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. 2021 Mar 24;92(4):376–380. doi: 10.1080/17453674.2021.1898782

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© 2021 The Author(s). Published by Taylor & Francis on behalf of the Nordic Orthopedic Federation.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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graphic file with name IORT_A_1898782_F0002a_C.jpg — Incidence rate ratios (y-axis, IRR) of emergency hip surgeries due to fracture (red) and the IRR of elective hip surgeries due to osteoarthritis (blue) in Norway, January 3, 2020–May 21, 2020 with January 3–January 16 as base level with 95% confidence intervals (CI). Red dots/line = emergency hip fracture surgeries. Blue dots/line = elective hip osteoarthritis surgeries. The red and blue 2-weekly dots are graphed next to each other for improved readability. Vertical line represents the national implementation of lockdown strategies on March 13, 2020.

graphic file with name IORT_A_1898782_F0002b_C.jpg — Incidence rate ratios (y-axis, IRR) of emergency hip surgeries due to fracture (red) and the IRR of elective hip surgeries due to osteoarthritis (blue) in Norway, January 3, 2020–May 21, 2020 with January 3–January 16 as base level with 95% confidence intervals (CI). Red dots/line = emergency hip fracture surgeries. Blue dots/line = elective hip osteoarthritis surgeries. The red and blue 2-weekly dots are graphed next to each other for improved readability. Vertical line represents the national implementation of lockdown strategies on March 13, 2020.