Transcript PPT

Session 6. Quality assessment and
assurance in the civil registration vital
statistics system
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
Addis Ababa, Ethiopia, 2- 5 December 2014
Basic framework
Adequately funded evaluation activities are
essential
– For improving systems that have deficiencies
– For maintaining systems that function
satisfactorily
Quality assurance
Quality assessment
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
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Addis Ababa, Ethiopia, 2- 5 December 2014
Basic framework
Quality assurance
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•
•
•
•
Quality assessment
• Specific studies for
Encompasses each
specific questions
stage of CRVS operations
• Coverage of registration
All vital events are
of vital events
registered without
duplication
• Accuracy of variables
All related information is • Overall functioning of
recorded
sub-systems
Information is compiled, • Can be ad hoc or regular
validated and processed
exercises
Vital statistics are
released
in timely
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
manner
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Addis Ababa, Ethiopia, 2- 5 December 2014
Standards
Completeness
Correctness
or Accuracy
Availability
Timeliness
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
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Addis Ababa, Ethiopia, 2- 5 December 2014
Completeness
* Every vital event is
registered
* Statistical report is filed
for every registered event
* Coverage error
Correctness
* Every data item is filled
* Data items are
accurately filled
* Content error
Timeliness
Availability
* CR: every event is
* Data and statistics are
registered within time limit
available to users in a
* VS: prompt
friendly format
dissemination
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
Addis Ababa, Ethiopia, 2- 5 December 2014
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Quality assessment methods
Direct methods
Matching of
records
Indirect methods
Demographic
analysis
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
6
Addis Ababa, Ethiopia, 2- 5 December 2014
Quality assessment. Direct methods
Matching of
records
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•
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Match registration
records with records
from an independent
source
Birth registration with death registration
Administrative records
Lists from population censuses and surveys
Dual records system
Set up survey specifically to collect information
on vital events
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
•
Revision 3, for African English-speaking countries
Addis Ababa, Ethiopia, 2- 5 December 2014
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Quality assessment. Indirect methods
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Comparison of trends
Delayed registration
Comparison with census data
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Demographic
analysis
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Methods for incomplete data
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If two censuses: balancing
equation, Lexis diagram
If only one census: compare
aggregated numbers
Manual X and its update
(Tools for Demographic
Estimation)
Questions on birth registration
in surveys
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
8
Addis Ababa, Ethiopia, 2- 5 December 2014
Direct or indirect ?
Advantages
Direct
methods
Indirect
methods
Limitations
• More accurate assessment of
• Accuracy is affected by the
registration completeness
choice of the second source of
• May indicate sources of under or
records
overregistration
• True independency of the
• Can be applied at any
second source is unlikely
geographical level
• Matching criteria difficult to find if
there is no ID number
• If manual: time consuming
• If automated: computer
algorithms can get too complex
• Cost
• Prompt assessment of vital
• Some have assumptions that
statistics completeness
may not hold
• Several can be applied at
• Some require reliable data from
various geographical levels
two censuses
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking
countries is affected by the
• Accuracy
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Addis Ababa, Ethiopia, 2- 5 December 2014
degree of census completeness
Direct or indirect ?
•
If vital statistics are compiled fully from civil registration,
both direct and indirect measure the quality of civil
registration and vital statistics.
•
When the two systems do not correspond completely,
measures of quality of one system cannot be used to
represent another
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
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Addis Ababa, Ethiopia, 2- 5 December 2014
Direct or indirect ?
Choosing the
appropriate
method
depends on:
• Objectives
• Degree of
precision
• Timeliness
• Type of event
• Resources
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
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Addis Ababa, Ethiopia, 2- 5 December 2014
Gracias Thank You
Merci Спасибо
‫ ﺷﻜﺮﺍﹰ‬谢谢
United Nations Workshop on Principles and Recommendations for a Vital Statistics System,
Revision 3, for African English-speaking countries
Addis Ababa, Ethiopia, 2- 5 December 2014