Death Statistics (External Causes) - by sex, age and residential district, causes of death in 3-digit codes of the International Classification of Diseases (from 2001 onwards)

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Note(s):

1. Estimation of death rates by cause of death, age, sex and residential district
   
   where i = 1, 2, …, j = 1, 2, …,18, k = 1, 2 and l = 1, 2, …, 18 (see Annex for the definition of variables)
   
   
   where i = 1, 2, …, j = 1, 2, …,18 and k = 1, 2 (see Annex for the definition of variables)
   
2. Coverage
   1. Population refers to land-based non-institutional population of Hong Kong and thus does not cover: (a) inmates of institutions; and (b) persons living on board vessels.
   2. The registered death database covers all population of Hong Kong.
3. Limitations
   1. The numerator (i.e. number of registered death) of the formula covers institutional population of Hong Kong, but the denominator does not cover inmates of institutions. Hence, the estimated death rate is slightly greater than the actual death rate.
   2. There is no separate category of illegal immigrants, transients, marine population, population in military camp, unknown residential in the land-based non-institutional population. Hence, the death rate of this category of population (i.e. ) is undefined.
   3. The death rates of registered deaths with unknown age and sex are undefined.
4. Definitions of Variables

   Variable	Index	Definition
   1. Cause of death	i = 1, 2, …	Classification of diseases and causes of death is based on the International Statistical Classification of Diseases and Related Health Problems, 10th Revision (ICD-10)
   2. Age group(Age refers to the number of complete years a person has passed since his/her birth date)	j = 1	0 – 4 years
   	j = 2	5 – 9 years
   	j = 3	10 – 14 years
   	j = 4	15 – 19 years
   	j = 5	20 – 24 years
   	j = 6	25 – 29 years
   	j = 7	30 – 34 years
   	j = 8	35 – 39 years
   	j = 9	40 – 44 years
   	j = 10	45 – 49 years
   	j = 11	50 – 54 years
   	j = 12	55 – 59 years
   	j = 13	60 – 64 years
   	j = 14	65 - 69 years
   	j = 15	70 - 74 years
   	j = 16	75 - 79 years
   	j = 17	80 - 84 years
   	j = 18	85 years and above
   3. Sex	k = 1	Male
   	k = 2	Female
   4. Residential district ( There are 18 District Council districts: 4 in Hong Kong Island; 5 in Kowloon and 9 in the New Territories)		Hong Kong Island
   	l = 1	Central & Western
   	l = 2	Wan Chai
   	l = 3	Eastern
   	l = 4	Southern
   		Kowloon
   	l = 5	Yau Tsim Mong
   	l = 6	Sham Shui Po
   	l = 7	Kowloon City
   	l = 8	Wong Tai Sin
   	l = 9	Kwun Tong
   		New Territories
   	l = 10	Kwai Tsing
   	l = 11	Tsuen Wan
   	l = 12	Tuen Mun
   	l = 13	Yuen Long
   	l = 14	North
   	l = 15	Tai Po
   	l = 16	Sha Tin
   	l = 17	Sai Kung
   	l = 18	Islands
   	l = 99	Others (including illegal immigrants, transients, marine population, population in military camp, unknown, etc.)