Validation of an algorithm for identifying MS cases in administrative health claims datasets

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.

From the Department of Veterans Affairs Post Deployment Health Services (W.J.C., M.T.W.), Multiple Sclerosis Center of Excellence; University of Maryland (W.J.C.), Baltimore; Departments of Internal Medicine and Community Health Sciences (R.A.M., S.L.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Neurology Department (A.L.-G., L.H.C.), Kaiser Permanente Southern California, Los Angeles; Georgetown University School of Medicine (M.T.W.), Washington, DC; University of Colorado (J.C.), Denver; Stanford University School of Medicine (L.M.N.), CA; McKing Consulting Corp (W.E.K., L.W.), Atlanta, GA; Faculty of Medicine (Neurology) and Centre for Brain Health (H.T.), University of British Columbia, Vancouver; College of Pharmacy and Nutrition (C.E.), University of Saskatchewan; Health Quality Council (Saskatchewan) (S.Y.), Saskatoon, Canada; and National Multiple Sclerosis Society (N.G.L.), New York, NY.