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Table 1 Characteristics of the 204 patients included in the analysis

From: Correlation of enthesitis indices with disease activity and function in axial and peripheral spondyloarthritis: a cross-sectional study comparing MASES, SPARCC and LEI

  All Centers Hospital de Clínicas de Porto Alegre, Porto Alegre (South Brazil) Hospital Universitário Evangélico, Curitiba (South Brazil) Hospital Universitário Getúlio Vargas, Manaus (North Brazil) P value
Number of patients 204 54 84 66  
Male N (%) 131 (64.2) 28 (51.9) 55 (65.5) 48 (72.7) 0.057
Age in years
(Mean ± SD, range)
48.6 ± 12.8
(18–87)
51.3 ± 12.2
(22–77)
47.8 ± 13.2
(18–87)
47.5 ± 12.7
(18–72)
0.213
Disease duration in years
(Mean ± SD, range)
17.2 ± 10.6
(2–58)
17.4 ± 9.2
(4–44)
15.9 ± 10.9
(2–55)
18.5 ± 11.2
(2–58)
0.209
Self-reported ethnicity: white N (%) 126 (61.8) 41 (75.9) 67 (79.8) 18 (27.3) <  0.001
Patients fulfilling ASAS classification criteria for Peripheral SpA N (%) 59 (28.9) 17 (31.5) 29 (34.5) 13 (19.7) 0.123
Patients fulfilling ASAS classification criteria for Axial SpA N (%) 145 (71.1) 37 (68.5) 55 (65.5) 53 (80.3) 0.123
Patients with at least one enthesitis N(%) 124 (60.8) 44 (81.5) 43 (51.2) 37 (56.1) 0.001
Composite activity index (mean ± SD)
 BASDAI* 3.5 (2.3) 4.7 (2.6) 3.1 (2.0) 3.0 (2.2) 0.002
 ASDAS CRP* 2.3 (1.2) 2.8 (1.2) 2.4 (1.0) 1.8 (1.2) 0.001
 ASDAS ESR* 2.6 (1.0) 2.8 (1.2) 2.6 (1.0) 2.5 (1.0) 0.610
 DAS- 28 ** 3.6 (1.4) 3.9 (1.4) 3.7 (1.5) 3.2 (1.2) 0.460
Enthesitis indices: Median (P25%, P75%), range / Mean ± SD
 MASES 1 (0, 5), 0–13/ 2.8 ± 3.9 3 (0, 7), 0–13/ 4.4 ± 4.3 0 (0, 3), 0–13/ 2.2 ± 3.5 0 (0, 3), 0–13/ 2.3 ± 3.6 < 0.001
 SPARCC 0 (0, 3), 0–16/ 2.4 ± 3.9 2 (0, 6), 0–16/ 3.7 ± 4.6 0 (0, 3), 0–13/ 1.8 ± 3.0 0 (0, 2), 0–16/ 2.1 ± 4.0 0.005
 LEI 0 (0, 2), 0–6/ 1.0 ± 1.6 0 (0, 2), 0–6/ 1.5 ± 2.0 0 (0, 1), 0–6/ 0.8 ± 1.5 0 (0, 1), 0–6/ 0.7 ± 1.4 0.016
  1. SD: standard deviation; SpA: Spondyloarthritis; ASAS: Assessment of Spondyloarthritis International Society; MASES: Maastricht Ankylosing Spondylitis Enthesitis Score; SPARCC: Spondyloarthritis Research Consortium of Canada Index; LEI: Leeds Enthesitis Index * Reported only for the 145 patients fulfilling ASAS criteria for axial spondyloarthritis ** Reported only for the 59 patients fulfilling ASAS criteria for peripheral spondyloarthritis