Association between platelet-to-lymphocyte ratio and neutrophil-to-lymphocyte ratio with disease activity in Takayasu arteritis patients
10.3760/cma.j.issn.0253-3758.2018.09.008
- VernacularTitle: 血小板/淋巴细胞比值和粒细胞/淋巴细胞比值与大动脉炎疾病活动性的关系
- Author:
Zhiqin LI
1
;
Zhaohui ZHENG
;
Wanglei DU
;
Linxuan PANG
;
Ying LI
;
Zhenbiao WU
;
Ping ZHU
Author Information
1. Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
- Publication Type:Clinical Trail
- Keywords:
Takayasu arteritis;
Blood platelets;
Lymphocytes;
Kerr score
- From:
Chinese Journal of Cardiology
2018;46(9):713-718
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the relation between platelet-to-lymphocyte ratio (PLR) or neutrophil-to-lymphocyte ratio (NLR) with disease activity in Takayasu arteritis (TA) patients.
Methods:Present retrospective study involved 289 patients with TA, who were hospitalized in our department between January 2010 and October 2017, and 280 age and gender matched healthy controls,who underwent thealth examination in our health examination center during the same period (control group). TA patients were further divided into active and inactive groups (180 and 109 cases respectively) according to Kerr scores. The clinical data were compared between groups. Pearson correlation analysis was used to evaluate the relationship between PLR or NLR and disease activity (Kerr score or C-reactive protein or erythrocyte sedimentation rate). Receiver operating characteristic (ROC) curve was employed to judge the cut-off value of disease activity for TA patients.
Results:PLR and NLR were significantly higher in TA group than in control group(137.33 (97.38, 193.37) vs. 120.55 (96.86, 144.60) and 2.38 (1.76, 3.57) vs. 1.66 (1.35, 2.08) , respectively, all P<0.001). PLR and NLR were significantly higher in active TA group than in inactive TA group (163.43 (123.64, 224.15) vs. 110.53 (84.22, 147.24) and 2.59 (1.96, 3.94) vs. 1.95 (1.53, 2.86) respectively, all P<0.001). PLR and NLR of active group were significantly decreased after 6 months treatment (164.05 (123.29, 226.29) vs. 104.67 (77.22, 138.43) and 2.58 (1.96, 3.91) vs. 2.15 (1.67, 2.60) respectively, all P<0.001). PLR was positively correlated with Kerr score (r=0.439, P<0.001), C-reactive protein (r=0.328, P<0.001) and erythrocyte sedimentation rate (r=0.410, P<0.001). NLR also exhibited a positive relationship with Kerr score (r=0.235, P<0.001), C-reactive protein (r=0.169, P=0.005) and erythrocyte sedimentation rate (r=0.123, P=0.037). A PLR level of 176.709 was shown to be the best predictive cut-off value for TA disease activity (sensitivity 44.6%, specificity 93.0%, and area under the curve=0.766).A NLR level of 2.128 was shown to be the best predictive cut-off value for TA disease activity (sensitivity 70.9%, specificity 47.7%, and area under the curve=0.691).
Conclusion:PLR and NLR are useful markers for predicting disease activity of TA patients.
