Table 2 Conversion table for BASMI₁₀; the BASMI₁₀ is the mean of the five scores

If:	Then score =
If:	0	1	2	3	4	5	6	7	8	9	10
Lateral lumbar flexion (cm)	⩾20	18–20	15.9–17.9	13.8–15.8	11.7–13.7	9.6–11.6	7.5–9.5	5.4–7.4	3.3–5.3	1.2–3.2	⩽1.2
Tragus-to-wall distance (cm)	⩽10	10–12.9	13–15.9	16–18.9	19–21.9	22–24.9	25–27.9	28–30.9	31–33.9	34–36.9	⩾37
Lumbar flexion (modified Schober) (cm)	⩾7	6.4–7.0	5.7–6.3	5.0–5.6	4.3–4.9	3.6–4.2	2.9–3.5	2.2–2.8	1.5–2.1	0.8–1.4	⩽0.7
Intermalleolar distance (cm)	⩾120	110–119.9	100–109.9	90–99.9	80–89.9	70–79.9	60–69.9	50–59.9	40–49.9	30–39.9	⩽30
Cervical rotation angle (°)	⩾85	76.6–85	68.1–76.5	59.6–68	51.1–59.5	42.6–51	34.1–42.5	25.6–34	17.1–25.5	8.6–17	⩽8.5

*For lateral lumbar flexion, tragus-to-wall distance, and cervical rotation the average of right and left should be taken.
BASMI, Bath Ankylosing Spondylitis Metrology Index.