Denominators: An attempt to adjust for cancer incidence and mortality rates and its role in cancer registries
Cancer is an important public health burden in India and around the Globe. Incident cases of cancer are reported continuously, and trends in incidence rates vary among five yearly age group. In India National census is carried out after every 10 years since 1951, the latest census is carried out in...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Thieme Medical and Scientific Publishers Pvt. Ltd.
2015-01-01
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| Series: | South Asian Journal of Cancer |
| Subjects: | |
| Online Access: | http://journal.sajc.org/article.asp?issn=2278-330X;year=2015;volume=4;issue=1;spage=24;epage=27;aulast=Kalita |
| _version_ | 1819047225326567424 |
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| author | Manoj Kalita Tulika Nirmolia |
| author_facet | Manoj Kalita Tulika Nirmolia |
| author_sort | Manoj Kalita |
| collection | DOAJ |
| description | Cancer is an important public health burden in India and around the Globe. Incident cases of cancer are reported continuously, and trends in incidence rates vary among five yearly age group. In India National census is carried out after every 10 years since 1951, the latest census is carried out in 2011. As Incident cases of cancer are reported continuously for 5 year age group and estimation of rates and trends for a given year of interest fall in-between two census period population estimation of five yearly age group, which serves as Denominator sense importance. Denominator serves as the most essential part of any cancer registry program as it used for calculation of various rates for five yearly age group such as age-standardized rate, crude rate, truncated rate, cumulative risk etc., Calculated by different registries and Individual Researchers, Government organizations, etc. Currently most of the registries used individual exponential growth rate and differential distribution method to estimate the growth rate. However, it is found that the calculated rates and risk be suffering from bias most of the time since some method over and underestimate the growth rate while some does not able to maintain consistency. Here, an attempt is made to adjust the world standard population with two census period to estimate the five yearly age group for a given year of interest of a geographical region falls in-between two census period. It is also shown here that how the proposed model "age-adjusted population growth model" maintain the overall growth as in exponential growth model and difference distribution method also maintains the estimated growth rate is as found in difference distribution method. Further, it is tried to highlight the points how these method overcomes the problems compared with other methods that are currently used by registries. |
| first_indexed | 2024-12-21T10:56:59Z |
| format | Article |
| id | doaj.art-f1e8280737674bcba6bf8eec1d71c982 |
| institution | Directory Open Access Journal |
| issn | 2278-330X 2278-4306 |
| language | English |
| last_indexed | 2024-12-21T10:56:59Z |
| publishDate | 2015-01-01 |
| publisher | Thieme Medical and Scientific Publishers Pvt. Ltd. |
| record_format | Article |
| series | South Asian Journal of Cancer |
| spelling | doaj.art-f1e8280737674bcba6bf8eec1d71c9822022-12-21T19:06:29ZengThieme Medical and Scientific Publishers Pvt. Ltd.South Asian Journal of Cancer2278-330X2278-43062015-01-0141242710.4103/2278-330X.149943Denominators: An attempt to adjust for cancer incidence and mortality rates and its role in cancer registriesManoj KalitaTulika NirmoliaCancer is an important public health burden in India and around the Globe. Incident cases of cancer are reported continuously, and trends in incidence rates vary among five yearly age group. In India National census is carried out after every 10 years since 1951, the latest census is carried out in 2011. As Incident cases of cancer are reported continuously for 5 year age group and estimation of rates and trends for a given year of interest fall in-between two census period population estimation of five yearly age group, which serves as Denominator sense importance. Denominator serves as the most essential part of any cancer registry program as it used for calculation of various rates for five yearly age group such as age-standardized rate, crude rate, truncated rate, cumulative risk etc., Calculated by different registries and Individual Researchers, Government organizations, etc. Currently most of the registries used individual exponential growth rate and differential distribution method to estimate the growth rate. However, it is found that the calculated rates and risk be suffering from bias most of the time since some method over and underestimate the growth rate while some does not able to maintain consistency. Here, an attempt is made to adjust the world standard population with two census period to estimate the five yearly age group for a given year of interest of a geographical region falls in-between two census period. It is also shown here that how the proposed model "age-adjusted population growth model" maintain the overall growth as in exponential growth model and difference distribution method also maintains the estimated growth rate is as found in difference distribution method. Further, it is tried to highlight the points how these method overcomes the problems compared with other methods that are currently used by registries.http://journal.sajc.org/article.asp?issn=2278-330X;year=2015;volume=4;issue=1;spage=24;epage=27;aulast=KalitaCensusdenominatorscancer incidencecancer mortalitygrowth rateworld standard population |
| spellingShingle | Manoj Kalita Tulika Nirmolia Denominators: An attempt to adjust for cancer incidence and mortality rates and its role in cancer registries South Asian Journal of Cancer Census denominators cancer incidence cancer mortality growth rate world standard population |
| title | Denominators: An attempt to adjust for cancer incidence and mortality rates and its role in cancer registries |
| title_full | Denominators: An attempt to adjust for cancer incidence and mortality rates and its role in cancer registries |
| title_fullStr | Denominators: An attempt to adjust for cancer incidence and mortality rates and its role in cancer registries |
| title_full_unstemmed | Denominators: An attempt to adjust for cancer incidence and mortality rates and its role in cancer registries |
| title_short | Denominators: An attempt to adjust for cancer incidence and mortality rates and its role in cancer registries |
| title_sort | denominators an attempt to adjust for cancer incidence and mortality rates and its role in cancer registries |
| topic | Census denominators cancer incidence cancer mortality growth rate world standard population |
| url | http://journal.sajc.org/article.asp?issn=2278-330X;year=2015;volume=4;issue=1;spage=24;epage=27;aulast=Kalita |
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