This is an observational, non-interventional, retrospective study to evaluate the participants characteristics, current treatment patterns and resource usage in Chinese pediatric participants diagnosed with CPP.~This study will enroll approximately 400 participants.~The data available in an existing data source the Chinese CPP Big Data Platform database will be analyzed. All the participants will be assigned to a single observational cohort:~• Pediatric Participants With CPP~This multi-center trial will be conducted in China. The overall duration of the study will be approximately 18 months.
The main purpose is to describe how many children were treated during 24 months or less because of CPP and how treatment worked for them.~There are no participants in this trial, the study only involves reviewing participants medical past and current records and collecting information.