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Table 2 Evolution of ED95 after each cohort

From: Determination of the ED95 of intrathecal hyperbaric prilocaine with sufentanil for scheduled cesarean delivery: a dose-finding study based on the continual reassessment method

    Prilocaine Dose, mg
    30 35 40 45 50 55
    Working model
    0.5 0.75 0.90 0.95 0.98 0.99
Cohort Administered dose, mg Clinical response Updated Estimated Probability of Response
1 45 S,S,S,S 0.66 0.89 0.97 0.99 1.00 1.00
2 40 S,S,S,S 0.73 0.93 0.99 0.99 1.00 1.00
3 40 S,S,S,S 0.76 0.94 0.99 1.00 1.00 1.00
4 35 F,F,S,F 0.48 0.73 0.88 0.93 0.97 0.99
5 50 S,S,S,S 0.49 0.74 0.89 0.95 0.98 0.99
6 45 S,S,S,S 0.51 0.76 0.91 0.95 0.98 0.99
7 45 S,S,S,S 0.53 0.78 0.92 0.96 0.99 1.00
8 45 S,S,S,S 0.54 0.79 0.93 0.97 0.99 0.99
9 40 S,S,S,F 0.50 0.75 0.90 0.95 0.98 0.99
10 45 S,S,S,F 0.46 0.71 0.87 0.9322 0.9702 0.99
  1. In bold is the estimated posterior probability of the dose level considered to be the currently best estimate of the ED95 after the inclusion of the cohort
  2. F = Failure, S = Success