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Table 2 Pain, total BQ scores and proportion of subjects with a poor outcome across Start Back Tool (SBT) categories at 14, 30 and 90 days follow up

From: Relationship between STarT Back Screening Tool and prognosis for low back pain patients receiving spinal manipulative therapy

SBT Category 14 days (n = 235) 30 days (n = 131) 90 days (n = 150)
  Median Pain (25, 75) Median BQ (25, 75)** Median Pain (25, 75) Median BQ (25, 75) Median Pain (25, 75) Median BQ (25, 75)
Low 2 (1–3) 10 (3–18) 1 (1–3) 6 (2–14) 1 (1–2) 5 (0–15)
Medium 2 (1–5) 12 (3–26) 2 (1–4) 10 (5–21) 1 (1–4) 8 (0–18)
High 3 (1–5) 20 (8–33) 2 (0–3) 6 (2–20) 2 (0–3) 10 (3–22)
  1. **p < 0.001, (Kruskal-Wallis), ¥Patients Global Impression of Change < 6.