
Increase in susceptible population
Environmental changes
Increased transmission
8. Epidemiologic Activities
Distribution Studies
Person distribution
Place distribution
Time distribution
Frequency Analysis
Patterns of disease
Seasonal variations
Temporal trends
Comparative Studies
Exposed vs non-exposed
Diseased vs healthy
MEASURING DISEASE OCCURRENCE
9. Measures of Disease Occurrence
Main Measures
Morbidity
Mortality
Prevalence
Incidence
Incidence density
10. Prevalence
Meaning
Proportion of population having a disease at a given time
Characteristics
Includes old and new cases
Expressed as proportion or percentage
Uses
Measure burden of disease
Plan health services
Estimate resource needs
11. Incidence
Meaning
Proportion of disease-free people who develop disease during a period
Characteristics
Includes only new cases
Measures risk of disease
Uses
Identify causes
Measure speed of disease spread
Evaluate prevention programs
12. Incidence Density
Meaning
Rate of new cases per unit of person-time
Characteristics
Accounts for different follow-up times
Expressed as cases per person-time
Uses
Cohort studies
Long-term follow-up
Comparing groups with unequal time at risk
MEDICAL SURVEILLANCE
13. Medical Surveillance
Definition
Continuous monitoring of health events
Goals
Detect changes in disease patterns
Identify outbreaks
Monitor trends
Guide prevention strategies
14. Data Sources for Surveillance
Mortality records
Disease registries
Hospital data
Surveys
Census data
STANDARDIZATION OF RATES
15. Need for Standardization
Crude rates may be misleading
Populations differ in age structure
Fair comparison requires adjustment
16. Direct Standardization
Concept
Apply age-specific rates of study population to a standard population
Purpose
Compare disease rates accurately
Remove effect of age differences
17. Indirect Standardization
Concept
Apply age-specific rates of standard population to study population
Main Measure
Standardized Mortality Ratio (SMR)
Standardized Incidence Ratio (SIR)
Uses
Small populations
Unstable age-specific rates
MEASURES OF EFFECT
18. Risk Difference
Meaning
Difference in disease risk between exposed and non-exposed
Use
Measures absolute effect
Shows excess risk due to exposure
19. Attributable Fraction
Meaning
Proportion of disease due to exposure
Proportion of preventable cases
Types
Attributable fraction in exposed
Population attributable fraction
20. Risk Ratio (Relative Risk)
Meaning
Ratio of disease risk in exposed to non-exposed
Interpretation
RR > 1 → increased risk
RR = 1 → no effect
RR < 1 → protective effect
21. Odds Ratio
Meaning
Ratio of odds of disease in exposed to non-exposed
Uses
Case-control studies
Rare diseases
Properties
Approximates risk ratio when disease is rare
CONFOUNDING AND EFFECT MODIFICATION
22. Confounding
Meaning
Distortion of association by another factor
Control Methods
Stratification
Matching
Statistical adjustment
23. Effect Modification
Meaning
Effect of exposure differs across subgroups
Importance
Identifies high-risk groups
Guides targeted interventions
If you want next, I can prepare:
📌 Short exam-ready notes
📌 Topic-wise MCQs
📌 Long & short questions
📌 Presentation slide outline
📌 Very easy student version
📌 Flow charts & tables
... |
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| dataset_path |
/home/sid/tuning/finetune/backend/output/fouoxiri- /home/sid/tuning/finetune/backend/output/fouoxiri-4019/data/fouoxiri-4019.json... |
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null |
| status |
queued |
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1769327422 |
| updated_at |
1769332270 |
| source_adapter_path |
NULL |
| adapter_path |
/home/sid/tuning/finetune/backend/output/fouoxiri- /home/sid/tuning/finetune/backend/output/fouoxiri-4019/adapter... |
| plugged_in |
False |