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Table 3 Linear models

From: The use of Cincinnati prehospital stroke scale during telephone dispatch interview increases the accuracy in identifying stroke and transient ischemic attack symptoms

a. Positive predictive value as function of sensitivity and proportion of cases with CPSS reported
  Coefficient Standard error (*) p 95% CI
Sensitivity -0.36 0.192 0.063 -0.73-0.02
Proportion of cases with CPSS 0.48 0.195 0.014 0.10-0.86
Constant 67.11 23.137 0.004 21.76-112.46
b. Sensitivity as function of positive predictive value and proportion of cases with CPSS reported
  Coefficient Standard error (*) p 95% CI
Positive predictive value -0.21 0.138 0.118 -0.48-0.05
Proportion of cases with CPSS 0.32 0.104 0.002 0.12-0.53
Constant 69.32 12.15 0.000 45.50-93.13
  1. (*) Std. Err. adjusted for 14 clusters in regions.
  2. CPSS - Cincinnati Prehospital Stroke Scale.