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Table 2 AxSpA classification by chart review

From: Cohort identification of axial spondyloarthritis in a large healthcare dataset: current and future methods

  All High risk for axSpA Moderate risk for axSpA Low risk for axSpA
No. [%]
(95% CI)
n = 600
AS
No. (95% CI)
n = 100
HLA-B27+
No. (95% CI)
n = 100
Non-AS SpA subtype
No. (95% CI)
n = 100
Sacroiliitis
No. (95% CI)
n = 100
SpA mimics
No. (95% CI)
n = 100
Chronic back pain
No. (95% CI)
n = 100
Yes AxSpA 162 [27.0] (23.5–30.7) 87 (78.8–92.9) 38 (28.5–48.3) 27 (18.6–36.8) 7 (2.9–13.9) 2 (0.2–7.0) 1 (0.0–5.5)
No AxSpA 409 [68.2] (64.3–71.9) 4 (1.1–9.9) 57 (46.7–66.9) 63 (52.8–72.4) 89 (81.2–94.4) 97 (91.5–99.4) 99 (94.6–100.0)
Uncertain AxSpA 29 [4.8] (3.3–6.9) 9 (4.2–16.4) 5 (1.6–11.3) 10 (4.9–17.6) 4 (1.1–9.9) 1 (0.0–5.5) 0 (0.0–3.6)
  1. No. number, CI confidence interval