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Table 3 Relative age-dependent inspiratory vital capacity (VC IN%) in SMA II and IIIa non-surgery patients

From: Natural course of scoliosis in proximal spinal muscular atrophy type II and IIIa: descriptive clinical study with retrospective data collection of 126 patients

VC IN% SMA II (N = 40) SMA IIIa (N = 15)
Patient’s age (years) n Ø, ±, min – max, median n Ø, ±, min – max, median
4 - 6 5 Ø 54, ± 13, 41 - 70, 58 - -
7 - 10 19 Ø 44, ± 21, 14 - 91, 43 4 Ø 80, ± 23, 56 - 108, 78
11 - 13 9 Ø 37, ± 22, 10 - 86, 32 5 Ø 56, ± 24, 17 - 73, 70
14 - 15 3 Ø 37, ± 11, 25 - 47, 39 6 Ø 43, ± 11, 31 - 63, 40
16 - 20 4 Ø 42, ± 18, 25 - 63, 43 - -