Nurse-initiated Conversations for Early Integration of Palliative Care in Pediatric Oncology

Scores of children's quality of life will be measured by Peds Quality of Life TM4.0 scale. It encompasses four subscales: physical, emotional, social and school functioning. It asks how much of a problem each item has been during the past month. It comprised of parallel child self-report and parent proxy-report formats. Child self-report includes ages 5-7 years (young child), ages 8-12 years (child), and ages 13-18 years (adolescent). All items use a five-point Likert response set range from 'never' to 'almost always'. Items are reverse-scored and linear-early transformed to a scale of 0 to 100 (0 = 100, 1= 75, 2= 50, 3= 25, 4=0), so that higher scores indicate a better quality of life. It is a repeated measurement, will be measured at baseline, three months and six months, for three times.

Incidence of adverse events (AEs) will be measured by the Pediatric Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events (PED-PRO-CTCAE). This study will measure the incidence of 15 core AEs (abdominal pain, anorexia, nausea, vomiting, constipation, diarrhea, cough, pain, headache, neuropathy, mucositis, anxiety, depression, fatigue, insomnia), as perceived and reported by children 7 to 18 years of age or parent proxy (0-18 years), using a 7-day reference period with 4 response options per item. Presence of each of the 15 AEs will be measured as a dichotomous variable of the AE symptom (1-if any of the AEs happens; 0-none AEs). It is a repeated measurement, will be measured at baseline and every four weeks, for seven times.

Scores of children's mobility will be measured by Pediatric patient-reported outcomes measurement information system (Pediatric PROMIS) Short Form v2.0 - Mobility 8a. It can be reported by children 7 to 18 years of age or parent proxy (0-18 years) in relation to the past 7 days and in terms of a five-point response option range from 'never' to 'almost always' in most measures. Higher scores mean more of the measured symptom being experienced. The short form measure has 8 items and receives a T-score with a mean of 50 and a standard deviation of 10 based on the original reference sample. It is a repeated measurement, will be measured at baseline and every four weeks, for seven times.

Scores of children's family caregivers' care burden will be measured by Zarit Burden Inventory, by the family caregivers' self-reports. It is a 22-item, 5-point scale ranging from never (0) to always (4). A higher score indicates higher care burden. It is a repeated measurement, will be measured at baseline, three months and six months, for three times.

Scores of children's family caregivers' anxiety will be measured by Zung's Self-Rating Anxiety Scale (SAS), by the family caregivers' self-reports. It is a 20-item, 4-point scale ranging from never (1) to often (4). The total score of 1.25 is the final standard score. A higher score indicates a severer anxiety symptom. It is a repeated measurement, will be measured at baseline, three months and six months, for three times.

Scores of children's family caregivers' depression will be measured by Zung's Self-Rating Depression Scale (SDS) , by the family caregivers' self-reports. It is a 20-item, 4-point scale ranging from never (1) to often (4). The total score of 1.25 is the final standard score. A higher score indicates severer depressive symptoms. It is a repeated measurement, will be measured at baseline, three months and six months, for three times.

Acceptability will be captured by interviews of family caregivers and healthcare workers about whether the content of this intervention is acceptable. Each participant will be asked about the same question: "Please tell me whether you think this intervention is acceptable? Please tell me more about your answer to this question". Acceptability will be defined when the participant clearly answered "yes".

Appropriateness will be assessed by interviews of family caregivers and healthcare workers of the intervention arm whether the content of this intervention is appropriate. Each participant will be asked about the same question: "Please tell me whether you think this intervention is appropriate? Please tell me more about your answer to this question". Appropriateness will be defined when the participant clearly answered "yes".

Feasibility will be assessed by the number of nurses led conversations that actually occurred during the 6-month period.

Barriers and facilitators will be assessed by interviews of family caregivers and healthcare workers of the intervention arm. Each participant will be asked about the same two questions: (1) "Please tell me whether you think there is any barrier during the intervention? Please tell me more about your answer to this question". (2) "Please tell me whether you think there is any facilitators during the intervention? Please tell me more about your answer to this question".