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Table 1 Prevalence and incidence of type 2 diabetes in Taiwan

From: Time trend analysis of the prevalence and incidence of diagnosed type 2 diabetes among adults in Taiwan from 2000 to 2007: a population-based study

  2000 2001 2002 2003 2004 2005 2006 2007
Prevalence rates of type 2 diabetes
Prevalent cases 706,444 795,650 906,794 1,045,892 1,166,113 1,294,594 1,421,940 1557494
Age (year) 62.1±12.8 62.1±12.9 62.1±13.0 62.0±13.2 62.3±13.3 62.8±13.6 63.2±13.7 63.7±13.9
Total population 12,191,076 13,122,056 14,543,692 16,797,716 17,284,273 17,891,631 18,327,156 18,772,180
Prevalence rate (%) 5.8 6.1 6.2 6.2 6.8 7.2 7.8 8.3
Standardized prevalence rate (%) 5.8 6.2 6.5 6.8 7.3 7.8 8.2 8.5
Age         
20–39 0.6 0.6 0.6 0.6 0.7 0.7 0.8 0.8
40–59 5.6 6.0 6.3 6.5 7.0 7.3 7.7 8.0
60–79 17.6 18.7 19.8 20.8 22.2 23.6 24.8 25.9
≥80 16.4 18.0 19.6 21.2 23.3 25.4 27.2 28.9
Sex         
Female 5.9 6.1 6.2 6.1 6.6 7.0 7.5 8.0
Male 5.7 6.1 6.3 6.4 6.9 7.4 8.0 8.6
Insurance premium         
Dependent population 8.3 8.5 8.8 8.9 9.5 10.5 11.5 12.5
< Median 5.3 6.8 5.4 6.8 7.4 7.8 8.3 8.6
Median 5.2 3.5 5.7 3.5 3.8 4.0 4.2 4.3
Urbanization level         
High-density urban area 5.1 5.3 5.5 5.4 5.9 6.3 6.8 7.3
Medium-density urban area 5.8 6.0 6.2 6.2 6.7 7.2 7.7 8.3
Newly developed area 5.4 5.6 5.8 5.8 6.2 6.7 7.1 7.6
General area 6.6 7.0 7.2 7.4 8.0 8.6 9.2 9.8
Aging society area 8.6 9.1 9.5 10.0 10.8 11.8 12.7 13.6
Rural area 7.4 7.9 8.3 8.7 9.6 10.5 11.4 12.3
Non-developed area 6.9 7.4 7.7 8.0 8.8 9.5 10.2 11.0
Incidence rates of type 2 diabetes
Incident cases 94,895 99,571 108,261 112,737 136,891 128,702 129,702 136,914
Age (year) 59.5±13.7 59.2±13.7 59.1±13.8 58.8±13.9 58.2±14.1 58.5±14.2 58.2±14.1 58.3±14.0
Population at risk 10,563,201 11,151,246 12,075,839 13,574,064 15,858,527 16,379,127 16,807,297 17,147,703
Incidence rate (/1000) 9.0 8.9 9.0 8.3 8.6 7.9 7.7 8.0
Standardized incidence rate (/1000) 9.0 9.1 9.3 8.9 9.8 8.9 8.7 8.9
Age         
20–39 1.5 1.5 1.5 1.4 1.5 1.4 1.4 1.4
40–59 9.8 10.1 10.3 9.9 11.0 9.9 9.9 10.3
60–79 23.9 23.8 24.5 23.5 25.5 23.7 22.8 23.3
≥80 25.1 24.8 25.5 24.6 25.7 22.9 20.0 19.2
Sex         
Female 8.6 8.4 8.3 7.6 7.9 7.2 7.0 7.3
Male 9.4 9.5 9.7 9.0 9.4 8.6 8.4 8.7
Insurance premium         
Dependent population 11.3 11.0 11.1 10.4 11.1 10.3 10.1 10.5
< Median 8.7 10.0 8.2 9.2 9.4 8.5 8.3 8.4
≥Median 8.4 6.1 8.5 5.6 5.8 5.3 5.3 5.5
Urbanization level         
High-density urban area 7.9 8.0 8.0 7.3 7.8 7.1 7.0 7.2
Medium-density urban area 9.0 8.9 9.0 8.2 8.6 7.8 7.8 8.0
Newly developed area 8.3 8.3 8.4 7.9 8.1 7.3 7.1 7.4
General area 10.2 10.0 10.1 9.6 9.9 8.9 8.7 9.2
Aging society area 12.9 13.1 12.9 12.6 12.9 12.1 12.1 12.5
Rural area 11.4 11.4 11.6 10.8 12.1 11.5 11.1 11.6
Non-developed area 10.5 10.4 10.8 10.5 10.9 10.2 9.8 10.1