Response to letter: Observational studies investigating hip fracture risk: a fundamental methodological issue?

J Intern Med. 2018 Sep;284(3):327. doi: 10.1111/joim.12775. Epub 2018 Jun 14.

H K M Bergholdt^{1

2}, C Ellervik^{2

3

4

5}, B G Nordestgaard^{3

6

7

8}

¹ Department of Clinical Biochemistry, Copenhagen University Hospital, Naestved, Slagelse, Ringsted, Denmark.
² The Danish General Suburban Population Study, Copenhagen University Hospital, Naestved, Slagelse, Ringsted, Denmark.
³ The Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
⁴ Department of Production, Research and Innovation, Region Zealand, Sorø, Denmark.
⁵ Department of Laboratory Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
⁶ Department of Clinical Biochemistry, Copenhagen University Hospital, Herlev and Gentofte Hospital, Herlev, Denmark.
⁷ The Copenhagen General Population Study, Copenhagen University Hospital, Herlev and Gentofte Hospital, Herlev, Denmark.
⁸ The Copenhagen City Heart Study, Copenhagen University Hospital, Frederiksberg Hospital, Frederiksberg, Denmark.

No abstract available

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