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Figure 1 | Orphanet Journal of Rare Diseases

Figure 1

From: Early treatment with noninvasive positive pressure ventilation prolongs survival in Amyotrophic Lateral Sclerosis patients with nocturnal respiratory insufficiency

Figure 1

Kaplan-Meier plots of survival in 72 patients affected by amyotrophic lateral sclerosis (ALS) from the initiation of NPPV. (Black circle) = 44 patients with ALS with FVC > 75%, (Black triangle) = 16 patients with ALS with FVC < 75% treated with NPPV, (Black square) = 12 patients with ALS with FVC < 75% not treated with NPPV. ALS patients with FVC < 75% treated with NPPV vs. patients with ALS with FVC < 75% intolerant to NPPV: χ2 5.32; *p = 0.02. Patients with ALS with FVC > 75% vs. patients with ALS with FVC < 75% treated with NPPV: χ2 = 0.408 p = 0.5. Patients with ALS with FVC > 75% vs. patients with ALS with FVC < 75% not treated with NPPV: χ2 = 15.4; p < 0.0001.

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