Psychosocial intervention programs for parents of children with cancer: A systematic review and critical comparison of programs’ models and development
Abstract
Intervention programs have been developed to help parents cope with their child's cancer. Despite some studies reporting a high level of evidence, it is unclear how these programs build on each other. Appraising models of change is critical to advance scientific knowledge and provide evidence-based interventions. This review aims to identify existing programs, explicitly formulate their underlying models, evaluate how they translate into concrete activities, as well as identify and discuss their development process. Eleven programs based on models of change from cognitive-behavioral, systemic and counselling theories were identified. Many models included a sound theoretical framework, targeted outcomes, as well as implementation strategies. In most cases, preliminary development studies were conducted, but details were rarely provided on how development stages informed the redesign of intervention programs. Acceptability and treatment fidelity were not available for one-third of the programs. Future reports should document the development and design redesign stages prior to conducting efficacy trials, as this step would provide crucial details to critically appraise programs.
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Many interventions have not been evaluated with rigorous research designs in pediatric oncology.
“However, few interventions have implemented evidence-based treatments [31,32] and many have not been evaluated with rigorous research designs in pediatric oncology [7,24,25,27].”
From Providing psychological support to parents of childhood cancer survivors: ‘cascade’ intervention trial results and lessons for the future (2021) · cites this paper as [25]
Psychological interventions can be effective for parents of children with cancer and other serious illnesses, yielding small-moderate improvements in QOL, anxiety, and other outcomes.
“Psychological interventions can be effective for parents of children with cancer and other serious illnesses [22,23], yielding small–moderate improvements in QOL, anxiety, and other outcomes [23,24,25,26,27,28,29].”
From Providing psychological support to parents of childhood cancer survivors: ‘cascade’ intervention trial results and lessons for the future (2021) · cites this paper as [25]
With the exception of the eSCCIP, most interventions are implemented face-to-face, limiting benefits to rural-remote families.
“With the exception of the eSCCIP [23], most interventions are also implemented face-to-face, limiting benefits to rural-remote families [7,25,27,33].”
From Providing psychological support to parents of childhood cancer survivors: ‘cascade’ intervention trial results and lessons for the future (2021) · cites this paper as [25]
Cites
Preferred Reporting Items for Systematic Reviews and Meta-Analyses: the PRISMA statement
Moher, D., Liberati, A., Tetzlaff, J., Altman, D. G., & for the PRISMA Group (2009) · BMJ · doi:10.1136/bmj.b2535 · Cited by 83,823 · see citing works
Preferred reporting items for systematic reviews and meta-analyses: the PRISMA Statement.
(2009) · PubMed Central · Cited by 44,859 · see citing works
Preferred reporting items for systematic reviews and meta-analyses: The PRISMA statement
Moher, D., Liberati, A., Tetzlaff, J., Altman, D. G., & the PRISMA Group* (2009) · Annals of Internal Medicine · doi:10.7326/0003-4819-151-4-200908180-00135 · Cited by 37,554 · see citing works
Wang, G., Ma, R., Qiao, G., Wada, K., Aizawa, Y., & Satoh, T. (2015) · Integrative Medicine International · doi:10.1159/000368408 · Cited by 18,759 · see citing works
Developing and evaluating complex interventions: the new Medical Research Council guidance
Craig, P., Dieppe, P., Macintyre, S., Michie, S., Nazareth, I., & Petticrew, M. (2008) · BMJ · doi:10.1136/bmj.a1655 · Cited by 10,995 · see citing works
Bellg, A. J., Treatment Fidelity Workgroup of the NIH Behavior Change Consortium, Borrelli, B., Resnick, B., Hecht, J., Minicucci, D. S., Ory, M., Ogedegbe, G., Orwig, D., Ernst, D., et al. (2004) · Health Psychology · doi:10.1037/0278-6133.23.5.443 · Cited by 2,620 · see citing works
Mediators and Mechanisms of Change in Psychotherapy Research
Kazdin, A. E. (2007) · Annual Review of Clinical Psychology · doi:10.1146/annurev.clinpsy.3.022806.091432 · Cited by 2,504 · cited 1× · see citing works
“This is of paramount importance, as targeting a specific outcome is associated with more consistent underlying theories of the difficulties and more consistent program development (Kazdin, 2007).”
BackgroundEvidence-based practice in psychology.
American Psychological Association (2006) · American Psychologist · doi:10.1037/0003-066x.61.4.271 · Cited by 2,478 · see citing works
Encyclopedia of Statistics in Behavioral Science
(2005) · Wiley eBooks · doi:10.1002/0470013192 · Cited by 1,472 · see citing works
Mishel, M. H. (1988) · Image: the Journal of Nursing Scholarship · doi:10.1111/j.1547-5069.1988.tb00082.x · Cited by 1,456 · cited 4× · see citing works
“HERO+ (Santacroce et al., 2010) is an adaptation of the HEROS program (Mishel, 1988) and consists of health education sessions aimed at reducing anxiety related to uncertainty.”
MethodInfluentialFrom ideas to efficacy: The ORBIT model for developing behavioral treatments for chronic diseases
Czajkowski, S. M., Powell, L. H., Adler, N., Naar-King, S., Reynolds, K. D., Hunter, C. M., Laraia, B., Olster, D. H., Perna, F. M., Peterson, J. C., et al. (2015) · Health Psychology · doi:10.1037/hea0000161 · Cited by 1,161 · see citing works
American Journal of Psychiatry
Ketzenberger, K. E. (2014) · Encyclopedia of Special Education · doi:10.1002/9781118660584.ese0115 · Cited by 1,132 · see citing works
Distributed Disturbances in Brain Structure and Function in Schizophrenia
Lewis, D. A. (2000) · American Journal of Psychiatry · doi:10.1176/ajp.157.1.1 · Cited by 971 · see citing works
Understanding how and why psychotherapy leads to change
Kazdin, A. E. (2009) · Psychotherapy Research · doi:10.1080/10503300802448899 · Cited by 728 · cited 1× · see citing works
“Moreover, this also contrasts with experts’ recommendation to select relevant proximal outcomes for participants in psychological treatments (Kazdin, 2009).”
ResultHerschell, A. D., Kolko, D. J., Baumann, B. L., & Davis, A. C. (2010) · Clinical Psychology Review · doi:10.1016/j.cpr.2010.02.005 · Cited by 713 · see citing works
Stewart, R. E., & Chambless, D. L. (2009) · Journal of Consulting and Clinical Psychology · doi:10.1037/a0016032 · Cited by 483 · see citing works
Wiener, L. S., Kazak, A. E., Noll, R. B., Patenaude, A. F., & Kupst, M. J. (2015) · Pediatric Blood & Cancer · doi:10.1002/pbc.25675 · Cited by 476 · see citing works
Image: Journal of Nursing Scholarship
(2000) · Nursing Older People · doi:10.7748/nop.11.10.26.s13 · Cited by 441 · see citing works
Review and meta-analysis of couple-oriented interventions for chronic illness
Martire, L. M., Schulz, R., Helgeson, V. S., Small, B. J., & Saghafi, E. M. (2010) · Annals of Behavioral Medicine · doi:10.1007/s12160-010-9216-2 · Cited by 419 · see citing works
Assessment of Parental Psychological Stress in Pediatric Cancer: A Review
Jantien Vrijmoet-Wiersma, C. M., van Klink, J. M. M., Kolk, A. M., Koopman, H. M., Ball, L. M., & Maarten Egeler, R. (2008) · Journal of Pediatric Psychology · doi:10.1093/jpepsy/jsn007 · Cited by 389 · see citing works
Reaction to trauma: A cognitive processing model.
Creamer, M. C., Burgess, P., & Pattison, P. (1992) · Journal of Abnormal Psychology · doi:10.1037//0021-843x.101.3.452 · Cited by 371 · see citing works
What works for whom: Tailoring psychotherapy to the person
Norcross, J. C., & Wampold, B. E. (2011) · Journal of Clinical Psychology · doi:10.1002/jclp.20764 · Cited by 338 · see citing works
Reaction to trauma: A cognitive processing model.
Creamer, M. C., Burgess, P., & Pattison, P. E. (1992) · Journal of Abnormal Psychology · doi:10.1037/0021-843x.101.3.452 · Cited by 325 · see citing works
Kazak, A. E., Alderfer, M. A., Streisand, R., Simms, S., Rourke, M. T., Barakat, L. P., Gallagher, P., & Cnaan, A. (2004) · Journal of Family Psychology · doi:10.1037/0893-3200.18.3.493 · Cited by 303 · see citing works
Sahler, O. J. Z., Fairclough, D. L., Phipps, S., Mulhern, R. K., Dolgin, M. J., Noll, R. B., Katz, E. R., Varni, J. W., Copeland, D. R., & Butler, R. W. (2005) · Journal of Consulting and Clinical Psychology · doi:10.1037/0022-006x.73.2.272 · Cited by 282 · see citing works
Pilot and feasibility studies come of age!
Lancaster, G. A. (2015) · Pilot and Feasibility Studies · doi:10.1186/2055-5784-1-1 · Cited by 260 · see citing works
Ljungman, L., Cernvall, M., Grönqvist, H., Ljótsson, B., Ljungman, G., & von Essen, L. (2014) · PLoS ONE · doi:10.1371/journal.pone.0103340 · Cited by 234 · see citing works
Kazak, A. E., Simms, S., Alderfer, M. A., Rourke, M. T., Crump, T., McClure, K. S., Jones, P., Rodriguez, A. M., Boeving, A., Hwang, W., et al. (2005) · Journal of Pediatric Psychology · doi:10.1093/jpepsy/jsi051 · Cited by 229 · see citing works
Problem-Solving Therapy: A Treatment Manual
Nezu, A. M., Nezu, C. M., & D’Zurilla, T. J. (2012) · Cited by 222 · see citing works
DiMatteo, M. R. (2004) · Patient Education and Counseling · doi:10.1016/j.pec.2003.04.003 · Cited by 222 · see citing works
KAZAK, A. E., SIMMS, S., BARAKAT, L., HOBBIE, W., FOLEY, B., GOLOMB, V., & BEST, M. (1999) · Family Process · doi:10.1111/j.1545-5300.1999.00176.x · Cited by 213 · see citing works
Parent and family factors associated with child adjustment to pediatric cancer
Robinson, K. E., Gerhardt, C. A., Vannatta, K., & Noll, R. B. (2006) · Journal of Pediatric Psychology · doi:10.1093/jpepsy/jsl038 · Cited by 207 · see citing works
SAHLER, O. J. Z., VARNI, J. W., FAIRCLOUGH, D. L., BUTLER, R. W., NOLL, R. B., DOLGIN, M. J., PHIPPS, S., COPELAND, D. R., KATZ, E. R., & MULHERN, R. K. (2002) · Journal of Developmental & Behavioral Pediatrics · doi:10.1097/00004703-200204000-00003 · Cited by 205 · see citing works
Sahler, O. J. Z., Dolgin, M. J., Phipps, S., Fairclough, D. L., Askins, M. A., Katz, E. R., Noll, R. B., & Butler, R. W. (2013) · Journal of Clinical Oncology · doi:10.1200/jco.2011.39.1870 · Cited by 195 · see citing works
Hall, J., Kellett, S., Berrios, R., Bains, M. K., & Scott, S. (2016) · The American Journal of Geriatric Psychiatry · doi:10.1016/j.jagp.2016.06.006 · Cited by 157 · see citing works
Acute stress in parents of children newly diagnosed with cancer
Patiño‐Fernández, A. M., Pai, A. L. H., Alderfer, M., Hwang, W., Reilly, A., & Kazak, A. E. (2008) · Pediatric Blood & Cancer · doi:10.1002/pbc.21262 · Cited by 156 · see citing works
Handbook of Pediatric Psychology
Deering, C. G. (1989) · Journal of Psychosocial Nursing and Mental Health Services · doi:10.3928/0279-3695-19890501-20 · Cited by 154 · see citing works
A systematic review on factors and consequences of parental distress as related to childhood cancer
Sultan, S., Leclair, T., Rondeau, É., Burns, W., & Abate, C. (2015) · European Journal of Cancer Care · doi:10.1111/ecc.12361 · Cited by 149 · see citing works
Self-citationStehl, M. L., Kazak, A. E., Alderfer, M. A., Rodriguez, A., Hwang, W.-T., Pai, A. L. H., Boeving, A., & Reilly, A. (2009) · Journal of Pediatric Psychology · doi:10.1093/jpepsy/jsn130 · Cited by 148 · see citing works
Families and Other Systems in Pediatric Psychology.
Kazak, A. E., Rourke, M. T., & Crump, T. (2003) · Cited by 142 · see citing works
Spinetta, J. J., Masera, G., Eden, T. O. B., et al. (2002) · Medical and Pediatric Oncology · doi:10.1002/mpo.1283 · Cited by 127 · see citing works
Evidence-Based Psychological Treatments: An Update and a Way Forward
Barlow, D. H., Bullis, J. R., Comer, J. S., & Ametaj, A. A. (2013) · Annual Review of Clinical Psychology · doi:10.1146/annurev-clinpsy-050212-185629 · Cited by 120 · see citing works
Quality of life: a new perspective for cancer patients
Fallowfield, L. J. (2002) · Nature reviews. Cancer · doi:10.1038/nrc930 · Cited by 116 · see citing works
Posttraumatic Growth in Parents and Pediatric Patients
Picoraro, J. A., Womer, J. W., Kazak, A. E., & Feudtner, C. (2014) · Journal of Palliative Medicine · doi:10.1089/jpm.2013.0280 · Cited by 107 · see citing works
Maurice‐Stam, H., Oort, F. J., Last, B. F., & Grootenhuis, M. A. (2008) · Psycho-Oncology · doi:10.1002/pon.1260 · Cited by 97 · see citing works
Intensified chemotherapy without SCT in infant ALL: Results from COG P9407 (Cohort 3)
Dreyer, Z. E., Hilden, J. M., Jones, T. L., Devidas, M., Winick, N. J., Willman, C. L., Harvey, R. C., Chen, I., Behm, F. G., Pullen, J., et al. (2014) · Pediatric Blood & Cancer · doi:10.1002/pbc.25322 · Cited by 96 · see citing works
Fedele, D. A., Hullmann, S. E., Chaffin, M. J., Kenner, C. A., Fisher, M. J., Kirk, K., Eddington, A. R., Phipps, S., McNall‐Knapp, R. Y., & Mullins, L. L. (2013) · Journal of Pediatric Psychology · doi:10.1093/jpepsy/jst010 · Cited by 81 · see citing works
Mullins, L. L., Fedele, D. A., Chaffin, M. J., Hullmann, S. E., Kenner, C. A., Eddington, A. R., Phipps, S., & McNall‐Knapp, R. Y. (2012) · Journal of Pediatric Psychology · doi:10.1093/jpepsy/jss093 · Cited by 78 · see citing works
Askins, M. A., Sahler, O. J. Z., Sherman, S. A., Fairclough, D. L., Butler, R. W., Katz, E. R., Dolgin, M. J., Varni, J. W., Noll, R. B., & Phipps, S. (2008) · Journal of Pediatric Psychology · doi:10.1093/jpepsy/jsn124 · Cited by 74 · see citing works
Hoff, A. L., Mullins, L. L., Gillaspy, S. R., Page, M. C., Pelt, J. C. V., & Chaney, J. M. (2005) · Families Systems & Health · doi:10.1037/1091-7527.23.3.329 · Cited by 69 · see citing works
Patient and Researcher Engagement in Health Research: A Parent’s Perspective
Amirav, I., Vandall‐Walker, V., Rasiah, J., & Saunders, L. (2017) · PEDIATRICS · doi:10.1542/peds.2016-4127 · Cited by 69 · see citing works
Hoekstra‐Weebers, J. E. H. M., Heuvel, F., Jaspers, J., Kamps, W. A., & Klip, E. C. (1998) · Journal of Pediatric Psychology · doi:10.1093/jpepsy/23.3.207 · Cited by 66 · see citing works
Cultural Influences in Pediatric Cancer
Gray, W. N., Szulczewski, L., Regan, S. M. P., Williams, J. A., & Pai, A. L. H. (2014) · Journal of Pediatric Oncology Nursing · doi:10.1177/1043454214529022 · Cited by 65 · see citing works
Cernvall, M., Carlbring, P., Ljungman, L., Ljungman, G., & Essen, L. (2015) · Psycho-Oncology · doi:10.1002/pon.3788 · Cited by 61 · see citing works
Wakefield, C. E., Sansom-Daly, U. M., McGill, B. C., Ellis, S. J., Doolan, E. L., Robertson, E. G., Mathur, S., & Cohn, R. J. (2016) · Supportive Care in Cancer · doi:10.1007/s00520-016-3077-6 · Cited by 61 · see citing works
Santacroce, S. J., Asmus, K., Kadan‐Lottick, N. S., & Grey, M. J. (2009) · Journal of Pediatric Oncology Nursing · doi:10.1177/1043454209340325 · Cited by 57 · see citing works
Health-related Quality of Life in Pediatric Cancer Survivors
Yağcı‐Küpeli, B., Akyüz, C., Küpeli, S., & Büyükpamukçu, M. (2012) · Journal of Pediatric Hematology/Oncology · doi:10.1097/mph.0b013e3182467f5f · Cited by 54 · see citing works
Manne, S. L., Mee, L. L., Bartell, A. S., Sands, S. A., & Kashy, D. A. (2016) · Journal of Consulting and Clinical Psychology · doi:10.1037/ccp0000087 · Cited by 51 · see citing works
Ussher, J. M., Perz, J., Hawkins, Y., & Brack, M. (2009) · Health Psychology Review · doi:10.1080/17437190903033401 · Cited by 50 · see citing works
Brady, P., Kangas, M., & McGill, K. M. (2017) · Journal of Marital & Family Therapy · doi:10.1111/jmft.12204 · Cited by 46 · see citing works
Maternal Problem-Solving Therapy in Pediatric Cancer
Varni, J. W., Sahler, O. J. Z., Katz, E. R., Mulhern, R. K., Copeland, D. R., Noll, R. B., Phipps, S., Dolgin, M. J., & Roghmann, K. J. (1999) · Journal of Psychosocial Oncology · doi:10.1300/j077v16n03_04 · Cited by 45 · see citing works
Klassen, A. F., Gulati, S., Watt, L., et al. (2011) · Psycho-Oncology · doi:10.1002/pon.1963 · Cited by 45 · see citing works
Cernvall, M., Carlbring, P., Wikman, A., Ljungman, L., Ljungman, G., & von Essen, L. (2017) · Journal of Medical Internet Research · doi:10.2196/jmir.6852 · Cited by 45 · see citing works
Warner, C. M., Ludwig, K., Sweeney, C., Spillane, C., Hogan, L., Ryan, J., & Carroll, W. (2011) · Journal of Pediatric Oncology Nursing · doi:10.1177/1043454211408105 · Cited by 40 · see citing works
Future Directions in Research on Psychotherapy for Adolescent Depression
Curry, J. F. (2014) · Journal of Clinical Child & Adolescent Psychology · doi:10.1080/15374416.2014.904233 · Cited by 38 · see citing works
Barrera, M. E., Atenafu, E. G., Andrews, G., & Saunders, F. (2007) · Journal of Pediatric Psychology · doi:10.1093/jpepsy/jsm080 · Cited by 36 · see citing works
Wakefield, C. E., Sansom-Daly, U. M., McGill, B. C., McCarthy, M., Girgis, A., Grootenhuis, M., Barton, B., Patterson, P., Osborn, M., Lowe, C., et al. (2015) · Trials · doi:10.1186/s13063-015-0681-6 · Cited by 35 · see citing works
Safarabadi-Farahani, A., Maarefvand, M., Biglarian, A., & Khubchandani, J. (2016) · Journal of Pediatric Nursing · doi:10.1016/j.pedn.2016.01.002 · Cited by 33 · see citing works
What makes a ‘good’ review article? Some reflections and recommendations
Hagger, M. S. (2012) · Health Psychology Review · doi:10.1080/17437199.2012.705556 · Cited by 29 · see citing works
Cernvall, M., Carlbring, P., Ljungman, G., & von Essén, L. (2012) · Journal of Psychosocial Oncology · doi:10.1080/07347332.2012.741095 · Cited by 28 · see citing works
Tremolada, M., Bonichini, S., Schiavo, S., & Pillon, M. (2012) · Psychology and Health · doi:10.1080/08870446.2012.690414 · Cited by 25 · see citing works
Effects of a brief problem-solving intervention for parents of children with cancer
Lamanna, J. D., Bitsko, M. J., & Stern, M. (2017) · Children s Health Care · doi:10.1080/02739615.2016.1275638 · Cited by 6 · see citing works
Byrne, M., McSharry, J., Meade, O., Lavoie, K., & Bacon, S. (2018) · HRB Open Research · doi:10.12688/hrbopenres.12795.1 · Cited by 5 · see citing works
Textbook of Pediatric Neuropsychiatry
Wang, P. P. (2000) · Journal of Developmental & Behavioral Pediatrics · doi:10.1097/00004703-200010000-00008 · Cited by 3 · see citing works
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“With the exception of the eSCCIP [23], most interventions are also implemented face-to-face, limiting benefits to rural-remote families [7,25,27,33].”
BackgroundOgez, D., Péloquin, K., Bertout, L., Bourque, C.-J., Curnier, D., Drouin, S., Laverdière, C., Marcil, V., Aramideh, J., Ribeiro, R., et al. (2021) · Cogent Medicine · doi:10.1080/2331205x.2021.1944476 · Cited by 8 · see citing works
Self-citation¿Cuál es la evidencia actual sobre cuidadores familiares de niños con cáncer?: Una revisión umbrella
Lopez-Leon, A., Carreño-Moreno, S., & Arias-Rojas, M. (2023) · Universidad y Salud · doi:10.22267/rus.242601.312 · Cited by 1 · see citing works
- Authors
- Ogez, D., Péloquin, K., Bertout, L., Bourque, C.-J., Curnier, D., Drouin, S., Laverdière, C., Marcil, V., Ribeiro, R., Callaci, M., Rondeau, E., Sinnett, D., & Sultan, S.
- Affiliations
- Centre Hospitalier Universitaire Sainte-Justine (CA)
- Université de Montréal (CA)
- Corresponding author
- Ogez, David
- ORCID
- Venue
- Journal of Clinical Psychology in Medical Settings
- Published
- 2019-02-26
- Volume
- 26
- Issue
- 4
- Pages
- 550-574
- ISSN
- 1068-9583 (ISSN-L)
- 1573-3572
- OpenAlex
- W2917193374
- Cited by
- 35
- References
- 76
- Citations by year
- 2026: 4 · 2025: 5 · 2024: 4 · 2023: 7 · 2022: 5 · 2021: 6 · 2020: 1 · 2019: 3
- FWCI
- 0.80
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Journal of Clinical Psychology in Medical Settings (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Fonds de Recherche du Québec - Santé
- Charles Bruneau Cancer Center Foundation
- CHU Sainte-Justine Foundation
- Topics
- Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Childhood Cancer Survivors' Quality of Life
- Social Sciences › Sociology and Political Science › Family Support in Illness
- Health Sciences › Medicine › Oncology › Cancer survivorship and care
- Keywords
- psychosocial interventions, parents of children with cancer, childhood cancer, change models, intervention development, cognitive behavioral therapy, systemic therapy, counseling, program acceptability, intervention fidelity
- MeSH terms
- Psychological Distress, Adaptation, Psychological, Child, Counseling, Female, Humans, Male, Neoplasms, Parents, Stress, Psychological, Program Evaluation, Cognitive Behavioral Therapy, Program Development
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