1. Probability of death as a function of the number of months after randomisation in the National Emphysema Treatment Trial comparing medical therapy (––––) versus surgery ( ) for patients with severe emphysema.
Probability of death as a function of the number of months after randomisation in the National Emphysema Treatment Trial comparing medical therapy (––––) versus surgery ( ) for patients with severe emphysema. Reproduced from [22], with permission from the publisher. a) All patients (n = 1,218); b) high-risk patients (n = 140); c) non high-risk patients (n = 1,078); d) upper lobe predominance, low baseline exercise capacity (n = 290); e) upper lobe predominance, high baseline exercise capacity (n = 419); f) non upper lobe predominance, low baseline exercise capacity (n = 149); and g) non upper lobe predominance, high baseline exercise capacity (n = 220).
D. Van Raemdonck, and V. Ninane Eur Respir Rev 2010;19:
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