Cited by 5Cancer survivorship and careFamily Support in IllnessAttachment and Relationship Dynamics

Moderators and mediators of emotion regulation therapy for psychologically distressed caregivers of cancer patients: secondary analyses from a randomized controlled trial.

Open access
O’Toole, Mia S., Mennin, Douglas. S., Applebaum, Allison J., Fresco, David M., Zachariae, Robert·2021·Acta Oncologica

Abstract

Being an informal caregiver (IC) of a cancer patient is often associated with psychological distress. We have recently, in a randomized controlled trial (RCT), demonstrated efficacy of Emotion Regulation Therapy for ICs (ERT-C), evidenced as lower levels of psychological distress. Such efficacy demonstration is important, but a crucial step in improving treatments for the IC population is the identification of moderators (i.e., for whom the treatment works) and mediators (i.e., the drivers of the detected effect). In a sample of 65 psychologically distressed ICs (combining participants who received immediate and delayed treatment in the RCT); we investigated age, gender, and homework completion as moderators of treatment outcome. Proposed mediators were derived from the ERT model and included mindfulness, emotion regulation dysfunction, decentering, and cognitive reappraisal. The strongest moderation effect was found for homework completion, predicting improvements on psychological distress. Correlational mediation analyses generally supported the ERT model. However, temporal precedence was only established for the association between decentering and worry, where a bidirectional relation was revealed. Homework thus emerged as an important aspect of ERT-C and, albeit a bidirectional relationship, changes in decentering may precede changes in worry. Future trials should ensure the robustness of these results, hone the specificity of process measures, and further investigate the causal timeline of change.

Integrity signals

Registry

Crossref · 10.1080/0284186x.2021.1924400

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

16 tests recomputed · 0 with the reported and recomputed p on opposite sides of .05

Claims the paper makes

11 of 18 cited sources checked · 6 supported · 0 flagged · accuracy not yet measured

  • Findingown data

    Female gender was associated with a larger reduction in worry than male gender, with a small effect size.

    “Female gender was associated with a larger reduction in worry, compared to the male gender, of a small magnitude (F=4.4, p=.037, d=.21).”
    Quote in the paperNot a substantial claim
  • Findingown data

    Gender did not significantly moderate treatment effects on psychological distress or perceived burden.

    “This was not the case for psychological distress (F=2.1, p=.146, d=.15) or perceived burden (F=2.0, p=.154, d=.15).”
    Quote in the paperNot a substantial claim
  • Findingown data

    Age did not significantly moderate psychological distress or worry.

    “For psychological distress (F=0.1, p=.801, d=.03) and worry (F=0.1, p=.810, d=.02) the effects were non-significant.”
    Quote in the paperNot a substantial claim
  • Findingown data

    Age significantly moderated perceived burden, with younger participants showing a larger decline in burden, of small magnitude.

    “Concerning age, a significant interaction of a small magnitude was revealed for perceived burden (F=4.6, p=.032, d=.22), such that younger participants experience a larger decline in burden.”
    Quote in the paperNot a substantial claim
  • Findingown data

    Changes in decentering temporally preceded changes in worry.

    “Changes in decentering, temporally preceded changes in worry (Z=−2.77, p=.006, r=.34)”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim. 16
  • May combine two claims. 22
  • The quote only partly states this claim. 1
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    In an RCT of 20-session ERT versus an attention control for generalized anxiety disorder with or without depression, all four proposed mediators showed indirect effects on all primary outcomes.

    “In an RCT investigating the efficacy of 20 sessions of ERT compared with an attention control condition in the treatment of generalized anxiety disorder with and without depression, all four proposed mediators (mindfulness, emotion dysregulation, decentering, and cognitive reappraisal) showed an indirect effect on all primary outcomes [14].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
  • May combine two claims.

    Premisecitation

    In a prior randomized controlled trial, Emotion Regulation Therapy for caregivers reduced psychological distress, worry, and perceived caregiver burden in psychologically distressed informal caregivers of cancer patients.

    “We have recently, in a randomized controlled trial (RCT), demonstrated efficacy of Emotion Regulation Therapy for caregivers (ERT-C), evidenced as lower levels of psychological distress.”
    • Also stated in: § Background · plain
      “In the RCT, we randomized 81 psychologically distressed ICs to ERT-C or a waitlist. ICs in the ERT-C group experienced significant reductions in psychological distress, worry, and perceived caregiver burden (Hedges’ g: 0.53-0.96) following the course of 8 sessions [12].”
    • Also stated in: § Conclusions · plain
      “ERT-C has received empirical support for its efficacy in treating ICs of cancer patients.”
    Quote in the paperSubstantial claim1 of 1 sources checked
  • Classified as probably not a substantial claim.

    Study design and conductcitation

    Participants were randomly allocated to ERT-C or a waitlist condition.

    “Upon having provided written informed consent, ICs were randomly allocated to either the ERT-C or a waitlist condition as described in the previous publication establishing the efficacy of ERT-C (11).”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [11] source

      The Study Population section describes a random sample of Medicare couples, and Statistical analysis describes observational analyses of spousal hospitalization and mortality. Searches for ERT-C, a waitlist, and random allocation found no passage about the claimed intervention assignment. (LLM, conf=0.78)

      Experimental — accuracy not yet measured
  • May combine two claims.

    Premisecitation

    In a meta-analysis of CBT trials, younger samples and samples with a larger proportion of women obtained larger treatment effects, with age and proportion of female participants significantly associated with effect magnitude.

    “In the meta-analysis mentioned above [18], age (B=−0.02, p=0.046) and proportion of female participants (B=0.01, p=0.001) were significantly associated with the magnitude of the treatment effect. Specifically, younger samples and samples with a larger proportion of women obtained larger effects”
    Quote in the paperSubstantial claim1 of 1 sources checked
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Homework is an integral part of most contemporary CBTs, based on the premise that new skills are best acquired and consolidated through everyday practice.

    “homework is an integral part of most contemporary CBTs, rooted in the premise that new skills are best acquired and consolidated through training in everyday life [20]”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [20] source

      The “CBT Principles and Processes That Promote Behavioral Adaptation” and “Context Engagement” sections discuss enacting new experiences and learning adaptive responses, but do not say that homework is integral to most CBTs or that everyday practice is how new skills are best acquired and consolidated. Searches for “homework” and for everyday practice and skill consolidation found no passage addressing that claim. (LLM, conf=0.70)

      Experimental — accuracy not yet measured
  • Classified as probably not a substantial claim.

    Premisecitation

    Greater practice of regulatory skills following mindfulness treatment is associated with increases in decentering.

    “a recent empirical study showing that greater practice of regulatory skills following mindfulness treatment was associated with increases in decentering”
    Quote in the paperSubstantial claim2 of 2 sources checked
    • cites [21] source

      The introduction (p. 2) reports that mindfulness-based cognitive therapy produced larger increases in decentering than treatment as usual. It does not report that greater practice of regulatory skills following treatment was associated with those increases; that practice–decentering association is unsupported. (LLM, conf=0.84)

      Experimental — accuracy not yet measured
    • cites [22] source

      The ‘Decentering and metacognitive awareness’ section (page unavailable) reports that increases in mindfulness during interventions were associated with increases in a decentering-related measure. It does not report that greater practice of regulatory skills following treatment was associated with increased decentering; it reviews other studies rather than presenting the described empirical study. (LLM, conf=0.86)

      Experimental — accuracy not yet measured
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Study design and conductcitation

    Treatment was delivered by twelve master's or doctorate level students with good manual fidelity.

    “Twelve master’s or doctorate level students delivered the treatment and showed good manual fidelity [see 12].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
  • Classified as probably not a substantial claim.

    Premisecitation

    In an open trial of ERT in young adults, changes in decentering and cognitive reappraisal temporally preceded changes in anxiety symptoms.

    “In an open trial of ERT in a sample of young adults, changes in decentering and cognitive reappraisal were found to temporally precede changes in two and three measures of anxiety symptoms, respectively [26].”
    Quote in the paperSubstantial claim1 of 1 sources checked
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    It has been theoretically argued and empirically documented that attention regulation change precedes metacognitive regulation change because decentering relies on attention and mindful awareness.

    “it has been theoretically argued and empirically documented, that attention regulation change precedes metacognitive regulation change because decentering, for instance, inherently relies on the individual paying attention to and being mindfully aware of their experience [22,46].”
    Quote in the paperNot a substantial claim1 of 2 sources checked
    • cites [22] source

      In “Decentering and metacognitive awareness” (page unavailable), the paper says decentering entails observing subjective experience and reports that increases in mindfulness were related to increases in disidentification. It presents the proposed relationship as a hypothesis that the studies begin to test; it does not document that attention-regulation change temporally precedes metacognitive-regulation change. (LLM, conf=0.86)

      Experimental — accuracy not yet measured
    • cites [46]

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Interpretationown data

    There was a bidirectional temporal relation between decentering and worry, partly replicating past ERT trial findings.

    “We further tested the proposed mediators’ temporal relation to the outcomes and found a bidirectional relation between decentering and worry. Changes in decentering preceded changes in worry and vice versa, thus partly replicating past ERT trial findings [26].”
    • Also stated in: § Conclusions · plain
      “In terms of timeline of change, changes in decentering preceded changes in worry and vice versa.”
    Quote in the paperSubstantial claim1 of 1 sources checked
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Findingown data

    In the analyzed sample, the mean age was 47.9 years and most participants were female.

    “The mean age of the IC sample was 47.9 years. Most ICs were female (75%) caring for male patients (73%), primarily with stage IV cancer (58%), diagnosed primarily with colon cancer (25%).”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Findingown data

    Average homework completion during treatment was 3.4 on a 1-to-5 scale.

    “During treatment, the average homework completion was 3.4 (scale from 1 to 5).”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Homework compliance did not significantly moderate worry or perceived burden, although both effects were in the same direction and small.

    “This pattern of results was not the case for worry (F=2.0, p=.164, d=.17) or perceived burden (F=2.7, p=.099, d=.21), although both in the same direction and of a small magnitude.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    In a combined model for worry, only decentering remained significant, not mindfulness or emotion regulation.

    “In a combined model, only decentering remained significant (Z=−2.52, p=.012, r=.31), not mindfulness (Z=−1.27, p=.204, r=.16) or emotion regulation (Z=−0.87, p=.382, r=.11).”
    Quote in the paperSubstantial claim
  • May combine two claims. The quote only partly states this claim.

    Findingown data

    Changes in worry temporally preceded changes in decentering, with a similar magnitude to the reverse direction.

    “however, the reverse direction was also significant (Z=2.17, p=.030, r=.27) and of a similar magnitude.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    In a combined model for perceived burden, only emotion regulation remained significant, not mindfulness or decentering.

    “In a combined model, only emotion regulation remained significant (Z=−2.72, p=.006, r=.34), not mindfulness (Z=−0.29, p=.863, r=.02) or decentering (Z=−0.67, p=.501, r=.08).”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Premisecitation

    Meta-analyses have documented elevated anxiety and depression in informal caregivers of cancer patients.

    “Meta-analyses have documented elevated levels of psychological distress expressed as anxiety and depression in ICs [2,3]”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [2] source
    • cites [3] source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Meta-analytic evidence shows that homework enhances overall treatment outcome in CBTs.

    “meta-analytic evidence showing that homework enhances overall treatment outcome in CBTs [23,24]”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [23] source
    • cites [24] source
  • May combine two claims.

    Study design and conductown data

    Twenty-nine informal caregivers (36%) dropped out, 23 during treatment; dropouts were significantly older and less worried at pretreatment than completers.

    “Twenty-nine ICs (36%) dropped out, 23 during treatment. Treatment dropouts were statistically significantly older (mean age=52.7 years) than completers (mean=45.3years; p=.034) and worried less at pretreatment (p=.026).”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given

    The study was pre-registered at Clinicaltrials.gov under identifier NCT02322905.

    “The study was pre-registered at Clinicaltrials.gov (#NCT02322905).”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductown data

    Missing observations averaged 11.5% across the eight time points.

    “Missing observations for each of the time points averaged to 11.5%: Session 1=0%, session 2=0%, session 3=11%, session 4=15%, session 5=17%, session 6=18%, session 7=20%, session 8=11%.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Study design and conductown data

    A majority of females in the sample and an uneven dropout rate by age limit the moderation analyses concerning gender and age.

    “Finally, a majority of females in the included sample, and an uneven dropout rate in terms of age, limit the moderation analyses concerning gender and age.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Study design and conductown data

    The relatively low number of participants threatens generalizability and statistical power, though the ability to detect small-to-medium effects as statistically significant partly alleviates the power concern.

    “Second, the relatively low number of participants poses a threat both to generalizability and to the statistical power. Our ability to detect effect sizes of small to medium magnitudes as statistically significant partly alleviates the latter concern.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationown data

    The moderation analyses of age and gender revealed negligible to small effects, suggesting that females may experience a larger decrease in worry and younger participants may experience a larger decline in burden.

    “The moderation analyses of age and gender revealed negligible to small effects, suggesting that females may experience a larger decrease in worry, and that younger participants may experience a larger decline in burden.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Study design and conductown data

    The validity of the age and gender moderation analyses may be threatened by the majority of participants being female and by dropouts being older.

    “However, the validity of the moderation analyses concerning age and gender may be threatened by the majority of participants included in the present study being female and by dropouts being of older age.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Interpretationown data

    The high correlations between proposed mediators could point to between-measures overlap.

    “which could point to between-measures overlap.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    The finding of a bidirectional temporal relation between decentering and worry needs replication but is an important step in understanding the causal pathway to lowering worry.

    “This finding needs to be replicated but is an important step in understanding the causal pathway to lowering worry.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    Correlation-based mediation analyses generally supported the ERT model, with all proposed mediators except cognitive reappraisal consistently showing significant indirect effects on outcomes.

    “Correlational mediation analyses generally supported the ERT model.”
    • Also stated in: § Discussion · plain
      “All but cognitive reappraisal consistently showed significant indirect effects on outcomes, thus being in support of the underlying ERT model [16].”
    • Also stated in: § Conclusions · plain
      “Correlation-based mediation analyses provided general support for the ERT model.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [16] Mennin DS, 2015

      Couldn’t be matched to a paper in Crossref, so it can’t be checked.

  • May combine two claims.

    Study design and conductown data

    Most analyses were correlational, preventing causal interpretation, and only one significant finding was detected in analyses taking the timeline of change into account.

    “First, most analyses were based on a correlational approach (i.e., products-of-coefficients) preventing causal interpretation, and only one significant finding was detected in analyses taking the timeline of change into account.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. May combine two claims.

    Interpretationown data

    The results underscore the benefits to cancer patients of addressing informal caregiver distress and the necessity to consider caregivers as key members of treatment teams.

    “Finally, our results underscore the benefits to cancer patients of addressing IC distress, and more broadly the necessity to consider caregivers as key members of treatment teams.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. May combine two claims.

    Study design and conductreasoning

    The number of analyses conducted increased the risk of a type-I error, so the results should be replicated in future trials to ensure robustness.

    “Given the number of analyses conducted, thereby increasing the risk of a type-I error, these results should be replicated in future trials to ensure their robustness.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    In the informal caregiver population, the temporal relation between decentering and worry may or may not be specific to ERT-C, but the results are promising in that they elucidate a potential causal pathway to lowering worry.

    “In the IC population, this temporal relation between decentering and worry may or may not be specific to ERT-C, but the results are promising in that they elucidate a potential causal pathway to lowering worry.”
    Quote in the paperSubstantial claim
32 of 32
  • The paper relies on this without support.

    Therapist ratings of homework compliance accurately reflect caregivers' actual homework completion.

    “Homework compliance was evaluated by the therapist using a Likert scale from 1 (completely non-compliant) to 5 (did more than agreed upon).”
  • The paper relies on this without support.

    Combining immediate and delayed ERT-C participants does not introduce period or cohort effects that bias the moderation or mediation results.

    “Analyses were conducted on the combined sample of ICs for the time period during which they each received ERT-C (i.e., immediate and delayed ERT-C).”
2 of 2

Statistics that don’t add up

Each reported p-value recomputed from its test statistic and degrees of freedom.

  • Inconsistent p-value: (Z=−0.29, p = .863

    Minor

    The paper reports p = .863 here; recomputing from the test statistic and its degrees of freedom gives p = .772 (two-tailed). The check cannot tell whether the statistic or the p-value is the misprint.

    Reported p = .863 · recomputed p = .772

1 of 1

Statistics recomputed

Every reported test result, recomputed from its test statistic and degrees of freedom. A result shows as not adding up only once an independent check has confirmed it.

  • Doesn’t add upz = -0.29reported p = .863 · recomputed p = .772

    “(Z=−0.29, p = .863”

  • Consistentz = -2.12reported p = .034 · recomputed p = .034

    “(Z=−2.12, p = .034”

  • Consistentz = -2.92reported p = .003 · recomputed p = .004

    “(Z=−2.92, p = .003”

  • Consistentz = -2.39reported p = .017 · recomputed p = .017

    “(Z=−2.39, p = .017”

  • Consistentz = -0.04reported p = .969 · recomputed p = .968

    “(Z=−0.04, p = .969”

  • Consistentz = 0.23reported p = .822 · recomputed p = .818

    “Z=0.23, p = .822”

  • Consistentz = -0.81reported p = .419 · recomputed p = .418

    “Z=−0.81, p = .419”

  • Consistentz = 0.35reported p = .728 · recomputed p = .726

    “Z=0.35, p = .728”

  • Consistentz = -2.52reported p = .012 · recomputed p = .012

    “(Z=−2.52, p = .012”

  • Consistentz = -1.27reported p = .204 · recomputed p = .204

    “(Z=−1.27, p = .204”

  • Consistentz = -0.87reported p = .382 · recomputed p = .384

    “(Z=−0.87, p = .382”

  • Consistentz = -2.77reported p = .006 · recomputed p = .006

    “(Z=−2.77, p = .006”

  • Consistentz = 2.17reported p = .03 · recomputed p = .030

    “(Z=2.17, p = .030”

  • Consistentz = -2.72reported p = .006 · recomputed p = .007

    “(Z=−2.72, p = .006”

  • Consistentz = -0.67reported p = .501 · recomputed p = .503

    “(Z=−0.67, p = .501”

  • Consistentz = -1.2reported p = .23 · recomputed p = .230

    “(Z=−1.20, p = .230”

16 of 16

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Self-check results appear here once an independent check has confirmed them.

Cites

Flagged first, then by citations

Research works printed but not linked: 3

  1. Mennin DS, 2015, Handbook of emotion regulation, 469
  2. 10.1016/j.beth.2018.12.005 · DOI · Paper page
  3. Cohen J., 1988, Statistical power for the behavioral sciences

Cited by

Sorted by citations

Authors
O’Toole, M. S., Mennin, D. S., Applebaum, A. J., Fresco, D. M., & Zachariae, R.
Affiliations
  • Aarhus University (DK)
  • Columbia University (US)
  • Memorial Sloan Kettering Cancer Center (US)
  • University of Michigan (US)
Corresponding author
O’Toole, Mia S.
Venue
Acta Oncologica
Published
2021-06-10
Volume
60
Issue
8
Pages
992-999
ISSN
  • 0284-186X (ISSN-L)
  • 1651-226X
OpenAlex
W3169018295
Cited by
5
References
45
Citations by year
2025: 1 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 1
FWCI
0.33
Type
journal article
Language
en
Open access
Locations
  • Acta Oncologica (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (submittedVersion)
Funders
Danish Cancer Society
Topics
  • Health Sciences › Medicine › Oncology › Cancer survivorship and care
  • Social Sciences › Sociology and Political Science › Family Support in Illness
  • Social Sciences › Psychology › Social Psychology › Attachment and Relationship Dynamics
Keywords
emotion regulation therapy, informal caregivers, cancer patients, psychological distress, moderators, mediators, homework completion, mindfulness
MeSH terms
Emotional Regulation, Emotions, Humans, Neoplasms, Randomized Controlled Trials as Topic, Caregivers, Mindfulness

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Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-09-28.

Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-09-28.

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