Reliability and validity of the coping strategy inventory-short form applied to hemodialysis patients in 13 countries: Results from the Dialysis Outcomes and Practice Patterns Study (DOPPS).
OBJECTIVES
The Coping Strategies Inventory-Short Form (CSI-SF) measures four coping strategies based on 16 items: 4 items each indicating problem- vs. emotion-focused engagement or disengagement. Here we provide the first assessment of reliability and construct validity of the CSI-SF among hemodialysis patients across 13 countries.


METHODS
The CSI-SF was completed by patients in 9 languages in phase 4 of the Dialysis Outcomes and Practice Patterns Study (2009-11). Cronbach's alpha was used to assess internal consistency. Exploratory and confirmatory factor analyses were applied to assess the factor structure of the CSI-SF by country and language. CSI-SF data were analyzed from 7201 patients (60% male; median age 62.5 [range 18-96] years).


RESULTS
Good internal consistency (α=0.56-0.80) was seen for three scales in English (US, UK, Canada, Australia, New Zealand), German, and Swedish versions. The fourth scale was internally consistent if two items were dropped. In these countries, both exploratory and confirmatory factor analyses indicated a factor structure consistent with the four CSI-SF scales. Other language versions showed a factor structure inconsistent with these four scales.


CONCLUSION
The slightly modified English, German, and Swedish versions of the CSI-SF are reliable and valid instruments for measuring coping strategies in hemodialysis patients.
['Speyer|Elodie|E|', 'Morgenstern|Hal|H|', 'Hayashino|Yasuaki|Y|', 'Kerr|Peter G|PG|', 'Rayner|Hugh|H|', 'Robinson|Bruce M|BM|', 'Pisoni|Ronald L|RL|']
D000223:Adaptation, Psychological D000293:Adolescent D000328:Adult D000368:Aged D000369:Aged, 80 and over D001315:Australia D002170:Canada D015331:Cohort Studies D017281:Cost of Illness D003431:Cross-Cultural Comparison D005260:Female D005500:Follow-Up Studies D006801:Humans D007676:Kidney Failure, Chronic D008297:Male D008875:Middle Aged D010555:Personality Inventory D010865:Pilot Projects D011446:Prospective Studies D011594:Psychometrics D006435:Renal Dialysis D015203:Reproducibility of Results D013548:Sweden D055815:Young Adult
Coping Hemodialysis Confirmatory factor analysis Cross-cultural research Exploratory factor analysis