Hypoxic ventilatory responses expressed in terms of the VE slope (change in VE/change in SaO2) and P0.1 slope (change in P0.1/change in SaO2) in 16 normal subjects, 11 patients with asthma but no near fatal attacks, and 11 patients with near fatal asthma. The horizontal bars indicate mean values, and the vertical lines ±1 SD.
Redrawn from: Kikuchi Y, Okabe S, Tamura G, et al, N Engl J Med 1994; 330:1329.
