L3: Introduction to Epidemiology
2024/2025 Exam Questions Marking
Scheme New Update | A+ Rated
Epidemiology - 🧠ANSWER ✔✔The study of the distribution and determinants of
health events and health-related risk factors in specified populations, and the
application of this knowledge to plan and evaluate strategies to prevent or
manage the disease in specified populations
descriptive epidemiology - 🧠ANSWER ✔✔The aspect of epidemiology concerned
with organizing and summarizing health-related data according to time, place,
and person
Collection and analysis of data
> Patterns of disease occurrence
> By person, time and place
> Easily accessible data
Page 1 of 9
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Applications
> Vital statistics
> Periodic surveys
> Comparisons
> Program planning
> Hypotheses generating
> Future research
Aetiological Epidemiology - 🧠ANSWER ✔✔Searching for outbursts of potential
factors increasing health conditions eg diet, pollution, behavioural habits
Evaluative Epidemiology - 🧠ANSWER ✔✔Effectiveness of interventions
What can reduce obesity, and in whom?
Implement programs/projects, build community capacity, re-orient existing
systems
Evidence of effectiveness of interventions strengthening
Some interventions work in some countries but not others
Effect of preventative intervention and disease outcome and quantitatively
estimates risk of specific disesases for a person
Page 2 of 9
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
2024/2025 Exam Questions Marking
Scheme New Update | A+ Rated
Epidemiology - 🧠ANSWER ✔✔The study of the distribution and determinants of
health events and health-related risk factors in specified populations, and the
application of this knowledge to plan and evaluate strategies to prevent or
manage the disease in specified populations
descriptive epidemiology - 🧠ANSWER ✔✔The aspect of epidemiology concerned
with organizing and summarizing health-related data according to time, place,
and person
Collection and analysis of data
> Patterns of disease occurrence
> By person, time and place
> Easily accessible data
Page 1 of 9
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Applications
> Vital statistics
> Periodic surveys
> Comparisons
> Program planning
> Hypotheses generating
> Future research
Aetiological Epidemiology - 🧠ANSWER ✔✔Searching for outbursts of potential
factors increasing health conditions eg diet, pollution, behavioural habits
Evaluative Epidemiology - 🧠ANSWER ✔✔Effectiveness of interventions
What can reduce obesity, and in whom?
Implement programs/projects, build community capacity, re-orient existing
systems
Evidence of effectiveness of interventions strengthening
Some interventions work in some countries but not others
Effect of preventative intervention and disease outcome and quantitatively
estimates risk of specific disesases for a person
Page 2 of 9
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
