Skip to main content

Table 3 Demographic and observational predictors of healing based on 581 burn areas, where se* is the bootstrapped standard error of the estimated parameter.

From: Using ordinal logistic regression to evaluate the performance of laser-Doppler predictions of burn-healing time

Parameter β ˆ MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacPC6xNi=xH8viVGI8Gi=hEeeu0xXdbba9frFj0xb9qqpG0dXdb9aspeI8k8fiI+fsY=rqGqVepae9pg0db9vqaiVgFr0xfr=xfr=xc9adbaqaaeGaciGaaiaabeqaaeqabiWaaaGcbaGafqOSdiMbaKaaaaa@2D86@ se se* p-value 1 p-value 2
α 1 1.209 0.267 0.532 .041 0.023
α 2 - α 1 1.008 0.095 0.122 < .001 < .001
Burn site 2 (extremity) 0.912 0.225 0.361 .018 0.012
Burn site 3 (torso) 0.370 0.250 0.300 .21 0.217
Burn site 4 (face) 1.732 0.469 1.18 .023 0.141
Gender (female) -0.696 0.197 0.389 .084 0.073
Race (black) 0.168 0.587 2.34 .888 0.943
Age (yrs) -0.0084 0.0041 0.0072 .236 0.239
(Age - 35)2 -0.0006 0.0002 0.00034 .106 0.103
%TBSA -0.0104 0.0088 0.043 .736 0.762
Burn cause: flame -0.589 0.219 0.370 .098 0.111
Burn cause: chemical -0.847 0.503 1.97 .351 0.668
Burn cause: flash -0.385 0.436 0.772 .617 0.618
Burn cause: electrical -2.175 0.964 8.49 .687 0.798
Burn cause: contact -1.507 0.511 1.36 .143 0.266
  1. The two bootstrap p-values from the two-sided bootstrap hypothesis test are from the bootstrap percentile and bootstrap parametric tests described in the text. The more reliable p-values derived from permutation tests are given in the text.