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Table 1 Patient demographics for the 52 female idiopathic scoliosis patients, divided into nominal age groups

From: Supine to standing Cobb angle change in idiopathic scoliosis: the effect of endplate pre-selection

Nominal age at CT scan (yrs) Mean age (yrs) Number of patients Mean mass (kg) Risser sign (0–5) Ligament laxity (0–5) Mean supine Cobb angle (°) (range) Mean standing Cobb angle (°) (range) Mean change in Cobb (°) Lenke type 1
A B C
All 14.6 52 52 0-5 0-5 42 (28–57) 52 (40–68) 11 30 13 9
11 11.5 2 44 0 0-2 42 (39–45) 50 (48–52) 8 0 2 0
12 12.4 6 44 0-3 0-3 44 (39–48) 56 (47–64) 12 6 0 0
13 13.5 15 50 0-4 0-4 46 (35–57) 54 (40–63) 8 9 2 4
14 14.5 11 60 0-5 0-4 42 (31–55) 51(42–62) 9 4 6 1
15 15.3 7 53 0-5 0-5 40 (34–51) 51(44–68) 11 3 1 3
16 16.5 3 54 3-5 0-2 36 (30–40) 47 (42–50) 11 2 0 1
17 17.5 5 53 4-5 0-3 36 (28–43) 48 (38–58) 12 4 1 0
18 18.1 3 52 5 0-2 40 (32–49) 52 (42–58) 12 2 1 0