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Table 1 Description of factors related to the prevalence of type 2 diabetes

From: Factors that could explain the increasing prevalence of type 2 diabetes among adults in a Canadian province: a critical review and analysis

  Fiscal year
2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Prevalence of type 2 diabetes
Prevalence of T2D % 6.71 7.03 7.81 8.73 9.78 10.7 11.2 11.6 12.1 12.8 13.5 14.0 14.4 14.9a
Individual-level risk factors
Median population age (years) 38.2 38.8 39.4 39.9 40.5 41.1 41.6 42.0 42.4 42.7 43.0 43.4 43.9 44.3a
Health factors  
 Obesity %    22.4   25.3   23.2 25.2 30.6 30.0 27.3 32.5 28.3 28.3a
 Hypertension %    30.0   34.7   34.8 36.1 37.4 39.3 37.9 39.7 37.0 38.1a
 Prediabetes % 0.87 1.12 1.63 2.27 3.14 3.87 4.24 4.18 4.67 5.44 6.02 6.14 6.01 6.41a
Life style habits
 Fruits and vegetables consumption %    33.1   36.1   38.3 38.7 39.2 36.0 34.7 31.4 35.8 32.5a
 Moderate and high PA levels %    41.4   41.4   39.7 45.4 44.3 48.6 46.8 48.3 44.0 45.9a
 Inactive PA levels %    60.3   59.5   61.0 56.9 57.3 53.1 54.6 52.6 56.8 55.3a
 Smoking habits %    23.8   19.5   24.8 21.4 20.0 19.9 20.3 22.1 21.2 19.8a
 Alcohol consumption %    18.0   18.0   17.2 18.3 16.8 18.9 22.0 21.0a   
Education  
 High school % 69.5 70.7 72.1 72.8 73.5 75.0 74.9 76.4 77.2 77.6 76.7 78.3 78.2 80.7a
 University % 12.9 13.2 13.5 13.8 14.7 15.1 15.7 16.1 16.5 16.6 16.5 16.0 17.7 18.0a
Socioeconomic status  
 Low income % 13.9 14.8 15 14.4 14.2 14.2 13.9 11.6 10 9.3 9.2a    
Ethnicity               
 Immigration % 3.1      3.7      3.9a    
Environmental risk factors     
Urbanization               
Rural area % 49.8      49.1      47.5a    
Evolution of the disease  
Incidence of T2D 1000 pers-year 7.35 6.95 11.9 13.9 15.3 14.0 10.9 8.68 11.6 13.2 13.9 11.4 10.1 10.8a
Mortality rate 1000 pers-year 42.0 38.0 39.0 34.3 33.4 30.4 31.8 31.9 31.5 29.0 29.6 28.7 28.4 25.1a
Conversion rate from Prediabetes 1000 pers-year 65.5 84.0 90.3 97.5 105.0 80.9 57.8 44.6 59.6 62.9 59.8 43.1 41.1 48.1a
Detection effect  
HbA1c testing frequency 24,003 30,271 45,129 58,630 67,533 72,035 73,395 76,854 82,610 90,949 105,214 118,260 138,073 145605a
HbA1c at detection % 7.75 7.86 7.65 7.58 7.45 7.47 7.54 7.64 7.48 7.41 7.49 7.59 7.64 7.58a
Age at detection (year) 60.8 59.9 60.7 61.2 61.5 61.4 60.9 59.4 60.0 60.5 60.3 59.7 59.8 59.5a
Individuals with diabetes known as individuals with prediabetes % 0.97 1.70 2.33 3.25 4.19 3.65 2.75 2.12 2.93 3.29 3.30 2.41 2.23 2.66a
  1. T2D type 2 diabetes
  2. a P < 0.0001