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Table 1 Probabilities, utilities, and costs for base case and sensitivity analysis

From: The cost-effectiveness of early noninvasive ventilation for ALS patients

Variables Reference case Lower value tested Upper value tested
Probabilities:    
   NIPPV tolerance 0.49[3] 0.40 0.80
   Staying mild 0.66[14] 0.60 0.70
   Staying moderate 0.77[14] 0.70 0.80
   Staying severe 0.76[14] 0.70 0.80
   Staying terminal 0.78[14] 0.70 0.80
Utilities:    
   Mild 0.8[15] 0.7 0.9
   Moderate 0.6[15] 0.5 0.7
   Severe 0.5[15] 0.4 0.6
   Terminal 0.4[15] 0.3 0.5
Costs:    
   NIPPV and accessories for 1 year $3,132[17] $2,810 $3,306
   A trial of NIPPV in those who prove intolerant $467[17] $411 $483