Proportion of subjects with technology dependency or special health care needs. The span of each bar represents the proportion of the sample that exhibited the specified characteristic. The overlapping position of the bars vis-à-vis each other represents the proportion of subjects who exhibited several of these characterizes. Medications, Devices, and Both (medications and devices) indicate sub-types of technology-dependence.
Feudtner et al. BMC Pediatrics 2005 5:8 doi:10.1186/1471-2431-5-8