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Completeness and Quality of Kumasi (Ghana) Mortuary Dataset

Authors: Kavi Bhalla, Jerry P Abraham and Adofo Koranteng

Date: July 7, 2010

 

Objective: To do a crude test of the completeness and quality of the Kumasi mortuary dataset

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

Findings:

-          The quality of cause of death attribution of the dataset is high with a relatively small number of deaths assigned to unspecified causes.

-          The completeness of the database is high (approximately 65%).

 

 

 

Background

-          Data Source Analyzed: Komfo Anokye Teaching Hospital (KATH) mortuary records. The dataset contained records for two years, 2005 and 2006, but no year variable was available. Thus the aggregated data has been used here. 

-          Analysis in this report should be repeated once better data on urban mortality in Ghana is available:

o   The analysis in this report uses crude estimates of population and mortality in Ghana. Typically these have been extrapolated from estimates available for the country in international databases. Accurate data for population and mortality in urban Ghana should be available from the 2010 Census. This analysis should be updated when these estimates are available.

-          This mortuary database only contains injury cases.  


 

Table 1: External cause distribution of deaths in the KATH-Kumasi mortuary dataset (Two years of data: 2005 & 2006)

Intent

Broad

Specific

Deaths

% of Total

Unintentional

Road Injury

Pedestrian

185

12%

Bicyclist

2

0%

Two-wheeler rider

6

0%

Vehicle occupant

748

48%

Falls

Falls

72

5%

Drowning

Drowning

66

4%

Fire

Fire

54

3%

Mechanical forces

Firearm

28

2%

Poisoning

Gases

33

2%

Animal contact

Animal contact

1

0%

Other

Other

28

2%

Self-inflicted

Other threats to breathing

42

3%

Poisoning

 

46

3%

Inter-personal

Unspecified mechanism

124

8%

Undetermined Intent

Firearm

 

30

2%

Unspecified Intent

Unspecified injury

80

5%

TOTAL

1545

100%

 

Assessment of Quality of Injury Coding

·         The quality of cause of death attribution in the dataset is high with relatively few cases assigned to partially-specified or unspecified cause categories.

o   5% of all injuries are not further specified

o   The mechanism for homicide deaths is not known

 

Assessment of Completeness

·         Coverage: It is assumed that the mortuary receives cases only from Kumasi. Thus, the injury deaths in the mortuary are compared with total estimated injury deaths in the city.  

·         Age aggregation: The assessment focuses on deaths among young adults aged between 15-59 years. 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 shows that the completeness of the mortuary data set is high (approximately 65%)


 

TABLE 2: Assessment of completeness of the KATH-mortuary dataset

POPULATION CALCULATION

1,646,000

Both

Population of Kumasi Urban Area in 2007

 823,000

Male

 

 823,000

Female

 

 

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

% that are between 15-59 years

61.00%

Male

% of urban males, 15-19 years in Ghana

59.93%

Female

% of urban females, 15-19 years in Ghana

 

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

Population of Kumasi between 15-59 years

 502,006

Male

 

 493,254

Female

 

 

Calculated from above

DEATHS CALCULATION

Death rate for 15-59 years in Ghana

0.00701

Male

(per person)

0.00572

Female

 

 

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

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

3518

Male

 

2822

Female

 

 

Source:  Death rate applied to Kumasi 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 Kumasi

 694

Male

 

 146

Female

 

 

Calculated from above

COMPLETENESS TEST

Mortuary Injury Deaths between the ages of 15-59 years

427

Male

 

118

Female

 

 

Source: Annual estimate from 2 Years of mortuary data

Completeness of injury deaths between ages 15-59 years

61%

Male

fraction of estimated injury deaths that are in mortuary

81%

Female

 

65%

Total

 

 

Calculated from above

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