Table 4. Key variables / source data, WS3, Part 1: Children in Cancer PTCs, paediatric /adult ICUs.

NCRAS (Primary dataset):	Treatment Data (SACT/RDTS)	Intensive care data (PICANet data)	Hospital admission data (HES)	Outpatient data (HES)	A & E data (HES)	Death registration data (ONS)
Cancer diagnoses Age Sex Date of Diagnoses	Chemotherapy and dates Radiotherapy and dates	Age Sex Ethnicity Deprivation score Planned or unplanned admission Date & time of admission Source of admission Date of discharge Destination on discharge Date of death (if occurred) Primary reason for admission Comorbidities Paediatric Index of Mortality score and variables used to derive this Daily intervention data (e.g.mechanical ventilation, inotropic support, renal replacement therapy)	Age Sex Ethnicity Deprivation score Diagnoses (ICD10 codes) Procedures (OPCS codes) Date of admission Source of admission Specialty of admission Emergency or planned admission Date of discharge Discharge destination Date of death (if occurred)	Age Sex Ethnicity Deprivation score Date of appointment Specialty of appointment	Age Sex Ethnicity Deprivation score Date and time of attendance Diagnoses/reason for attendance Outcome Treatment	Date of death Cause(s) of death Place of death