Table 2—

BMD measurements (g/cm2) by age-group

Age <20 years
Age ≥20 years
ControlType 1 diabeticPControlType 1 diabeticP
n36374926
Unadjusted data
    Total hip*
        Baseline0.975 ± 0.120.950 ± 0.110.3410.973 ± 0.120.906 ± 0.100.015
        Follow-up0.983 ± 0.120.953 ± 0.110.2650.968 ± 0.110.910 ± 0.100.029
        Percent change0.87 ± 3.670.32 ± 3.020.486−0.55 ± 2.580.50 ± 2.510.092
    Femoral neck*
        Baseline0.884 ± 0.130.870 ± 0.100.6130.876 ± 0.120.795 ± 0.100.003
        Follow-up0.891 ± 0.120.872 ± 0.100.4680.867 ± 0.120.790 ± 0.090.005
        Percent change1.02 ± 3.710.31 ± 3.540.407−0.68 ± 3.56−0.49 ± 3.310.823
    Wrist*
        Baseline0.533 ± 0.060.534 ± 0.040.9040.565 ± 0.040.553 ± 0.040.245
        Follow-up0.549 ± 0.050.552 ± 0.040.7750.565 ± 0.040.551 ± 0.040.163
        Percent change3.19 ± 2.853.42 ± 2.460.716−0.041 ± 1.46−0.41 ± 1.310.190
    A/P spine*
        Baseline0.991 ± 0.110.978 ± 0.090.5941.055 ± 0.111.029 ± 0.110.335
        Follow-up1.010 ± 0.111.00 ± 0.100.7471.059 ± 0.111.032 ± 0.120.329
        Percent change1.96 ± 3.882.40 ± 3.670.6260.36 ± 2.430.26 ± 2.880.868
    Whole body*
        Baseline1.090 ± 0.081.069 ± 0.080.2741.142 ± 0.081.097 ± 0.090.031
        Follow-up1.106 ± 0.081.084 ± 0.080.2511.138 ± 0.081.096 ± 0.090.041
        Percent change1.51 ± 2.121.44 ± 2.180.890−0.33 ± 2.00−0.04 ± 1.920.556
Adjusted data
    Total hip
        Baseline0.986 ± 0.130.940 ± 0.100.0670.979 ± 0.120.898 ± 0.100.003
        Follow-up0.993 ± 0.120.943 ± 0.100.0580.972 ± 0.120.902 ± 0.090.007
        Percent change0.80 ± 3.670.39 ± 3.020.598−0.55 ± 2.580.50 ± 2.510.124
    Femoral neck
        Baseline0.895 ± 0.130.859 ± 0.100.1580.883 ± 0.120.783 ± 0.10<0.001
        Follow-up0.901 ± 0.120.862 ± 0.100.1200.876 ± 0.120.777 ± 0.09<0.001
        Percent change0.89 ± 3.710.44 ± 3.540.610−0.57 ± 3.42−0.69 ± 3.310.887
    Wrist
        Baseline0.538 ± 0.060.529 ± 0.040.4130.566 ± 0.040.551 ± 0.040.168
        Follow-up0.553 ± 0.050.548 ± 0.040.6300.566 ± 0.040.550 ± 0.040.116
        Percent change2.99 ± 2.853.62 ± 2.460.2570.002 ± 1.38−0.34 ± 1.310.353
    A/P spine
        Baseline1.002 ± 0.110.968 ± 0.090.1171.060 ± 0.111.020 ± 0.110.169
        Follow-up1.020 ± 0.110.992 ± 0.100.2431.062 ± 0.111.026 ± 0.120.215
        Percent change1.88 ± 3.882.47 ± 3.670.4980.20 ± 2.410.55 ± 2.880.601
    Whole body
        Baseline1.097 ± 0.081.063 ± 0.080.0551.142 ± 0.081.097 ± 0.090.043
        Follow-up1.113 ± 0.081.078 ± 0.080.0611.138 ± 0.081.097 ± 0.090.065
        Percent change1.48 ± 2.121.47 ± 2.180.986−0.39 ± 2.010.09 ± 1.910.344
  • Data are means ± SD.

  • * P values by Student's t test.

  • P values by ANCOVA, adjusted for age, BMI, and OC use. A/P, anterior/posterior.