Table 1—

Overall and age- and sex-specific incidence densities and relative hazards of nontransport accident hip fracture (ICD-9 820) in the diabetic and control groups

Variables*Control group
Diabetic group
Adjusted HR (95% CI) in association with diabetic group
No. of patientsNo. of eventsID (per 1,000 patient-years) (95% CI)No. of patientsNo. of eventsID (per 1,000 patient-years) (95% CI)
Men (years of age)
    35–4425,016330.29 (0.19–0.38)25,012970.71 (0.57–0.86)2.45 (1.65–3.64)§
    45–5447,1151060.47 (0.38–0.56)47,1022510.99 (0.86–1.11)2.04 (1.63–2.56)§
    55–6463,5102981.04 (0.92–1.16)63,4856561.98 (1.83–2.13)1.90 (1.65–2.18)§
    65–7469,7621,1823.47 (3.27–3.67)69,7181,5304.46 (4.23–4.68)1.28 (1.19–1.38)§
    75–8420,53189210.09 (9.43–10.76)20,5078509.80 (9.14–10.46)0.98 (0.89–1.08)§
    >841,36911324.23 (19.76–28.70)1,3647316.03 (12.35–19.71)0.65 (0.48–0.87)§
    Total227,3032,6242.48 (2.38–2.57)227,2893,4603.01 (2.91–3.11)1.28 (1.21–1.34)
Women (years of age)
    35–4419,31470.08 (0.02–0.13)19,313270.25 (0.16–0.34)3.19 (1.39–7.33)§
    45–5449,468730.31 (0.24–0.38)49,4612720.99 (0.87–1.11)3.11 (2.39–4.03)§
    55–6483,5484881.24 (1.13–1.35)83,5121,6233.59 (3.42–3.77)2.81 (2.53–3.11)§
    65–7477,4042,1545.71 (5.47–5.95)77,2714,20210.84 (10.51–11.17)1.89 (1.79–1.99)§
    75–8425,9742,10818.73 (17.93–19.53)25,8792,65024.16 (23.24–25.08)1.30 (1.23–1.38)§
    >842,02328741.33 (36.55–46.11)2,00624537.58 (32.87–42.28)0.91 (0.77–1.08)§
    Total257,7315,1174.21 (4.09–4.32)257,4989,0196.75 (6.61–6.89)1.72 (1.66–1.78)
  • * Inconsistency between total population and population summed for individual variable is due to missing information.

  • Based on Poisson assumption, ID, incidence density.

  • Based on Cox proportional hazard regression model.

  • § Adjusted for geographic area and urbanization status.

  • Adjusted for age as a continuous variable, geographic area, and urbanization status.