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Tables
- Table 1:
Included patient referrals for lumbar spine computed tomography stratified by sex and age category
Age category, yr No. of records
n = 14 370Female sex 7795 20–24 132 25–29 249 30–34 356 35–39 497 40–44 718 45–49 863 50–54 1051 55–59 1020 60–64 966 65–69 850 70–74 525 75–79 314 80–84 168 ≥ 85 86 Male sex 6575 20–24 119 25–29 209 30–34 338 35–39 414 40–44 577 45–49 742 50–54 869 55–59 918 60–64 880 65–69 636 70–74 457 75–79 237 80–84 128 ≥ 85 51 - Table 2:
Rate ratios comparing age- and sex-standardized computed tomography rate estimates in adjacent years
Year comparison Rate ratio* (95% CI) 2014 to 2013 1.137 (1.084–1.194) 2015 to 2014 1.117 (1.067–1.169) 2016 to 2015 0.896 (0.857–0.938) Note: CI = confidence interval.
↵* Calculated by dividing the more recent year by the previous year.
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