@article{article, title  = {{Analysis of change in patient-reported outcome measures with floor and ceiling effects using the multilevel Tobit model: a simulation study and an example from a National Joint Register using body mass index and the Oxford Hip Score}},

 publisher = {{BMJ}},

 url = {{http://dx.doi.org/10.1136/bmjopen-2019-033646 }},

 year = {{2020}},

 month = {{8}},

 author = {{Sayers A and Whitehouse MR and Judge A and MacGregor AJ and Blom AW and Ben-Shlomo Y}},

 doi = {{10.1136/bmjopen-2019-033646}},

 volume = {{10}},

 journal = {{BMJ Open}},

 issue = {{8}},

 pages = {{e033646-e033646}},

 note = {{Accessed on 2024/12/22}}}