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Table 2 Serum blood glucose testing in a cohort of Ontario adults aged 40 years and older, without diabetes, 2001–2005.

From: Trends in laboratory testing for diabetes in Ontario, Canada 1995–2005: A population-based study

Time period Number new tests Denominator* % newly tested Cumulative no. tested Denominator (total) Cumulative % tested Never tested
1 year (2005) 2,043,156 5,071,304 40.30% 2,043,156 5,071,304 40.30%  
2 years (2004–2005) 766,250 3,028,148 25.30% 2,809,406 5,071,304 55.40%  
3 years (2003–2005) 374,702 2,261,898 16.60% 3,184,108 5,071,304 62.80%  
4 years (2002–2005) 244,953 1,887,196 13.00% 3,429,061 5,071,304 67.60%  
5 years (2001–2005) 185,139 1,642,243 11.30% 3,614,200 5,071,304 71.30% 28.70%
  1. * Denominator refers to the number of individuals in the cohort who had not previously undergone a serum blood glucose test during the study period (2001–2005)