Fig. 4

Correlation coefficients between ambient environment features and (a) average pain frequency (number of reported pain events) in 24 hours period, and (b) average pain severity in 24 hours period. *In deployment 3, CG did not report any observed pain event with severity level more than or equal to 5. Note: n = number of pain reports; PT = patient; CG = caregiver; D = deployment; SD = standard deviation; MD = Median Deviation; MCR = Mean-Crossing-Rate