Table 4.
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Cumulative Incidence Point Estimates, and Person-Time Incidence Rate of Spine Metastasis by Primary Cancer Type

Years elapsed since primary cancer diagnosisCumulative incidence percent (95% CI)Incidence rate per 1000 person-years
(95% CI)		Risk ratio
(95% CI)
Lung1-year7.8 (7.7–8.0)54.3 (53.2–55.4)10.3 (9.7–10.9)
5-year9.9 (9.7–10.1)
10-year10.3 (10.1–10.5)
Breast1-year1.5 (1.4–1.5)7.1 (6.9–7.3)1.4 (1.3–1.4)
5-year3.8 (3.7–3.9)
10-year5.4 (5.2–5.5)
Prostate1-year1.8 (1.7–1.9)7.3 (7.1–7.5)1.4 (1.3–1.5)
5-year4.0 (3.9–4.1)
10-year5.5 (5.4–5.7)
Gastrointestinal1-year1.0 (0.9–1.0)5.3 (5.1–5.5)Reference
5-year2.0 (2.0–2.1)
10-year2.6 (2.5–2.7)
Myeloma1-year3.6 (3.4–3.7)13.4 (12.9–13.9)2.5 (2.4–2.7)
5-year4.8 (4.6–4.9)
10-year5.4 (5.2–5.6)
Urological1-year2.0 (1.9–2.1)8.3 (8.0–8.7)1.6 (1.5–1.7)
5-year3.7 (3.6–3.9)
10-year4.6 (4.4–4.8)
Years elapsed since primary cancer diagnosisCumulative incidence percent (95% CI)Incidence rate per 1000 person-years
(95% CI)		Risk ratio
(95% CI)
Lung1-year7.8 (7.7–8.0)54.3 (53.2–55.4)10.3 (9.7–10.9)
5-year9.9 (9.7–10.1)
10-year10.3 (10.1–10.5)
Breast1-year1.5 (1.4–1.5)7.1 (6.9–7.3)1.4 (1.3–1.4)
5-year3.8 (3.7–3.9)
10-year5.4 (5.2–5.5)
Prostate1-year1.8 (1.7–1.9)7.3 (7.1–7.5)1.4 (1.3–1.5)
5-year4.0 (3.9–4.1)
10-year5.5 (5.4–5.7)
Gastrointestinal1-year1.0 (0.9–1.0)5.3 (5.1–5.5)Reference
5-year2.0 (2.0–2.1)
10-year2.6 (2.5–2.7)
Myeloma1-year3.6 (3.4–3.7)13.4 (12.9–13.9)2.5 (2.4–2.7)
5-year4.8 (4.6–4.9)
10-year5.4 (5.2–5.6)
Urological1-year2.0 (1.9–2.1)8.3 (8.0–8.7)1.6 (1.5–1.7)
5-year3.7 (3.6–3.9)
10-year4.6 (4.4–4.8)
Table 4.
Open in new tab

Cumulative Incidence Point Estimates, and Person-Time Incidence Rate of Spine Metastasis by Primary Cancer Type

Years elapsed since primary cancer diagnosisCumulative incidence percent (95% CI)Incidence rate per 1000 person-years
(95% CI)		Risk ratio
(95% CI)
Lung1-year7.8 (7.7–8.0)54.3 (53.2–55.4)10.3 (9.7–10.9)
5-year9.9 (9.7–10.1)
10-year10.3 (10.1–10.5)
Breast1-year1.5 (1.4–1.5)7.1 (6.9–7.3)1.4 (1.3–1.4)
5-year3.8 (3.7–3.9)
10-year5.4 (5.2–5.5)
Prostate1-year1.8 (1.7–1.9)7.3 (7.1–7.5)1.4 (1.3–1.5)
5-year4.0 (3.9–4.1)
10-year5.5 (5.4–5.7)
Gastrointestinal1-year1.0 (0.9–1.0)5.3 (5.1–5.5)Reference
5-year2.0 (2.0–2.1)
10-year2.6 (2.5–2.7)
Myeloma1-year3.6 (3.4–3.7)13.4 (12.9–13.9)2.5 (2.4–2.7)
5-year4.8 (4.6–4.9)
10-year5.4 (5.2–5.6)
Urological1-year2.0 (1.9–2.1)8.3 (8.0–8.7)1.6 (1.5–1.7)
5-year3.7 (3.6–3.9)
10-year4.6 (4.4–4.8)
Years elapsed since primary cancer diagnosisCumulative incidence percent (95% CI)Incidence rate per 1000 person-years
(95% CI)		Risk ratio
(95% CI)
Lung1-year7.8 (7.7–8.0)54.3 (53.2–55.4)10.3 (9.7–10.9)
5-year9.9 (9.7–10.1)
10-year10.3 (10.1–10.5)
Breast1-year1.5 (1.4–1.5)7.1 (6.9–7.3)1.4 (1.3–1.4)
5-year3.8 (3.7–3.9)
10-year5.4 (5.2–5.5)
Prostate1-year1.8 (1.7–1.9)7.3 (7.1–7.5)1.4 (1.3–1.5)
5-year4.0 (3.9–4.1)
10-year5.5 (5.4–5.7)
Gastrointestinal1-year1.0 (0.9–1.0)5.3 (5.1–5.5)Reference
5-year2.0 (2.0–2.1)
10-year2.6 (2.5–2.7)
Myeloma1-year3.6 (3.4–3.7)13.4 (12.9–13.9)2.5 (2.4–2.7)
5-year4.8 (4.6–4.9)
10-year5.4 (5.2–5.6)
Urological1-year2.0 (1.9–2.1)8.3 (8.0–8.7)1.6 (1.5–1.7)
5-year3.7 (3.6–3.9)
10-year4.6 (4.4–4.8)
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