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Completeness and Quality of Kampala Mortuary Dataset

Authors: Kavi Bhalla, Jerry P Abraham and Michael Lipnick

Date: July 7, 2010

 

Objective: To do a crude test of the completeness and quality of the Kampala Mortuary dataset

Method: The number of deaths in the mortuary records was compared with an estimate of the number of deaths expected in the Kampala metropolitan area

Findings:

-          The mortuary dataset captures a substantial fraction of injury deaths in Kampala

-          The quality of cause of death attribution of the dataset is low with a substantial number of deaths assigned to unspecified causes. Only four external causes (RTA, Fall, Burn, and Assault) can be distinguished.

 

 

Background

-          Data Source Analyzed: Kampala Mortuary records (Kampala city mortuary and Mulago Hospital mortuary), for six months (July - Dec 2007).

-          Analysis in this report should be repeated with Census 2007 data:

o   The analysis in this report uses crude estimates of population and mortality in Kampala. Typically these have been extrapolated from estimates available for the country in international databases. Accurate data for population and mortality in Kampala should be available from the 2002 Population Census. This analysis should be updated when these estimates are available. (Note that the 2002 Census includes a question on household deaths but unlike some other censuses does not ask if the death was due to injury/violence)

-          Injury cases comprise 100% of the deaths in the mortuary dataset analyzed here.  

 

Assessment of Quality of Injury Coding

o   Only four specified forms of injuries (Road Traffic, Fall, Burn, Assault) can be distinguished from the dataset. Key external causes that are not included at all include drowning, suicide, poisoning and mechanisms of RTA and assault.

o   Unknown external cause comprised 22% of all injuries

 

TABLE 1: Distribution of cases in the Kampala mortuary dataset

External Cause

Male

Female

Unk

Total

% of Total

% of Spec.

RTA

292

77

1

370

49%

60%

FALL

17

 

 

17

2%

3%

BURN

34

35

2

71

9%

11%

ASSAULT

117

13

 

130

17%

21%

OTHER

24

7

 

31

4%

5%

UNKNOWN

119

17

2

138

18%

22%

Grand Total

603

149

5

757

100%

 

 


 

Assessment of Completeness

Coverage: It is assumed that the Mortuary receives cases only from Kampala.   

Age aggregation:

-          The assessment focuses on deaths among young adults aged between 15-59 years in Kampala. This was done to reduce uncertainty in this analysis. (Injuries occur primarily among young adults and the high mortality among children and older adults can add substantial uncertainty to analysis)

TABLE 2: Assessment of completeness of the Kampala Mortuary dataset

POPULATION CALCULATION

 1,420,000

both sexes

Population of Kampala Urban Agglomeration

 710,000

Male

 

 710,000

Female

 

 

Source: World Urbanization Prospects for total population + assuming 50-50 gender distribution

% that are between 15-59 years

57.85%

Male

% of urban males 15-59 years in Uganda (year 2005)

54.66%

Female

% of urban females 15-59 years in Uganda

 

Source: UNPD World Population Prospects 2008 (all urban population)

Population of Kampala between 15-59 years

 410,764

Male

 

 388,052

Female

 

 

Calculated from above

DEATHS CALCULATION

Death rate for 15-59 years in Kampala

0.01535

Male

(per person)

0.01520

Female

 

 

Source: Estimated from UNPD all-cause deaths and UNPD population for year 2000

Estimated all-cause deaths among 15-59 years in Kampala

6303

Male

 

5900

Female

 

 

Source:  Death rate applied to Kampala Population

Fraction of all-cause deaths that are due to injuries among people aged 15-59 years

19.7%

Male

 

5.2%

Female

 

 

Source: GBD-2004, Africa region

Estimates of injury deaths in age group 15-59 years in Kampala

 1,244

Male

 

 305

Female

 

 

Calculated from above

COMPLETENESS TEST

Mortuary Injury Deaths between the ages of 15-59 years

1044

Male

 

216

Female

 

 

Source: Mortuary data for six months - scaled to one-year

Completeness of injury deaths between ages 15-59 years

84%

Male

% of estimated injury deaths seen at the mortuary

71%

Female

 

81%

Total

 

 

Calculated from above

 

Acknowledgements: The Kampala mortuary dataset analyzed here was developed by a research team headed by Professor Jacqueline Mabweijano, Department of Surgery, Mulago Hospital, Kampala.
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