Validity and reliability of the Patient Health Questionnaire-8 in Swedish for individuals with systemic sclerosis

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Fältnamn	Indikatorer	Metadata
000		04690naa a2200457 4500
001		oai:lup.lub.lu.se:6945900e-a5c6-468f-8189-c9d5f18bebb2
003		SwePub
008		200723s2020 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
009		oai:prod.swepub.kib.ki.se:144208474
024	7	a https://lup.lub.lu.se/record/6945900e-a5c6-468f-8189-c9d5f18bebb22 URI
024	7	a https://doi.org/10.1007/s00296-020-04641-12 DOI
024	7	a http://kipublications.ki.se/Default.aspx?queryparsed=id:1442084742 URI
040		a (SwePub)lud (SwePub)ki
041		a engb eng
042		9 SwePub
072	7	a art2 swepub-publicationtype
072	7	a ref2 swepub-contenttype
100	1	a Mattsson, Malinu Karolinska Institutet,Karolinska Institute,Sunderby Hospital4 aut
245	1 0	a Validity and reliability of the Patient Health Questionnaire-8 in Swedish for individuals with systemic sclerosis
264		c 2020-07-13
264	1	b Springer Science and Business Media LLC,c 2020
300		a 13 s.
520		a Background: Depressive symptoms are common in rheumatic diseases and influence patients’ quality of life. The Patient Health Questionnaire-9 (PHQ-9), which assesses symptoms of depression, is valid in English in patients with systemic sclerosis (SSc). However, the measurement properties of the PHQ-8 (short version of the PHQ-9) have not been evaluated in Swedish patients with SSc. Objective: To investigate different aspects of validity and reliability of the PHQ-8 in Swedish (PHQ-8 Swe) for individuals with SSc. Methods: A total of 101 patients with SSc participated. Content validity was evaluated via interviews of 11 patients and 10 health professionals. Construct validity, internal consistency test–retest reliability, and floor/ceiling effects were evaluated in 90 patients. Results: Content validity was satisfactory, but some linguistic adjustments were made. Confirmatory factor analysis supported a better fit for a two-factor structure. Moderate-to-strong correlations were found between the PHQ-8 Swe and scleroderma HAQ including VAS (rs = 0.4–0.7); Multidimensional Assessment of Fatigue (rs = 0.7); RAND-36 subscales (rs = − 0.5 to − 0.8); and lung disease severity (Medsger scores) (rs = 0.4). There were weak correlations (rs = <0.4) between the PHQ-8 Swe and modified Rodnan skin score; and vascular, heart, and kidney disease severity. Cronbach’s alpha was 0.85, corrected item-to-total correlations were >0.40, and the ICC for the total score was 0.83. No floor/ceiling effects were found. Conclusion: The PHQ-8 Swe has satisfactory content validity and sufficient reliability in patients with in majority limited SSc. It is more strongly associated with self-reported disability, pain, disease interferences with daily activities, fatigue, and quality of life than with disease severity, except for a moderate association with lung severity.
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Reumatologi och inflammation0 (SwePub)302102 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Rheumatology and Autoimmunity0 (SwePub)302102 hsv//eng
653		a Depression
653		a Patient-reported outcome measures
653		a Psychometrics
653		a Quality of life
653		a Scleroderma systemic
700	1	a Sandqvist, Gunnelu Lund University,Lunds universitet,Reumatologi och molekylär skelettbiologi,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Rheumatology,Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Skåne University Hospital4 aut0 (Swepub:lu)arb-gsa
700	1	a Hesselstrand, Rogeru Lund University,Lunds universitet,Forskargruppen för systemisk skleros, Lund,Forskargrupper vid Lunds universitet,Lund Systemic Sclerosis Research Group,Lund University Research Groups,Skåne University Hospital4 aut0 (Swepub:lu)reum-rhe
700	1	a Nordin, Annicau Karolinska Institutet,Karolinska Institute,Karolinska University Hospital4 aut
700	1	a Boström, Carinau Karolinska Institutet,Karolinska Institute,Karolinska University Hospital4 aut
710	2	a Karolinska Instituteb Sunderby Hospital4 org
773	0	t Rheumatology Internationald : Springer Science and Business Media LLCg 40:10, s. 1675-1687q 40:10<1675-1687x 0172-8172x 1437-160X
856	4	u http://dx.doi.org/10.1007/s00296-020-04641-1x freey FULLTEXT
856	4	u https://link.springer.com/content/pdf/10.1007/s00296-020-04641-1.pdf
856	4 8	u https://lup.lub.lu.se/record/6945900e-a5c6-468f-8189-c9d5f18bebb2
856	4 8	u https://doi.org/10.1007/s00296-020-04641-1
856	4 8	u http://kipublications.ki.se/Default.aspx?queryparsed=id:144208474

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