The use of epidemiological tools in conflict-affected populations: open-access educational resources for policy-makers

Table of Contents

1. Welcome
2. Introduction: Epidemiology in crises
3. Ethical issues in data collection
4. Need for epidemiologic competence
5. Surveys - Introduction
6. Surveys - Description of sampling methods
7. Surveys - Sampling error, bias, accuracy, precision, & sample size
8. Surveys - Resources required for surveys
9. Surveys - Critiquing survey reports
10. Surveillance - When to do surveillance
11. Surveillance - Methods
12. Surveillance - Common problems
13. Programme data
14. Rapid assessment
15. Mortality - Indicators and their measurement
16. Mortality - Data sources
    1. Introduction
    2. Surveillance - Prospective death reporting
    3. Surveys (retrospective data collection)
    4. Recall period
    5. Determining the length of the recall period
    6. Data collection and the questionnaire
    7. Surveys - Quiz
    8. Surveys measuring mortality - Summary
17. Mortality - Interpretation and action
18. Nutrition - Introduction and background
19. Nutrition - Indicators and their measurement
20. Nutrition - Data sources
21. Nutrition - Interpretation and action
22. Health services
23. Vaccination programmes
24. Water supply, sanitation, and shelter
25. Violence
26. Presentation of results
27. Formulating conclusions and recommendations
28. Dissemination and action

Surveys - Quiz

(go to Outline)

The sample for a nutrition and mortality survey included 611 households which had 3,544 members at the beginning of the recall period and 3,183 members at the end of the recall period. During the 87 day recall period, the survey detected a total of 107 deaths.

1

What is the numerator of the crude mortality rate? a) 87 b) 107 c) 361 d) 611 e) 3363.5 f) You can't tell from the information given Correct. There were 107 deaths reported in selected households.Incorrect. There were 107 deaths reported in selected households. Did you count something else?Your answer has been saved.

2

What is the population denominator of the crude mortality rate? a) 87 b) 107 c) 361 d) 611 e) 3363.5 f) You can't tell from the information given Correct. The population denominator is the average of the number of people in selected households at the beginning of the recall period (3544) and the end of the recall period (3183).Incorrect. Are you sure you're not mistaking the population denominator for something else?Your answer has been saved.

3	What is the crude mortality rate in this population in deaths per 10,000 per day? a) 30.3 b) 7.6 c) 7.7 d) 3.7 e) 1.9 f) You can't tell from the information given Correct. The crude mortality is: Incorrect. The crude mortality is: Your answer has been saved.