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Table 2 All-cause mortality rates (per 1,000 person-years) and relative risks for the US adult population by diabetes status and period

From: Mortality and excess risk in US adults with pre-diabetes and diabetes: a comparison of two nationally representative cohorts, 1988–2006

  NHANES III NHANES CTS
  (1988-2001) (1999-2006)
No Diabetes   
Mortality Rate 7.81 (6.70-8.93) 6.04 (4.77-7.32) †
Relative Risk 1.00 1.00
Pre-Diabetes   
Mortality Rate 11.19 (8.38-14.00) 14.02 (8.47-19.58)
Relative Risk 1.43 (1.12-1.74) 2.32 (1.24-3.40)
Diabetes   
Mortality Rate 20.34 (16.00-24.67) 20.82 (13.10-28.54)
Relative Risk 2.60 (1.91-3.29) 3.45 (2.02-4.87)
Deaths 960 341
Person-years 67,526 30,989
  1. HbA1c: Hemoglobin A1c; No Diabetes is defined as HbA1c less than 5.7%; Pre-Diabetes is defined as HbA1c between 5.7 and 6.5%; Diabetes is defined as HbA1c above 6.5% or on treatment for diabetes. Sample includes persons ages 35-74 at baseline. Entry years are 1988-1994 with follow-up through 2001 for the earlier period and 1999-2002 with follow-up through 2006 for the later period. Mortality rates are age-standardized to the year 2000 Census population using age groups 35-54, 55-69 and 70-84. Relative risks are based on age-standardized mortality rates and are otherwise unadjusted. All estimates are weighted and account for complex survey design. Sources: National Health and Nutrition Examination Survey (NHANES) III and continuous (CTS).
  2. Significantly different (p < 0.05) compared with NHANES III.