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Bias in case-control studies. A review.
Kopec JA, Esdaile JM. Kopec JA, et al. J Epidemiol Community Health. 1990 Sep;44(3):179-86. doi: 10.1136/jech.44.3.179. J Epidemiol Community Health. 1990. PMID: 2273353 Free PMC article. Review. No abstract available.
The Quebec Back Pain Disability Scale. Measurement properties.
Kopec JA, Esdaile JM, Abrahamowicz M, Abenhaim L, Wood-Dauphinee S, Lamping DL, Williams JI. Kopec JA, et al. Spine (Phila Pa 1976). 1995 Feb 1;20(3):341-52. doi: 10.1097/00007632-199502000-00016. Spine (Phila Pa 1976). 1995. PMID: 7732471
Functional disability scales for back pain.
Kopec JA, Esdaile JM. Kopec JA, et al. Spine (Phila Pa 1976). 1995 Sep 1;20(17):1943-9. doi: 10.1097/00007632-199509000-00021. Spine (Phila Pa 1976). 1995. PMID: 8560347 Review.
Can the health utilities index measure change?
Kopec JA, Schultz SE, Goel V, Ivan Williams J. Kopec JA, et al. Med Care. 2001 Jun;39(6):562-74. doi: 10.1097/00005650-200106000-00005. Med Care. 2001. PMID: 11404641
Predictors of back pain in a general population cohort.
Kopec JA, Sayre EC, Esdaile JM. Kopec JA, et al. Spine (Phila Pa 1976). 2004 Jan 1;29(1):70-7; discussion 77-8. doi: 10.1097/01.BRS.0000103942.81227.7F. Spine (Phila Pa 1976). 2004. PMID: 14699279
226 results