Table 2

Incidence and HRs of osteoporosis by demographic characteristics among patients with or without stroke

VariablesPatients with strokePatients without strokeCompared with non-stroke group
OsteoporosisPYRate†OsteoporosisPYRate†IRR (95% CI)‡Adjusted HR (95% CI)§P value¶
All153746 622.4832.975830408 189.5014.282.31 (2.18 to 2.44)***1.82 (1.71 to 1.94)***
Gender
 Men52929 088.0318.191567261 343.155.993.03 (2.75 to 3.35)***2.80 (2.49 to 3.16)***<0.001
 Women100817 534.4557.494263146 846.3529.031.98 (1.85 to 212)***1.55 (1.44 to 1.68)***
Stratify age
 50–5930314 289.8721.20696125 926.865.533.84 (3.35 to 4.39)***2.79 (2.42 to 3.22)***<0.001
 60–6960817 536.2434.672078141 367.5814.692.36 (2.15 to 2.58)***1.77 (1.61 to 1.95)***
 >7062614 796.3742.313056140 895.0621.691.95 (1.79 to 2.13)***1.61 (1.47 to 1.76)***
  • ***p<0.001.

  • †Incidence rate in per 1000 person-years.

  • ‡IRR in per 1000 person-years.

  • §Model adjusted for age, sex, relevant comorbidities and medication.

  • ¶P value for interaction.

  • IRR, incidence rate ratio; PY, person-years.