291628.fig.003
Figure 3: Mean VC, 95% CI, decrease in percent in relation to self-rated pain when moving from lying to sitting ( , NRS 0–3.0 , NRS 3.1–7.0 , NRS 7.1–10.0 ). NRS: numeric rating scale, 0 = no pain, 10 = the worst imaginable pain, VC: vital capacity,   between all groups.