Table 4—

Prevalence of diabetes and IFG in adults aged ≥20 years in the U.S. population, NHANES 1988–1994 and 1999–2002

Total populationAge (years)
MenWomenNon-Hispanic whitesNon-Hispanic blacksMexican Americans
20–3940–59≥60≥65
Diagnosed diabetes
    Crude percent
        1988–19945.11.15.512.812.94.95.45.06.95.6
        1999–20026.5*1.76.615.115.86.7*6.35.610.0*6.5
    Standardized percentage
        1988–19945.41.15.512.712.85.35.44.98.49.6
        1999–20026.5*1.76.615.215.87.0*6.15.211.0*10.4
Undiagnosed diabetes
    Crude percent
        1988–19942.70.63.36.15.63.02.42.53.43.4
        1999–20022.80.73.35.85.83.52.22.93.31.8*
    Standardized percentage
        1988–19942.80.63.36.35.83.32.52.53.94.4
        1999–20022.80.73.35.96.03.62.12.73.63.0
Total diabetes
    Crude percent
        1988–19947.81.68.818.918.47.97.87.510.49.0
        1999–20029.32.39.820.921.610.2*8.58.413.38.3
    Standardized percentage
        1988–19948.21.68.819.018.68.77.87.412.314.0
        1999–20029.32.49.821.121.810.68.27.814.613.5
IFG
    Crude percent
        1988–199424.714.829.637.237.732.118.024.820.826.5
        1999–200226.015.929.937.539.132.620.027.016.830.1
    Standardized percentage
        1988–199425.514.729.637.938.633.218.225.123.331.2
        1999–200226.015.729.837.939.532.819.526.117.7*31.6
Combined total diabetes and IFG
    Crude percent
        1988–199432.516.438.556.156.140.025.832.231.135.5
        1999–200235.318.339.758.460.742.928.535.430.138.4
    Standardized percentage
        1988–199433.716.338.556.957.241.926.132.535.645.3
        1999–200235.318.139.658.961.343.427.734.032.345.1
  • Undiagnosed diabetes is defined as FPG ≥7.0 mmol/l. IFG is defined as FPG 5.6 to <7.0 mmol/l. Values for the total population, by age, and by sex include those of race/ethnic groups not listed separately.

  • *

    * P < 0.01 between surveys.

  • P < 0.05 between surveys.

  • Standardized to the 2000 U.S. Census population by age and sex for the total population and race/ethnic groups, by sex for age-groups, and by age for sex-groups.