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. Author manuscript; available in PMC: 2023 Aug 1.
Published in final edited form as: Am J Ind Med. 2022 Jun 4;65(8):627–643. doi: 10.1002/ajim.23403

TABLE III.

Cohort data (N=11,184): Reinjury rates per 100 worker-years (unadjusted), by age and timescale

Calendar quarters FTE quarters
(hours worked/520)
Rate (95% CI) Rate (95% CI)
Overall 11,184 11.0 (10.4–11.7) 18.0 (17.0–19.1)
18–24 901 15.5 (13.1–18.4) 23.5 (19.8–27.8)
25–34 2749 11.7 (10.5–13.1) 18.2 (16.3–20.4)
35–44 2774 12.0 (10.7–13.4) 19.5 (17.4–21.7)
45–54 2442 10.4 (9.2–11.8) 17.2 (15.2–19.5)
55–64 1819 9.0 (7.7–10.6) 14.6 (12.5–17.0)
65+ 499 5.1 (3.5–7.6) 13.2 (8.9–19.5)
<65 10,685 11.3 (10.7–12.0) 18.2 (17.1–19.2)

Abbreviations: CI, confidence interval; FTE, full-time equivalent.