Wei Jie Ong1,2, Yu Heng Kwan1,2, Zhui Ying Lim1, Julian Thumboo1,2, Seng Jin Yeo3, William Yeo3, Steven B Wong4, Ying Ying Leung5,6. 1. Department of Rheumatology & Immunology, Singapore General Hospital, 20 College Road, Singapore, 169856, Singapore. 2. Duke-NUS Medical School, 8 College Rd, Singapore, Singapore. 3. Department of Orthopedics, Singapore General Hospital, Singapore, Singapore. 4. Department of Radiology, Sengkang General Hospital, Singapore, Singapore. 5. Department of Rheumatology & Immunology, Singapore General Hospital, 20 College Road, Singapore, 169856, Singapore. katyccc@hotmail.com. 6. Duke-NUS Medical School, 8 College Rd, Singapore, Singapore. katyccc@hotmail.com.
Abstract
OBJECTIVES: Pain catastrophizing impacts symptoms and outcomes for knee osteoarthritis (OA). We evaluated the internal consistency, content, construct and structure validity of the Pain Catastrophizing Scale (PCS) in patients with knee OA. METHODS: We evaluated content validity of PCS via cognitive interviews. We then recruited patients with knee OA enlisted for knee replacement (KR) surgery in a Singapore tertiary referral hospital for cross-sectional validation evaluation of PCS. Data was collected 2 weeks prior to KR. Analyses was guided by the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) framework for internal consistency, construct validity and structure validity. RESULTS: Adequate content validity was confirmed from 10 patients in cognitive interviews. 675 (70.4% female, mean (standard deviation, SD) age = 65.52 (6.84) years) were included (91.7% total KR, 8.3% unicompartmental KR) in the cross-sectional study. The mean (SD) PCS score was 12.65 (10.55), with 0.14% and 8.63% ceiling and floor effects, respectively. PCS demonstrates high internal consistency (Cronbach's alpha = 0.94). Construct validity was demonstrated by fulfilment of seven out of seven (100%) a priori hypotheses. PCS was strongly correlated with anxiety and depression, and moderately correlated with physical functioning and mental health domains of the short form 36 health survey (SF-36). Sensitivity analyses between Chinese and non-Chinese subgroups are generally consistent. From confirmatory factor analysis, the PCS model showed good fit for a second-order, three-factor structure (CFI = 0.965, TLI = 0.950, SRMR = 0.031). CONCLUSIONS: This study supports internal consistency, construct validity and structural validity of PCS as a measure of pain catastrophizing in knee OA patients. Key points • The PCS is validated for measuring pain catastrophizing in knee OA patients, for evaluation of possible link to post-KR surgery satisfaction outcomes and other purposes.
OBJECTIVES:Pain catastrophizing impacts symptoms and outcomes for knee osteoarthritis (OA). We evaluated the internal consistency, content, construct and structure validity of the Pain Catastrophizing Scale (PCS) in patients with knee OA. METHODS: We evaluated content validity of PCS via cognitive interviews. We then recruited patients with knee OA enlisted for knee replacement (KR) surgery in a Singapore tertiary referral hospital for cross-sectional validation evaluation of PCS. Data was collected 2 weeks prior to KR. Analyses was guided by the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) framework for internal consistency, construct validity and structure validity. RESULTS: Adequate content validity was confirmed from 10 patients in cognitive interviews. 675 (70.4% female, mean (standard deviation, SD) age = 65.52 (6.84) years) were included (91.7% total KR, 8.3% unicompartmental KR) in the cross-sectional study. The mean (SD) PCS score was 12.65 (10.55), with 0.14% and 8.63% ceiling and floor effects, respectively. PCS demonstrates high internal consistency (Cronbach's alpha = 0.94). Construct validity was demonstrated by fulfilment of seven out of seven (100%) a priori hypotheses. PCS was strongly correlated with anxiety and depression, and moderately correlated with physical functioning and mental health domains of the short form 36 health survey (SF-36). Sensitivity analyses between Chinese and non-Chinese subgroups are generally consistent. From confirmatory factor analysis, the PCS model showed good fit for a second-order, three-factor structure (CFI = 0.965, TLI = 0.950, SRMR = 0.031). CONCLUSIONS: This study supports internal consistency, construct validity and structural validity of PCS as a measure of pain catastrophizing in knee OA patients. Key points • The PCS is validated for measuring pain catastrophizing in knee OA patients, for evaluation of possible link to post-KR surgery satisfaction outcomes and other purposes.
Authors: Daniel L Riddle; Francis J Keefe; William T Nay; Daphne McKee; David E Attarian; Mark P Jensen Journal: Arch Phys Med Rehabil Date: 2011-04-29 Impact factor: 3.966
Authors: Robert R Edwards; Jennifer A Haythornthwaite; Michael T Smith; Brendan Klick; Jeffrey N Katz Journal: Pain Res Manag Date: 2009 Jul-Aug Impact factor: 3.037
Authors: Michael E Forsythe; Michael J Dunbar; Allan W Hennigar; Michael J L Sullivan; Michael Gross Journal: Pain Res Manag Date: 2008 Jul-Aug Impact factor: 3.037
Authors: Theo Vos; Abraham D Flaxman; Mohsen Naghavi; Rafael Lozano; Catherine Michaud; Majid Ezzati; Kenji Shibuya; Joshua A Salomon; Safa Abdalla; Victor Aboyans; Jerry Abraham; Ilana Ackerman; Rakesh Aggarwal; Stephanie Y Ahn; Mohammed K Ali; Miriam Alvarado; H Ross Anderson; Laurie M Anderson; Kathryn G Andrews; Charles Atkinson; Larry M Baddour; Adil N Bahalim; Suzanne Barker-Collo; Lope H Barrero; David H Bartels; Maria-Gloria Basáñez; Amanda Baxter; Michelle L Bell; Emelia J Benjamin; Derrick Bennett; Eduardo Bernabé; Kavi Bhalla; Bishal Bhandari; Boris Bikbov; Aref Bin Abdulhak; Gretchen Birbeck; James A Black; Hannah Blencowe; Jed D Blore; Fiona Blyth; Ian Bolliger; Audrey Bonaventure; Soufiane Boufous; Rupert Bourne; Michel Boussinesq; Tasanee Braithwaite; Carol Brayne; Lisa Bridgett; Simon Brooker; Peter Brooks; Traolach S Brugha; Claire Bryan-Hancock; Chiara Bucello; Rachelle Buchbinder; Geoffrey Buckle; Christine M Budke; Michael Burch; Peter Burney; Roy Burstein; Bianca Calabria; Benjamin Campbell; Charles E Canter; Hélène Carabin; Jonathan Carapetis; Loreto Carmona; Claudia Cella; Fiona Charlson; Honglei Chen; Andrew Tai-Ann Cheng; David Chou; Sumeet S Chugh; Luc E Coffeng; Steven D Colan; Samantha Colquhoun; K Ellicott Colson; John Condon; Myles D Connor; Leslie T Cooper; Matthew Corriere; Monica Cortinovis; Karen Courville de Vaccaro; William Couser; Benjamin C Cowie; Michael H Criqui; Marita Cross; Kaustubh C Dabhadkar; Manu Dahiya; Nabila Dahodwala; James Damsere-Derry; Goodarz Danaei; Adrian Davis; Diego De Leo; Louisa Degenhardt; Robert Dellavalle; Allyne Delossantos; Julie Denenberg; Sarah Derrett; Don C Des Jarlais; Samath D Dharmaratne; Mukesh Dherani; Cesar Diaz-Torne; Helen Dolk; E Ray Dorsey; Tim Driscoll; Herbert Duber; Beth Ebel; Karen Edmond; Alexis Elbaz; Suad Eltahir Ali; Holly Erskine; Patricia J Erwin; Patricia Espindola; Stalin E Ewoigbokhan; Farshad Farzadfar; Valery Feigin; David T Felson; Alize Ferrari; Cleusa P Ferri; Eric M Fèvre; Mariel M Finucane; Seth Flaxman; Louise Flood; Kyle Foreman; Mohammad H Forouzanfar; Francis Gerry R Fowkes; Richard Franklin; Marlene Fransen; Michael K Freeman; Belinda J Gabbe; Sherine E Gabriel; Emmanuela Gakidou; Hammad A Ganatra; Bianca Garcia; Flavio Gaspari; Richard F Gillum; Gerhard Gmel; Richard Gosselin; Rebecca Grainger; Justina Groeger; Francis Guillemin; David Gunnell; Ramyani Gupta; Juanita Haagsma; Holly Hagan; Yara A Halasa; Wayne Hall; Diana Haring; Josep Maria Haro; James E Harrison; Rasmus Havmoeller; Roderick J Hay; Hideki Higashi; Catherine Hill; Bruno Hoen; Howard Hoffman; Peter J Hotez; Damian Hoy; John J Huang; Sydney E Ibeanusi; Kathryn H Jacobsen; Spencer L James; Deborah Jarvis; Rashmi Jasrasaria; Sudha Jayaraman; Nicole Johns; Jost B Jonas; Ganesan Karthikeyan; Nicholas Kassebaum; Norito Kawakami; Andre Keren; Jon-Paul Khoo; Charles H King; Lisa Marie Knowlton; Olive Kobusingye; Adofo Koranteng; Rita Krishnamurthi; Ratilal Lalloo; Laura L Laslett; Tim Lathlean; Janet L Leasher; Yong Yi Lee; James Leigh; Stephen S Lim; Elizabeth Limb; John Kent Lin; Michael Lipnick; Steven E Lipshultz; Wei Liu; Maria Loane; Summer Lockett Ohno; Ronan Lyons; Jixiang Ma; Jacqueline Mabweijano; Michael F MacIntyre; Reza Malekzadeh; Leslie Mallinger; Sivabalan Manivannan; Wagner Marcenes; Lyn March; David J Margolis; Guy B Marks; Robin Marks; Akira Matsumori; Richard Matzopoulos; Bongani M Mayosi; John H McAnulty; Mary M McDermott; Neil McGill; John McGrath; Maria Elena Medina-Mora; Michele Meltzer; George A Mensah; Tony R Merriman; Ana-Claire Meyer; Valeria Miglioli; Matthew Miller; Ted R Miller; Philip B Mitchell; Ana Olga Mocumbi; Terrie E Moffitt; Ali A Mokdad; Lorenzo Monasta; Marcella Montico; Maziar Moradi-Lakeh; Andrew Moran; Lidia Morawska; Rintaro Mori; Michele E Murdoch; Michael K Mwaniki; Kovin Naidoo; M Nathan Nair; Luigi Naldi; K M Venkat Narayan; Paul K Nelson; Robert G Nelson; Michael C Nevitt; Charles R Newton; Sandra Nolte; Paul Norman; Rosana Norman; Martin O'Donnell; Simon O'Hanlon; Casey Olives; Saad B Omer; Katrina Ortblad; Richard Osborne; Doruk Ozgediz; Andrew Page; Bishnu Pahari; Jeyaraj Durai Pandian; Andrea Panozo Rivero; Scott B Patten; Neil Pearce; Rogelio Perez Padilla; Fernando Perez-Ruiz; Norberto Perico; Konrad Pesudovs; David Phillips; Michael R Phillips; Kelsey Pierce; Sébastien Pion; Guilherme V Polanczyk; Suzanne Polinder; C Arden Pope; Svetlana Popova; Esteban Porrini; Farshad Pourmalek; Martin Prince; Rachel L Pullan; Kapa D Ramaiah; Dharani Ranganathan; Homie Razavi; Mathilda Regan; Jürgen T Rehm; David B Rein; Guiseppe Remuzzi; Kathryn Richardson; Frederick P Rivara; Thomas Roberts; Carolyn Robinson; Felipe Rodriguez De Leòn; Luca Ronfani; Robin Room; Lisa C Rosenfeld; Lesley Rushton; Ralph L Sacco; Sukanta Saha; Uchechukwu Sampson; Lidia Sanchez-Riera; Ella Sanman; David C Schwebel; James Graham Scott; Maria Segui-Gomez; Saeid Shahraz; Donald S Shepard; Hwashin Shin; Rupak Shivakoti; David Singh; Gitanjali M Singh; Jasvinder A Singh; Jessica Singleton; David A Sleet; Karen Sliwa; Emma Smith; Jennifer L Smith; Nicolas J C Stapelberg; Andrew Steer; Timothy Steiner; Wilma A Stolk; Lars Jacob Stovner; Christopher Sudfeld; Sana Syed; Giorgio Tamburlini; Mohammad Tavakkoli; Hugh R Taylor; Jennifer A Taylor; William J Taylor; Bernadette Thomas; W Murray Thomson; George D Thurston; Imad M Tleyjeh; Marcello Tonelli; Jeffrey A Towbin; Thomas Truelsen; Miltiadis K Tsilimbaris; Clotilde Ubeda; Eduardo A Undurraga; Marieke J van der Werf; Jim van Os; Monica S Vavilala; N Venketasubramanian; Mengru Wang; Wenzhi Wang; Kerrianne Watt; David J Weatherall; Martin A Weinstock; Robert Weintraub; Marc G Weisskopf; Myrna M Weissman; Richard A White; Harvey Whiteford; Steven T Wiersma; James D Wilkinson; Hywel C Williams; Sean R M Williams; Emma Witt; Frederick Wolfe; Anthony D Woolf; Sarah Wulf; Pon-Hsiu Yeh; Anita K M Zaidi; Zhi-Jie Zheng; David Zonies; Alan D Lopez; Christopher J L Murray; Mohammad A AlMazroa; Ziad A Memish Journal: Lancet Date: 2012-12-15 Impact factor: 79.321
Authors: Tom J Crijns; Niels Brinkman; Sina Ramtin; David Ring; Job Doornberg; Paul Jutte; Karl Koenig Journal: Clin Orthop Relat Res Date: 2022-02-01 Impact factor: 4.755