ANALYSIS OF THE TIME TO RELIEVING PAIN IN PATIENTS WITH CHRONIC NON-SPECIFIC LOW BACK PAIN VIA COX PROPORTIONAL HAZARD MODEL

Jéssica Ferreira Silva, Richard Eloin Liebano, Juliana Barbosa Corrêa, Raul Yukihiro Matsushita, Eduardo Yoshio Nakano

Abstract


The aim of this study was to evaluate the time to relieving pain intensity in patients with non-specific chronic low back pain treated by interferential current. Knowledge of the number of sessions needed for relieving pain intensity is very important because it can be used as a measure of treatment effectiveness, and assists the physiotherapist in choosing the best treatment to be used. The analysis was conducted on a sample of 150 patients with non-specific chronic low back pain, using the Cox proportional hazard model. All analysis were performed by the free software R.

Keywords


Survival analysis; censored data; electrical simulation; low back pain

References


AIRAKSINEN O.; BROX J. I.; CEDRASCHI C.; HILDEBRANDT J.; KLABER-MOFFETT J.; KOVACS F., et al. Chapter 4. European guidelines for the management of chronic nonspecific low back pain. Eur. Spine J. Suppl 2:S192- 300, 2006.

BRUNELLO, G. H. V; NAKANO, E. Y. Inferência bayesiana no modelo weibull discreto em dados com presença de censura. TEMA - Tend. Mat. Apl. Comput., v.16, n.2, p.97-110, 2015.

CARRASCO, C. G.; TUTIA, M. H.; NAKANO, E. Y. Intervalos de confiança para os parâmetros do modelo geométrico com inflação de zeros. TEMA - Tend. Mat. Apl. Comput., v.13, n.3, p.247-255, 2012.

CORRÊA J. B.; COSTA L. O.; OLIVEIRA N. T.; LIMA W. P.; SLUKA K. A.; LIEBANO R. E. Effects of the carrier frequency of interferential current on pain modulation and central hypersensitivity in people with chronic nonspecific low back pain: A randomized placebo-controlled trial. Eur. J. Pain. 2016. [Epub ahead of print]

COSTA L. O.; MAHER C. G.; LATIMER J.; HODGES P. W.; HERBERT R. D.; REFSHAUGE K. M., et al. Motor control exercise for chronic low back pain: a randomized placebo-controlled trial. Phys. Ther, v. 89, n.12, p.1275-86, 2009.

COX, D. R. Regression models and life tables (with discussions). J.R. Stat. Soc. B, v.34, n.2, p.187-202, 1972.

COX, D. R.; SNELL, E. J. A general definition of residuals. J.R. Stat. Soc. B, v.30, n.2, p.248-275, 1968.

DELITTO A; GEORGE S. Z; VAN DILLEN L. R.; WHITMAN J. M.; SOWA G.; SHEKELLE P., et al. Low back pain. J Orthop Sports Phys Ther. v.42, n.4,:A1-57, 2012.

FACCI L. M.; NOWOTNY J. P.; TORMEM F.; TREVISANI V. F. Effects of transcutaneous electrical nerve stimulation (TENS) and interferential currents (IFC) in patients with nonspecific chronic low back pain: randomized clinical trial. Sao Paulo Med. J. v.129, n.4:206-16, 2011.

FUENTES J. P, ARMIJO OLIVO S., MAGEE D. J., GROSS D. P. Effectiveness of interferential current therapy in the management of musculoskeletal pain: a systematic review and meta-analysis. Phys. Ther. v.90, n.9, p.1219-38,2010.

GRAMBSCH, P. M.; THERNEAU, T. M. Proportional hazards tests and diagnostics based on weighted residuals.Biometrika, v.81, n.3, p.515-526, 1994.

KAPLAN, E. L.; MEIER, P. Nonparametric estimation from incomplete observations. J. Am. Stat. Assoc., v.53,n.282, p.457-481, 1958.

LAWLESS, J. F. Statistical models and methods for lifetime data. 2.ed. New Jersey: John Wiley & Sons, 2003

MAIA, M. A.; NAKANO, E. Y. Análise do tempo até a re-hospitalização de pacientes com esquizofrenia via modelo de riscos proporcionais de Cox. Semina: Ciências Exatas e Tecnológicas, v.37, n.2, p.51-58, 2016.

NAKANO, E. Y.; CARRASCO, C. G. Uma avaliação do uso de um modelo contínuo na análise de dados discretos de sobrevivência. TEMA - Tend. Mat. Apl. Comput., v.7, n.1, p.91-100, 2006.

NAKANO, E. Y.; CUNHA, J. F. Análise do efeito da camuflagem no tempo de segregação em regiões texturizadas utilizando o modelo de riscos proporcionais de Cox. Semina: Ciências Exatas e Tecnológicas, v.33, n.2, p.141-148, 2012.

NETER, J.; WASSERMAN, W.; KUTNER, M. H. Applied Linear Regression Models. 3.ed, Homewood, IL: Irwin, 1990.

OSTELO, R. W.; de VET, H. C. Clinically important outcomes in low back pain. Best Pract Res Clin Rheumatol., v.19, n.4, p.593-607, 2005.

R CORE TEAM. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0, URL http://www.R-project.org, 2016.

SANTOS, R. O; NAKANO, E. Y. Análise do tempo de permanência de trabalhadores no mercado de trabalho do Distrito Federal via modelo de riscos proporcionais de Cox e Log-normal. Rev. Bras. Biom., v.33, n.4, p.570-584, 2015.

SCHOENFELD, D. Partial Residuals for the proportional hazard regression model. Biometrika, v.69, n.1, p.329- 241, 1982.

TULDER, M. V. European guidelines for the management of chronic nonspecific low back pain. Eur. Spine J. (15(Suppl 2)):134-35, 2006.




DOI: http://dx.doi.org/10.5902/2179460X24102

Refbacks

  • There are currently no refbacks.


Ciência e Natura

EISSN  2179-460X

ISSN 0100-8307

DOI 10.5902

 

contador de visitas
Access since January, 18th, 2013.


Licença Creative Commons

This work is licensed under a

 Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0).