Table 1.

Characteristics of the study populationa

Patient CharacteristicsMean Observed Hb Level
<10.010.0 to 10.911.0 to 11.912.0 to 12.913.0 to 13.914.0 to 14.915.0+Total
No. of patients13982908759916,98924,47319,97415,31688,657
Age at cohort entry (yr; %)
    <150.91.00.80.40.30.10.10.3
    15 to 240.70.80.70.60.60.61.00.7
    25 to 343.23.22.92.93.02.94.13.2
    35 to 4412.713.212.814.214.314.316.714.5
    45 to 5419.816.718.721.222.224.126.322.6
    55 to 6418.720.322.724.828.030.630.127.5
    65 to 7417.416.817.817.317.516.714.616.8
    75+26.728.123.618.514.110.87.214.5
Gender (%)
    female71.277.181.584.078.053.720.363.9
    male28.822.918.516.022.046.379.836.2
Diabetes (%)35.835.129.322.217.316.515.519.6
Baseline evidence of (%)
    lipid metabolism disorder18.719.218.117.116.717.015.816.9
    hypertension60.858.952.742.736.134.032.738.9
    nicotine addiction1.01.51.10.91.11.31.31.2
    cardiac dysrhythmia15.613.210.37.15.75.45.56.7
    insulin11.910.36.63.72.11.81.43.0
  • a Hb, hemoglobin.