Table 5 Continuity of care and major osteoporotic fracture risk stratified by sex, age, and osteoporosis history.
Variables | Number of subjects | Number of fractures | Person years | Incidence rate (95% CI) per 100,000 person years | Adjusted hazard ratio (95% CI) |
|---|---|---|---|---|---|
Sex | |||||
Male | |||||
Good COC index (COC index ≥ 0.75) | 2116 | 152 | 8770 | 1733 (1479–2032) | 1.00 (Reference) |
Bad COC index (COC index < 0.75) | 287 | 28 | 1240 | 2259 (1560–3271) | 1.23 (0.81–1.88) |
Female | |||||
Good COC index (COC index ≥ 0.75) | 5511 | 936 | 24,457 | 3827 (3590–4080) | 1.00 (Reference) |
Bad COC index (COC index < 0.75) | 801 | 194 | 3762 | 5157(4480–5936) | 1.33 (1.14–1.62) |
Age | |||||
60–69 years | |||||
Good COC index (COC index ≥ 0.75) | 3108 | 378 | 15,458 | 2445 (2211–2705) | 1.00 (Reference) |
Bad COC index (COC index < 0.75) | 555 | 113 | 2798 | 4038 (3358–4856) | 1.53(1.23–1.90) |
70 years or over | |||||
Good COC index (COC index ≥ 0.75) | 4519 | 710 | 17768 | 3996 (3713–4301) | 1.00 (Reference) |
Bad COC index (COC index < 0.75) | 533 | 109 | 2204 | 4947 (4100–5968) | 1.13 (0.92–1.39) |
History of osteoporosis | |||||
No | |||||
Good COC index (COC index ≥ 0.75) | 5690 | 713 | 25,362 | 2811 (2612–3025) | 1.00 (Reference) |
Bad COC index (COC index < 0.75) | 708 | 124 | 3322 | 3733 (3130–4451) | 1.39 (1.14–1.69) |
Yes | |||||
Good COC index (COC index ≥ 0.75) | 1937 | 375 | 7864 | 4768 (4309–5276) | 1.00 (Reference) |
Bad COC index (COC index < 0.75) | 380 | 98 | 1680 | 5834 (4786–7112) | 1.38 (1.10–1.74) |
