Osteogenesis imperfecta (OI) patients' pulmonary function test.

Data are expressed as mean±standard deviation. FVC: forced vital capacity;

1

Reference values from Quanjer et al, 1993;

2

Reference values from Kuster et al, 2008; FEV₁: forced expiratory volume in 1 s; TLC: total lung capacity; RV: residual volume; FRC N₂: functional residual capacity measured by N₂ washout; SpO₂: arterial oxygen saturation measured by pulse oxymetry; %pred: percentage of predicted value.

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p<0.05, p<0.01 vs Quanjer et al.