A Threshold Hazard Model for Estimating Serious Infection Risk Following Anti-Tumor Necrosis Factor Therapy in Rheumatoid Arthritis Patients

被引:9
作者
Fu, Bo [1 ,2 ]
Lunt, Mark [1 ]
Galloway, James [1 ]
Dixon, Will [1 ]
Hyrich, Kimme [1 ]
Symmons, Deborah [1 ]
机构
[1] Univ Manchester, Arthrit Res UK Epidemiol Unit, Manchester M13 9PL, Lancs, England
[2] Univ Manchester, Ctr Biostat, Inst Populat Hlth, Manchester M13 9PL, Lancs, England
基金
英国医学研究理事会;
关键词
Anti-tumor Necrosis Factor therapy; Baseline hazard; B-spline; Hazard ratio; Infection risk; Rheumatoid arthritis; PROPORTIONAL-HAZARDS; BIOLOGICS-REGISTER; REGRESSION-MODELS; SPLINE FUNCTIONS; SURVIVAL-DATA; COVARIATE;
D O I
10.1080/10543406.2011.616973
中图分类号
R9 [药学];
学科分类号
100702 [药剂学];
摘要
Over recent years novel biologic agents have been developed for the treatment of rheumatoid arthritis. The most common type of biologic agent in use in the United Kingdom is the anti-tumor necrosis factor inhibitor class. To fully appreciate the potential risks of anti-tumor necrosis factor therapy in patients, knowledge about the baseline hazard (risk pattern) and the characteristics of patients associated with serious infection is important. We propose a nonproportional hazard model for estimating the infection risk, by including the drug exposure history information into the baseline hazard. We found that the infection risk reaches a peak within 1 month after drug exposure starts and then declines steadily for nearly 2 years before stabilizing out.
引用
收藏
页码:461 / 476
页数:16
相关论文
共 22 条
[1]
Aalen O., 1980, LECT NOTES STAT, P1
[2]
Time-dependent hazard ratio: Modeling and hypothesis testing with application in lupus nephritis [J].
Abrahamowicz, M ;
MacKenzie, T ;
Esdaile, JM .
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 1996, 91 (436) :1432-1439
[3]
[Anonymous], 1978, A Practical Guide to Splines
[4]
The safety of anti-tumour necrosis factor therapy in rheumatoid arthritis [J].
Askling, Johan ;
Dixon, Will .
CURRENT OPINION IN RHEUMATOLOGY, 2008, 20 (02) :138-144
[5]
Bennett S, 1983, Stat Med, V2, P273, DOI 10.1002/sim.4780020223
[6]
COX DR, 1972, J R STAT SOC B, V34, P187
[7]
Dierckx P, 1993, CURVE SURFACE FITTIN
[8]
Serious infection following anti-tumor necrosis factor α therapy in patients with rheumatoid arthritis -: Lessons from interpreting data from observational studies [J].
Dixon, W. G. ;
Symmons, D. P. M. ;
Lunt, M. ;
Watson, K. D. ;
Hyrich, K. L. ;
Silman, A. J. .
ARTHRITIS AND RHEUMATISM, 2007, 56 (09) :2896-2904
[9]
Rates of serious infection, including site-specific and bacterial intracellular infection, in rheumatoid arthritis patients receiving anti-tumor necrosis factor therapy - Results from the British Society for Rheumatology Biologics Register [J].
Dixon, W. G. ;
Watson, K. ;
Lunt, M. ;
Hyrich, K. L. ;
Silman, A. J. ;
Symmons, D. P. M. .
ARTHRITIS AND RHEUMATISM, 2006, 54 (08) :2368-2376
[10]
A relative survival regression model using B-spline functions to model non-proportional hazards [J].
Giorgi, R ;
Abrahamowicz, M ;
Quantin, C ;
Bolard, P ;
Esteve, J ;
Gouvernet, J ;
Faivre, J .
STATISTICS IN MEDICINE, 2003, 22 (17) :2767-2784