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Table 8 Results of the linear mixed modelling analysis for the modified behavioural Bernese Pain Scale for Neonates-subscale and heart rate

From: The influence of gestational age in the psychometric testing of the Bernese Pain Scale for Neonates

  Behavioural Subscale
Likelihood Ratio Test χ 2 df p -value
Phases 864.18 10 < 0.001
Fixed effects Estimated coefficients Std. Error t -value
Intercept 0.265 0.458 0.579
Baseline phase −1.041 0.069 −15.008
Recovery phase −1.134 0.069 −16.040
Measurement point 2 − 0.130 0.070 −1.852
Measurement point 3 0.079 0.074 1.077
Measurement point 4 − 0.078 0.076 −1.038
Measurement point 5 0.097 0.079 1.238
GA at time of birth 0.063 0.012 5.488
Gender (female) −0.017 0.101 −0.170
Measurement point 2 * Baseline 0.251 0.099 2.538
Measurement point 2 * Recovery 0.309 0.098 3.140
Measurement point 3 * Baseline 0.147 0.104 1.419
Measurement point 3 * Recovery 0.071 0.103 0.682
Measurement point 4 * Baseline 0.308 0.106 2.919
Measurement point 4 * Recovery 0.354 0.105 3.359
Measurement point 5 * Baseline 0.062 0.109 0.569
Measurement point 5 * Recovery 0.067 0.109 0.614
  Item Heart rate
Likelihood Ratio Test χ 2 df p -value
Phases 172.91 5 < 0.001
Fixed effects Estimated coefficients Std. Error t -values
Intercept −0.563 0.221 −2.547
Recovery phase −0.646 0.088 −7.383
Measurement point 2 0.023 0.089 0.260
Measurement point 3 −0.199 0.093 −2.139
Measurement point 4 −0.141 0.095 −1.477
Measurement point 5 0.117 0.099 1.183
GA at time of birth 0.042 0.007 6.145
Gender (female) 0.003 0.054 0.051
Measurement point 2 * Recovery 0.021 0.126 0.167
Measurement point 3 * Recovery 0.206 0.131 1.578
Measurement point 4 * Recovery 0.155 0.133 1.160
Measurement point 5 * Recovery −0.032 0.138 −0.231
  1. Note. χ2 = Chi-square value; df = degrees of freedom; N = 154. Bonferroni adjusted p-value < 0.025