Cited by 526Cystic Fibrosis Research AdvancesChild and Adolescent Psychosocial and Emotional DevelopmentMental Health Treatment and Access

Prevalence of depression and anxiety in patients with cystic fibrosis and parent caregivers: results of The International Depression Epidemiological Study across nine countries

Open access
Quittner, Alexandra L, Goldbeck, Lutz, Abbott, Janice, Duff, Alistair, Lambrecht, Patrick, Solé, Amparo, Tibosch, Marijke M, Bergsten Brucefors, Agneta +4 more·2014·Thorax

Abstract

BACKGROUND: Individuals with chronic diseases and parent caregivers are at increased risk for symptoms of depression and anxiety. Prevalence of psychological symptoms was evaluated in adolescents and adults with cystic fibrosis (CF) and parent caregivers across nine countries. METHODS: Patients with CF, ages 12 years and older, and caregivers of children with CF, birth to18 years of age, completed measures of depression and anxiety across 154 CF centres in Europe and the USA. Psychological symptoms were compared across countries using χ(2). Logistic regression examined extent of comorbid symptoms, predictors of depression and anxiety, and concordance between parent and adolescent symptomatology. RESULTS: Psychological symptoms were reported by 6088 patients with CF and 4102 parents. Elevated symptoms of depression were found in 10% of adolescents, 19% of adults, 37% of mothers and 31% of fathers. Elevations in anxiety were found in 22% of adolescents, 32% of adults, 48% of mothers and 36% of fathers. Overall, elevations were 2-3 times those of community samples. Participants reporting elevated anxiety were more likely to report depression (ORs: adolescents=14.97, adults=13.64, mothers=15.52, fathers=9.20). Significant differences in reports of depression and anxiety were found by patient age and parent respondent. Concordance between 1122 parent-teen dyads indicated that adolescents whose parents reported depression were more likely to be elevated on depression (OR=2.32). Similarly, adolescents whose parents reported anxiety were more likely to score in the elevated range on the anxiety measure (OR=2.22). CONCLUSIONS: Symptoms of depression and anxiety were elevated in both patients with CF and parents across several European countries and the USA. Annual screening of psychological symptoms is recommended for both patients and parents.

Integrity signals

Registry

Crossref · 10.1136/thoraxjnl-2014-205983

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

7 of 31 cited sources checked · 3 supported · 0 flagged · accuracy not yet measured

  • Premisecitation

    For adults with cystic fibrosis, rates of anxiety have ranged from 30% to 33%.

    “rates of anxiety from 30% to 33%.”
    Quote in the paperNot a substantial claim2 of 2 sources checked
    • cites [8] Havermans, 2008, Quality of life in patients with Cystic Fibrosis: association with anxiety and depression, J Cyst Fibros source

      Section 3.2 (HADS) reports that 18 of 57 adult patients with cystic fibrosis (30%) scored in the borderline/clinical anxiety category. Our copy does not report a 33% rate, so it supports the lower end of the stated range but not the upper end. (LLM, conf=0.88)

      Experimental — accuracy not yet measured
    • cites [10] Yohannes, 2012, Relationship between anxiety, depression, and quality of life in adult patients with cystic fibrosis, Respir Care source
  • Findingcitation

    The vast majority of items on the Hospital Anxiety and Depression Scale depression subscale measured anhedonia (72%).

    “Instead, the vast majority of items on the HADS-D measured anhedonia (72%), which represents lack of enjoyment and pleasure in activities.36”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [36] American Psychiatric Association, 2013 source

      The Symptoms and patterns passage (section dated 11 September 2026; no page given) describes loss of pleasure or interest in activities, supporting the sentence’s explanation of anhedonia. It does not discuss HADS-D items or report that 72% measure anhedonia; searches for those terms found no such passage. (LLM, conf=0.82)

      Experimental — accuracy not yet measured
  • Findingown data

    In fathers of children with cystic fibrosis, elevations in anxiety were found in 36%.

    “Elevations in anxiety were found in 22% of adolescents, 32% of adults, 48% of mothers and 36% of fathers.”
    • Also stated in: § Prevalence of symptoms of anxiety · plain
      “Symptoms of anxiety were prevalent in patients and parents: adolescents 22%, adults 32%, mothers 48% and fathers 36% (see table 1 and figure 1).”
    Quote in the paperNot a substantial claim
  • Findingown data

    In adolescents with cystic fibrosis, elevations in anxiety were found in 22%.

    “Elevations in anxiety were found in 22% of adolescents, 32% of adults, 48% of mothers and 36% of fathers.”
    • Also stated in: § Prevalence of symptoms of anxiety · plain
      “Symptoms of anxiety were prevalent in patients and parents: adolescents 22%, adults 32%, mothers 48% and fathers 36% (see table 1 and figure 1).”
    Quote in the paperNot a substantial claim
  • Findingown data

    In adults with cystic fibrosis, elevated symptoms of depression were found in 19%.

    “Elevated symptoms of depression were found in 10% of adolescents, 19% of adults, 37% of mothers and 31% of fathers.”
    Quote in the paperSubstantial claim
  • May combine two claims. 12
  • Classified as probably not a substantial claim. 13
  • The quote only partly states this claim. 2
  • May combine two claims.

    Premisecitation

    Psychological distress in patients with cystic fibrosis has been associated with negative consequences including worse adherence, worse pulmonary function, increased hospitalisations and healthcare costs, and decreased health-related quality of life.

    “Psychological distress in patients with CF has been associated with a number of negative consequences and health outcomes, including worse adherence, 7 14 worse pulmonary function, 10 15 increased hospitalisations and healthcare costs, 16 and decreased health-related quality of life.8 9”
    Quote in the paperSubstantial claim2 of 3 sources checked
    • cites [7] Smith, 2010, Depressive symptoms in children with cystic fibrosis and parents and its effects on adherence to airway clearance, Pediatr Pulmonol source
    • cites [14] Grenard, 2011, Depression and medication adherence in the treatment of chronic diseases in the United States: a meta-analysis, J Gen Intern Med source

      The Results report a significant association between depression and worse medication adherence across chronic diseases. The citation to this paper is attached to “worse adherence,” not the sentence’s other outcomes. Our copy does not establish that association specifically in patients with cystic fibrosis. (LLM, conf=0.84)

      Experimental — accuracy not yet measured
    • cites [10] Yohannes, 2012, Relationship between anxiety, depression, and quality of life in adult patients with cystic fibrosis, Respir Care source
  • May combine two claims.

    Premisecitation

    Among parent caregivers, elevations in psychological distress have been found, with depression ranging from 20% to 35%.

    “Among parent caregivers, elevations in psychological distress have also been found, with depression ranging from 20% to 35%.”
    Quote in the paperNot a substantial claim1 of 3 sources checked
    • cites [7] Smith, 2010, Depressive symptoms in children with cystic fibrosis and parents and its effects on adherence to airway clearance, Pediatr Pulmonol source
    • cites [11] Latchford, 2013, Screening for depression in a single CF centre, J Cyst Fibros source
    • cites [12] Besier, 2011, Anxiety, depression, and life satisfaction in parents caring for children with cystic fibrosis, Pediatr Pulmonol source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    For adults with cystic fibrosis, rates of depression have ranged from 13% to 30%.

    “For adults with CF, rates of depression have ranged from 13% to 30%”
    Quote in the paperNot a substantial claim1 of 2 sources checked
    • cites [8] Havermans, 2008, Quality of life in patients with Cystic Fibrosis: association with anxiety and depression, J Cyst Fibros source

      Section 3.2 (HADS; page not provided) reports that 13% of the adult CF patients scored in the borderline/clinical category for depression. Its 30% figure refers to anxiety, not depression, so the claimed upper end of the depression range is unsupported. (LLM, conf=0.91)

      Experimental — accuracy not yet measured
    • cites [9] Riekert, 2007, The association between depression, lung function, and health-related quality of life among adults with cystic fibrosis, Chest source
  • The quote only partly states this claim.

    Findingown data

    In Turkey, depression on the Center for Epidemiologic Studies-Depression scale was 52%.

    “CES-D=52%”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Statistically significant differences were found by age, with 22% of adolescents vs 32% of adults (p<0.001) reporting elevations in anxiety above the cut-off score.

    “Statistically significant differences were found by age, with 22% of adolescents vs. 32% of adults (p<0.001)reporting elevations in anxiety above the cut-off score”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Rates of depression varied depending on age and screening tool: adolescents 5%-19%, adults 13%-29%, mothers 20%-34%, and fathers 18%-25%.

    “Rates of depression varied depending on age and screening tool: adolescents 5%-19%, adults 13%-29%, mothers 20%-34% and fathers 18%-25% (table 1 and figure 1).”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    Analyses by country indicated high rates of anxiety among patients (mean 30%), with moderate variability across countries (14%-35%; Turkey falls within this range).

    “Analyses by country indicated high rates of anxiety among patients (mean 30%), with moderate variability across countries (14%-35%; Turkey falls within this range).”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Rates of anxiety were elevated in patients and caregivers, with 30% of patients and 36%-48% of parents above the clinical cut-off.

    “Rates of anxiety were also elevated in patients and caregivers, with 30% of patients and 36%-48% of parents above the clinical cut-off.”
    Quote in the paperSubstantial claim
  • The quote only partly states this claim.

    Findingown data

    The Hospital Anxiety and Depression Scale depression subscale underestimated symptoms of depression by a factor of two.

    “comparisons indicated that the HADS-D underestimated symptoms of depression by a factor of two.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim.

    Premisecitation

    Meta-analyses and systematic reviews have indicated that children and adults with chronic diseases, as well as parent caregivers, are at increased risk for depression and anxiety.

    “Meta-analyses and systematic reviews have indicated that children and adults with chronic diseases, as well as parent caregivers, are at increased risk for depression and anxiety.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [1][2][3]

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

  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Premisenone given

    Studies evaluating depression and anxiety in patients with cystic fibrosis have generally found a high prevalence of psychological distress.

    “Studies evaluating depression and anxiety in patients with CF have generally found a high prevalence of psychological distress.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Cystic fibrosis is the most common genetic, life-limiting chronic disease among Caucasian populations.

    “Cystic fibrosis (CF) is the most common genetic, life-limiting chronic disease among Caucasian populations”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [4] Sawicki, 2011, Longitudinal assessment of health-related quality of life in an observational cohort of patients with cystic fibrosis, Pediatr Pulmonol source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductown data

    In analyses that pooled data across countries, nesting of participants within 9 countries was accounted for by including country as a fixed effect.

    “In analyses that pooled data across countries, this nesting was accounted for by including country as a fixed effect (i.e., different intercept for each country) in the models.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Study design and conductown data

    Because few participant responses were missing, this was unlikely to significantly bias the results, and complete cases were used in all analyses.

    “Because few participant responses were missing, this was unlikely to significantly bias the results, and we opted to use complete cases in all analyses.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    The Hospital Anxiety and Depression Scale has extensive reliability and validity data and was designed specifically for patients with chronic medical conditions.

    “It has extensive reliability and validity data, and was designed specifically for patients with chronic medical conditions (i.e., removal of somatic items).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [18] Zigmond, 1983, The hospital anxiety and depression scale, Acta Psychiatric Scand source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    The Center for Epidemiologic Studies-Depression scale is a well-established self-report measure of depressive symptomatology for community samples.

    “The CES-D is a well-established self-report measure of depressive symptomatology for community samples.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [19] Radloff, 1991, The use of the Center for Epidemiologic Studies Depression Scale in adolescents and young adults, J Youth Adolesc source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Cystic fibrosis requires a treatment regimen that takes between 2 and 4 hours per day.

    “requires a treatment regimen that takes between 2 and 4 h per day.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [4] Sawicki, 2011, Longitudinal assessment of health-related quality of life in an observational cohort of patients with cystic fibrosis, Pediatr Pulmonol source
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    The Center for Epidemiologic Studies-Depression scale has 20 items measuring symptoms of depression that reflect diagnostic criteria on the DSM-IV and has correlated well with diagnostic interviews.

    “It has 20 items measuring symptoms of depression that reflect diagnostic criteria on the DSM-IV and has correlated well with diagnostic interviews.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [19] Radloff, 1991, The use of the Center for Epidemiologic Studies Depression Scale in adolescents and young adults, J Youth Adolesc source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given

    Study protocols were approved by national and local ethics committees or institutional review boards at all cystic fibrosis centres.

    “Study protocols were approved by national and local ethics committees or institutional review boards at all CF centres.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationcitation

    37% of mothers and 31% of fathers reported clinically elevated depression, which is three times the rate in community samples.

    “37% of mothers and 31% of fathers reported clinically elevated depression, which is three times the rate in community samples.23 24”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [23] Martin, 2006, Validity of the brief patient health questionnaire mood scale (PHQ-9) in the general population, Gen Hosp Psychiatry source
    • cites [24] Pignone, 2002, Screening for depression in adults: a summary of the evidence for the US Preventive Services Task Force, Ann Intern Med source
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    It is possible that this sample is not representative of the larger international population.

    “it is possible that this sample is not representative of the larger international population.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationown data

    Comorbidity of anxious and depressive symptoms within individuals was high, suggesting that elevations in anxiety confer a heightened risk for depression.

    “As found in prior studies, comorbidity of anxious and depressive symptoms within individuals was high, suggesting that elevations in anxiety confer a heightened risk for depression.”
    Quote in the paperNot a substantial claim
  • Classified as probably not a substantial claim. May combine two claims.

    Premisecitation

    More recent evidence has clearly shown that the Hospital Anxiety and Depression Scale has significant problems, including lack of sensitivity, underestimation of symptoms and a three-factor, rather than two-factor structure, and is not recommended for screening.

    “more recent evidence has clearly shown that this screening tool has significant problems, including lack of sensitivity, underestimation of symptoms and a threefactor, rather than two-factor structure, and is not recommended for screening.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [33][34][35]

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

  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationown data

    These results highlight the importance of measuring and treating mental health issues in patients and families coping with serious, chronic illnesses.

    “These results highlight the importance of measuring and treating mental health issues in patients and families coping with serious, chronic illnesses.”
    Quote in the paperNot a substantial claim
24 of 24
  • The paper relies on this without support.

    Prior studies of depression and anxiety in cystic fibrosis have been limited by small sample sizes and different screening or diagnostic tools, making interpretation of the results difficult.

    “however, these studies have been limited by small sample sizes and different screening or diagnostic tools, which have made interpretation of the results difficult.”
  • The paper relies on this without support.

    The majority of studies have only assessed symptoms of depression but not anxiety in cystic fibrosis.

    “Additionally, the majority of studies have only assessed symptoms of depression but not anxiety.”
  • The paper relies on this without support.

    The Center for Epidemiologic Studies-Depression scale includes items representing the full spectrum of depressive symptoms underlying the construct.

    “By contrast, the CES-D included items representing the full spectrum of depressive symptoms underlying this construct.”
3 of 3

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • In the TIDES study, only IVs and other markers of pulmonary exacerbations and events, such as hemoptysis, were related to depression and anxiety.

    “These results are similar to those found in the TIDES study [12], in which only IVs and other markers of pulmonary exacerbations and events, such as hemoptysis, were related to depression and anxiety.”

    From Rates of depression and anxiety in Italian patients with cystic fibrosis and parent caregivers: Implementation of the Mental Health Guidelines (2020) · cites this paper as [12]

    The Predictors of depression and anxiety section (p. 1094) links intravenous antibiotics and haemoptysis/pneumothorax with elevated symptoms. But it also identifies associations with age, sex, lung function, BMI, transplant listing, and psychological treatment, so the claim that *only* the stated medical events were related is not supported. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • PwCF and their families are at greater risk of mental health issues due to multiple factors.

    “Like most chronic conditions, PwCF and their families are at greater risk of mental health issues due to multiple factors (22).”

    From Virtual monitoring in CF – the importance of continuous monitoring in a multi-organ chronic condition (2023) · cites this paper as [22]

    The Discussion reports depression and anxiety rates two to three times those of community samples in people with CF and parent caregivers. It also identifies several associated risk factors, but does not establish that those factors cause the elevated risk implied by “due to.” (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • In that study, elevated symptoms of anxiety were found in 32% of adults, 22% of adolescents, 48% of mothers and 36% of fathers.

    “Elevated symptoms of anxiety were found in 32% of adults, 22% of adolescents, 48% of mothers and 36% of fathers [12].”
  • In the largest mental health screening study to date in nine countries, including 6088 individuals with CF and 4102 parent caregivers, elevated symptoms of depression were found in 19% of adults, 10% of adolescents, 37% of mothers and 31% of fathers.

    “In the largest mental health screening study to date in nine countries, which included 6088 individuals with CF and 4102 parent caregivers, a substantial proportion reported elevated symptoms of depression and anxiety.Elevated symptoms of depression were found in 19% of adults, 10% of adolescents, 37% of mothers and 31% of fathers.”
  • Italian prevalence statistics are higher than those published in the TIDES study.

    “These Italian prevalence statistics are higher than those published in the TIDES study [12] most likely because the screening tools recommended in the guidelines are more sensitive to these symptoms [33].”

Self-check

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

Each contradiction between two passages listed here was confirmed by an independent check.

  • Adult BMI association is described in the wrong direction

    Major

    The text says lower BMI was associated with adult anxiety, but Table 3 reports an odds ratio of 1.03 per BMI unit, indicating higher odds with higher BMI.

  • Parent-adolescent depression odds ratios differ

    Minor

    The abstract gives an odds ratio of 2.32 for depression concordance, whereas the results section gives 2.39 for that comparison.

2 of 2

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Quittner, 2012, Treatment adherence in adolescents with cystic fibrosis, 77

Cited by

Sorted by citations

Authors
Quittner, A. L., Goldbeck, L., Abbott, J., Duff, A., Lambrecht, P., Solé, A., Tibosch, M. M., Bergsten Brucefors, A., Yüksel, H., Catastini, P., Blackwell, L., & Barker, D.
Affiliations
  • University of Miami (US)
  • University Hospital Ulm (DE)
  • University of Lancashire (GB)
  • Leeds Teaching Hospitals NHS Trust (GB)
  • Université Libre de Bruxelles (BE)
  • Radboud University Nijmegen (NL)
  • Manisa Celal Bayar University (TR)
  • Meyer Children's Hospital (IT)
  • Boston Children's Hospital (US)
  • Brown University (US)
Corresponding author
Quittner, Alexandra L
Venue
Thorax
Publisher
BMJ
Published
2014-09-21
Volume
69
Issue
12
Pages
1090-1097
ISSN
  • 0040-6376 (ISSN-L)
  • 1468-3296
OpenAlex
W2107382266
Cited by
524
References
42
Citations by year
2026: 29 · 2025: 37 · 2024: 42 · 2023: 60 · 2022: 74 · 2021: 65 · 2020: 50 · 2019: 33 · 2018: 44 · 2017: 32 · 2016: 24 · 2015: 31 · 2014: 2
FWCI
23.76
Type
journal article
Language
en
Open access
Locations
  • Thorax (publishedVersion)
  • PubMed (publishedVersion)
  • CLOK (University of Central Lancashire) (acceptedVersion)
  • HighWire Press Open Archive (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cystic Fibrosis Research Advances
  • Social Sciences › Psychology › Clinical Psychology › Child and Adolescent Psychosocial and Emotional Development
  • Social Sciences › Psychology › Social Psychology › Mental Health Treatment and Access
Keywords
cystic fibrosis, depression, anxiety, parental caregivers, caregiver burden, adolescents, adults, comorbidities, cross-national comparison, psychological screening
MeSH terms
Adolescent, Adult, Anxiety, Child, Cystic Fibrosis, Depression, Europe, Family Health, Female, Humans, Male, Middle Aged, Parents, Psychiatric Status Rating Scales, Risk Factors, Turkey, United States, Comorbidity, Prevalence, Caregivers, Young Adult

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