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European Journal of Pain (London, England)
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Table 2

Incidence rates of mid‐back pain per 100,000 population with 95% confidence intervals and incident number of mid‐back pain after traffic collisions occurring in Saskatchewan (Canada) during a 2‐year period (1998–1999), stratified by year of accrual, sex and age group

SexAge group (years)
18–2324–2930–3940–49≥50Overall
Year 1
Men244.6 (203.9–293.4) n = 116200.8 (161.7–249.3) n = 82196.0 (167.0–230.2) n = 149162.5 (136.1–194.0) = 12285.2 (71.0–102.2) n = 116155.8 (143.7–169.0) n 585
Women558.1 (493.0–631.7) n = 250498.9 (433.8–573.9) n = 196384.8 (343.1–431.6) n = 292324.2 (285.3–368.4) n = 235150.5 (132.4–171.1) n = 233311.4 (294.3–329.5) n = 1206
Both sexes396.9 (358.2–439.7) = 366347.0 (308.5–390.2) = 278290.3 (264.5–318.7) n = 441241.9 (218.1–268.4) = 357120.0 (108.0–133.2) n = 349234.8 (224.2–245.9) n = 1791
Year 2
Men293.6 (261.8–329.1) n = 141225.1 (197.5–256.5) n = 93195.2 (169.7–224.6) n = 148141.5 (120.0–166.9) n = 10883.6 (67.4–103.6) n = 114159.8 (136.9–186.6) n = 604
Females587.7 (542.0–637.2) n = 265466.5 (426.0–510.8) n = 184372.2 (336.2–412.0) n = 280317.0 (283.9–353.9) n = 233166.8 (143.3–194.2) n = 259314.3 (281.4–351.0) n = 1221
Both sexes436.0 (396.9–478.9) n = 406343.0 (308.5–381.3) n = 277283.4 (252.2–318.3) n = 428227.6 (199.9–259.2) n = 341127.9 (107.5–152.1) n = 373238.1 (209.7–270.4) n = 1825

n is the absolute number of incident mid‐back pain. Incidence rates were calculated using the Saskatchewan mid‐year population as denominator.

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